WRK-21 – CVT Chain Guide Breakage – 2019-2020 Subaru Ascent, 2020 Legacy & Outback

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For Subaru Field Service Engineer Use ONLY Applicability: 2019-20MY Ascent Number: WRK-21 2020MY Legacy & Outback Subject: TR690 Chain Guide Inspection / TCM Reprogramming Date: 1/31/22 Introduction: This Service Campaign focuses on inspection of the CVT chain guide and reprogramming of the TR690 Transmission Control Module (TCM). The chain guide may be damaged as a result of chain slippage. Outlined below is an inspection procedure and the correct courses of action to be taken depending on the inspection result. Part Information: Model Part Description Part Number Quantity Ascent with CVTF Cooler CVT Assembly 31000AK130 1 Ascent Without CVTF Cooler CVT Assembly 31000AK140 1 Legacy CVT Assembly 31000AK270 1 Outback CVT Assembly 31000AK280 1 ALL GSKT-16.3X22X1.0 803916100 1 NOTE: The plug gasket 803916100 is required for the inspection process. Additional Required Tools: • Videoscope Kit (provided by SOA): This scope is required for the chain guide inspection procedure. Each retailer will be shipped ONE of these kits when they become available. CRITICAL: The Videoscope Kit PROVIDED BY SOA is the ONLY scope that can be use for this inspection. NO other scopes are to be used for chain inspection. • Holder 18361AA090: This specialty plug is used in conjunction with the Videoscope Kit. It sets the position of the scope’s camera to provide an optimum inspection of the chain guide affected area . CVTF Model Transmission Fluid Part Number Quantity/Unit/Pack Warranty Part # Legacy & Outback High Torque CVTF-LV SOA748V0300 5 Gallon Pail SOA635312 Ascent SOA748V0310 16 Gallon Keg For Subaru Field Service Engineer Use ONLY Service Procedure / Information: STEP 1-A: Reprogram the Transmission Control Module (TCM) with the TEMPORARY PAK file. NOTE: See Appendix A for additional information regarding control module reprograming. STEP 1-B: Display the following data using the Subaru Select Monitor (SSM4). • IMPORTANT: Restart the SSM application after the TEMPORARY pak file is installed. • Verify the VIN information and select “Diagnosis”. • Select “Target Each System.” TEMPORARY PAK FILES Model MY Specification PAK File Name New ECM Part # Old ECM Part # Decryption Keyword New CID Number ASCENT 19 2.4L DIT CVT without CVTF cooler QMBT-0109_ 30919AF98D.pak 30919AF98D 30919AF98A 30919AF98B 30919AF98C 30919AF98D 343F77BD R8FEE800 2.4L DIT CVT with CVTF cooler QMBT-0109_ 30919AF99D.pak 30919AF99D 30919AF99A 30919AF99B 30919AF99C 30919AF99D 94725282 R8FEF800 20 2.4L DIT CVT without CVTF cooler QMBT-0109_ 30919AH13E.pk2 30919AH13E 30919AH13A 30919AH13B 30919AH13C 30919AH13D 30919AH13E 474040BE Q9FEE900 2.4L DIT CVT with CVTF cooler QMBT-0109_ 30919AH14E.pk2 30919AH14E 30919AH14A 30919AH14B 30919AH14C 30919AH14D 30919AH14E 84FD5C70 Q9FEF900 LEGACY 20 2.4L DIT CVT QMBT-0109_ 30919AG75C.pk2 30919AG75C 30919AG75A 30919AG75B 30919AG75C 960FEB54 C7FEC740 OUTBACK 20 2.4L DIT CVT QMBT-0109_ 30919AG76C.pk2 30919AG76C 30919AG76A 30919AG76B 30919AG76C DEA0BDD9 C7FEF740 For Subaru Field Service Engineer Use ONLY • Select “Transmission” then select “Data Monitor”. • Scroll through the select signal list and confirm the following items are selected (Blue Highlighted). Once all items are highlighted, click the “Add” button. • Confirm the selections are now transferred to the column on the right side. Continue by clicking the “OK” button. SELECT SIGNAL ITEMS Run Confirmation Slip A Information Slip A Distance 1 Slip A Distance 2 Slip A Distance 3 Slip B Information Slip B Distance 1 Slip B Distance 2 Slip B Distance 3 1 Confirm Selection Confirm Selection These items are These items are displayed when scrolling displayed when scrolling to the bottomto the bottom of the list. of the list. Confirm all the selections have been transferred. For Subaru Field Service Engineer Use ONLY STEP 2A: Review the “Slip A Information” & “Slip B Information” values. • If CVT chain slip has been detected, the value of “Slip A Information” and/or “Slip B Information” will display up to three counts depending on the driving conditions. • If the CVT chain slip has Not been detected, the value of “Slip A Information” and/or “Slip B Information” will display a count of zero. EXAMPLE: STEP 2B: Apply the data values gathered from the STEP 2A to the table below to determine the next course of action. Item Value Unit Run Confirmation With Request Slip A Information ０ Slip A Distance 1 0.0 Mile Slip A Distance 2 0.0 Mile Slip B Distance 3 0.0 Mile Slip B Information ０ Slip A Distance 1 0.0 Mile Slip A Distance 2 0.0 Mile Slip B Distance 3 0.0 Mile Pattern Monitor Items Value Result Next Step Pattern 1 Slip A Information 0 CVT chain slip has NOT been detected. Proceed to STEP 3 Slip B Information 0 Pattern 2 Slip A Information 1, 2, or 3 CVT chain slip has been detected Proceed to STEP 4 Slip B Information 0 Pattern 3 Slip A Information 0 Slip B Information 1, 2, or 3 Pattern 4 Slip A Information 1, 2, or 3 Slip B Information 1, 2, or 3 For Subaru Field Service Engineer Use ONLY STEP 3A: Check the “Run Confirmation” monitor item value. EXAMPLE: STEP 3B: Apply the data values gathered from the STEP 3A to the table below to determine the next course of action. Monitor Items Value Result Next Step Run Confirmation With Request Drive Test is necessary Proceed to STEP 6 No Request Drive Test is NOT necessary Proceed to STEP 8 STEP 4A: Check the vehicle history and determine if the CVT assembly has been previously replaced. Has the CVT assembly has been previously replaced? YES – Proceed to STEP 5 NO – Proceed to STEP 9 Item Value Unit Run Confirmation With Request Slip A Information ０ Slip A Distance 1 0.0 Mile Slip A Distance 2 0.0 Mile Slip A Distance 3 0.0 Mile Slip B Information ０ Slip B Distance 1 0.0 Mile Slip B Distance 2 0.0 Mile Slip B Distance 3 0.0 Mile For Subaru Field Service Engineer Use ONLY STEP 5A: Review the Slip A & Slip B Distance data values. • If CVT chain slip has been detected, the mileage will be recorded in any of the six mileage monitor items. • If CVT chain slip is NOT detected, there will be a zero in all six mileage monitor items. EXAMPLE: STEP 5B: Compare the mileage of the latest CVT chain slip checked in STEP 5A with the mileage of the previous CVT assembly replacement. Item Value Unit Run Confirmation No Request Slip A Information 1 Slip A Distance 1 1500.1 Mile Slip A Distance 2 0.0 Mile Slip A Distance 3 0.0 Mile Slip B Information 2 Slip B Distance 1 0.0 Mile Slip B Distance 2 43000.0 Mile Slip B Distance 3 45001.0 Mile For Subaru Field Service Engineer Use ONLY STEP 6: Perform a road test under the conditions described below. 1. Move the gear selector to the D Range and STOP the vehicle. 2. CAREFULLY accelerate to 25 mph under FULL throttle then safely decelerate. Proceed to STEP 7 STEP 7A: Switch the ignition switch to the OFF position and wait 30 seconds. STEP 7B: Switch the ignition switch back to the ON position. Using SSM, check the displayed value of the “Slip A Information” monitor item. STEP 7C: Apply the data values gathered from the STEP 7B to the table below to determine the next course of action. Pattern Monitor Items Value Result Next Step Pattern 1 Slip A Information 0 CVT chain slip has NOT been detected. Proceed to STEP 8 Slip B Information 0 Pattern 2 Slip A Information 1, 2, or 3 CVT chain slip has been detected Proceed to STEP 9 Slip B Information 0 Pattern 3 Slip A Information 0 Slip B Information 1, 2, or 3 Pattern 4 Slip A Information 1, 2, or 3 Slip B Information 1, 2, or 3 For Subaru Field Service Engineer Use ONLY STEP 8A: Disconnect the vehicle from the SSM at this time. Remove the 10mm bolt retaining the insulator cover on the right side of the CVT. STEP 8B: CAREFULLY lift the insulation only as far as necessary to expose the plug as shown below. FRONT FRONT FRONT FRONT FRONT For Subaru Field Service Engineer Use ONLY STEP 8C: Install and align the specialty plug / holder (18361AA090) as shown below. • The holder is designed to provide the proper insertion angle for the videoscope camera. • Install the tool by tightening the holder down BY HAND ONLY. • Slightly loosen the holder so the flat section of the tool is facing downward (parallel to the floor). See the example illustrations below. NOTE: NEVER use any wrench, socket, etc. when tightening the plug / holder tool. STEP 8D: Perform a visual inspection of the chain guide rail. • Prepare the videoscope camera by measuring and marking approximately 5mm (0.2inch) from where the metal section of the scope tip meets the flexible portions. This section can be marked using a marker or tape. Use the example photos below as a guide. Flat Section of the Holder 18361AA090 5mm (Approx. 0.2 Inch) 30mm (Approx. 1.2 Inch) FRONT For Subaru Field Service Engineer Use ONLY • Identify the top section of the scope camera lens while performing a function test of the scope. This can help for the scope view positioning. • Insert the scope camera into the plug / holder up to the previously marked line. • Set the magnification of the videoscope to 1.0. 5mm (Approx. 0.2 inch) Maintain the “Parallel to the Floor” Position of the Plug / Holder Tool For Subaru Field Service Engineer Use ONLY STEP 8E: Inspect the position of the lower end of the chain guide rail and the drive pinion shaft. CORRECT GUIDE POSITIONING: FRONT Chain Chain Guide Guide Pin Drive Pinion Shaft Holder Chain Guide Here, the gap between the guide and pinion shaft is narrow and the guide is PARALLEL to the drive pinion shaft. The chain guide is properly engaged with the guide pin. For Subaru Field Service Engineer Use ONLY INCORRECT GUIDE POSITIONING 1: INCORRECT GUIDE POSITIONING 2: Chain Chain Guide Guide Pin Drive Pinion Shaft Holder Chain Guide The gap between the guide and pinion shaft is wider than normal and the chain guide is NOT PARALLEL to the drive pinion shaft. The guide rail is off to the UPPER side of the guide pin. Chain Chain Guide Guide Pin Drive Pinion Shaft Holder Chain Guide There is NO gap between the guide and the drive pinion shaft. The guide rail is off to the LOWER side of the guide pin. For Subaru Field Service Engineer Use ONLY STEP 8F: Remove the holder (18361AA090). • Reinstall the original plug with a NEW gasket. Tightening torque: 35 N·m (25.8ft-lbs.) • Install the bolt retaining the insulator cover. Tightening torque：8 N·m (5.9ft-lbs.) STEP 8G: Using the inspection results from STEP 8E, use the table below to determine the next course of action. STEP 9A: Replace the CVT assembly. The service procedures for CVT assembly replacement remain unchanged. Always refer to the applicable Service Manual and review the full requirements of the repair being performed. The Service Manual procedures contain information critical to performing an effective repair the first time, every time. This includes but is not limited to important SAFETY precautions, proper inspection criteria, necessary special tools, required processes and related one-time-use parts needed for a complete and lasting repair. Refer to STIS: Transmission/Transaxle > CONTINUOUSLY VARIABLE TRANSMISSION > Transmission Assembly > Removal/Installation STEP 9B: Proceed to STEP 10. STEP 10: Reprogram the Transmission Control Module (TCM) with the CORRECTION PAK file. NOTE: See Appendix A for additional information regarding control module reprograming. CAUTION: Confirm the ATF oil temp warning light stays off after all reprograming has been performed. Result Next step CORRECT POSITION Proceed to STEP 10 INCORRECT POSITION 1 OR 2 Proceed to STEP 9 WRK-21 CORRECTION PAK FILES Model MY Specification PAK file name New ECM Part # Old ECM Part # Decryption Keyword New CID Number ASCENT 19 2.4L DIT CVT without CVTF cooler 30919AF98D.pak 30919AF98D 30919AF98D 8F890D29 R8FEE800 2.4L DIT CVT with CVTF cooler 30919AF99D.pak 30919AF99D 30919AF99D 0340D26F R8FEF800 20 2.4L DIT CVT without CVTF cooler 30919AH13E.pk2 30919AH13E 30919AH13E E84E7990 Q9FEE900 2.4L DIT CVT with CVTF cooler 30919AH14E.pk2 30919AH14E 30919AH14E 42B81D46 Q9FEF900 LEGACY 20 2.4L DIT CVT 30919AG75C.pk2 30919AG75C 30919AG75C E12DA33D C7FEC740 OUTBACK 20 2.4L DIT CVT 30919AG76C.pk2 30919AG76C 30919AG76C F615CC67 C7FEF740 For Subaru Field Service Engineer Use ONLY CALIFORNIA “VEHICLE EMISSION RECALL – PROOF OF CORRECTION” CERTIFICATE The California Air Resources Board and the Department of Motor Vehicles Registration/Recall Program requires that all emission related Recall/Campaign or Service Program repairs be completed before a vehicle registration is renewed. Please provide owners of vehicles registered in the state of California a completed “Vehicle Emission Recall – Proof of Correction” certificate. Vehicle owners should be advised to retain this certificate because the California Department of Motor Vehicles may require they provide proof this service program repair has been completed. Additional certificates are available through normal parts ordering channels using part number MSA6P1301. Quantity 1 = 1 booklet of 50 certificates. SERVICE PROGRAM IDENTIFICATION LABEL: Type or print the necessary information on a Campaign Identification Label. The completed label should be attached to the vehicle’s upper radiator support. Additional labels are available through normal parts ordering channels. The part number is MSA6P1302, which comes as one sheet of 20 labels. WRK-21 For Subaru Field Service Engineer Use ONLY Claim Reimbursement and Entry Procedures: Credit to perform this recall will be based on properly completed repair order information. Retailers may submit claims through Subarunet.com. Labor Description Labor Operation # Labor Time Fail Code Claim Type TCM REPROGRAMMING, SSM DATA CHECK & VEHICLE INSPECTION WITH VIDEOSCOPE A103-008 1 WRK-21 RC TCM REPROGRAMMING, SSM DATA CHECK, TEST DRIVE & VEHICLE INSPECTION WITH VIDEOSCOPE A103-018 1.3 TCM REPROGRAMMING, SSM DATA CHECK & CVT ASSEMBLY REPLACEMENT A103-000 5.3 TCM REPROGRAMMING, SSM DATA CHECK, VEHICLE INSPECTION WITH VIDEOSCOPE & CVT ASSEMBLY REPLACEMENT A103-010 5.5 TCM REPROGRAMMING, SSM DATA CHECK, TEST DRIVE & CVT ASSEMBLY REPLACMENT A103-020 5.6 TCM REPROGRAMMING, SSM DATA CHECK, VEHICLE INSPECTION WITH VIDEOSCOPE, TEST DRIVE & CVT ASSEMBLY REPLACEMENT A103-030 5.8 IMPORTANT REMINDERS: • SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time. • Always check for any open recalls or campaigns anytime a vehicle is in for servicing. • Always refer to STIS for the latest service information before performing any repairs. For Subaru Field Service Engineer Use ONLY Appendix A STEP 1: Subaru of America, Inc. (SOA) highly recommends connecting either the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-100 Diagnostic Battery Charger to the vehicle and utilizing the Power Supply Mode feature to supply a stable 13.5 volts anytime a vehicle control module is being reprogrammed. Once the Midtronics charger is connected to the vehicle, if the battery is fully charged, it takes less than three (3) minutes to boot-up the charger, select the Power Supply Mode, and have the battery voltage stabilized and ready for reprogramming. NOTES: • For instructions on using the power supply mode, reference the applicable User Manual for the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR8-1100 Diagnostic Battery Charger on STIS. • Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all switched OFF before setting up the charger for Power Supply Mode. • Select the correct battery type (Flooded, EFB, Gel, AGM or AGM Spiral). • Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have different CCA ratings. Always confirm the battery’s CCA rating before proceeding. • If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to 13.5 volts. • DO NOT connect the DST-i or SDI until the Power Supply mode function has completed its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on the display. • Once Power Supply Mode reaches a steady 13.5 volts, connect the DST-i or SDI to the OBD connector and proceed with initiating the normal FlashWrite reprogramming process. • Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage rises beyond 14V while programming is in process, the procedure will abort. This can indicate a need to test or charge the vehicle battery before any further attempt at programming is made. VERY IMPORTANT: This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY. It does not apply to any other brand / type of “generic” battery charger whatsoever. ONLY the DCA-8000 and the GR8-1100 and their Power Supply Mode feature have been tested and approved by SOA. REMINDER: If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge it fully using the DCA-8000 or GR8-1100 before proceeding to reprogram the vehicle using the Power Supply Mode. NOTES: • Control module failures resulting from battery discharge during reprogramming are not a matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose per the procedure outlined in the applicable Service Manual. For Subaru Field Service Engineer Use ONLY • The NEW Calibration Identification number (CID) for any newly-installed programming (as confirmed from the actual control module AFTER installation) MUST be noted on the repair order as this information is required for claim submission. • The pack file listings provided in this bulletin are the latest available at the time of publishing. Updates are often released thereafter without revision to the original bulletin. For this reason, it is critical to always have the latest version of Select Monitor software installed on your system. You can confirm if a later version is available by entering the CID listed in this bulletin into FlashWrite. If a newer CID is shown as available in FlashWrite, reprogram using that file. STEP 2: Using the SSM4, clear the AT Learning Data using the following procedure: • Start > Diagnosis > Vehicle Selection > Each System > Transmission > Work Support > Clear AT Learning Data. • Click “YES” and when “Execute Clear AT Learning” is displayed, click “YES” again. • Turn the ignition OFF, wait at LEAST 30 seconds then turn the ignition back ON. At this point, the AT Temp light will start blinking; 4 times in 2 seconds to signify the Clear AT Learning procedure has completed successfully. If the AT Temp light does not flash as described, repeat Step 2 again from the beginning. NOTE: AT Learning Procedure is ONLY required with CVT replacement.

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Subaru of America, Inc. P.O. Box 9103 Camden, NJ 08101-9877 844-373-6614 www.subaru.com Dear Subaru Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subaru of America, Inc. (Subaru) has decided that a defect, which relates to motor vehicle safety, exists in certain 2019-2020 model year Ascent vehicles and certain 2020 Legacy and Outback vehicles. You received this notice because our records indicate that you currently own one of these vehicles. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WHAT YOU SHOULD DO Subaru is in the process of acquiring the tools and reprogramming files necessary to perform this repair and expects to have a sufficient supply available in May. Once the repair is available, Subaru will contact you again by mail advising you to proceed with scheduling an appointment with your Subaru retailer (dealer). WHAT SUBARU WILL DO Once the tools and reprogramming files are available to perform this repair, your Subaru retailer will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to you. OWNER INFORMATION Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days. If you have moved or sold your vehicle, please update this information online at www.subaru.com, select ‘Customer Support,’ then select ‘Address Update’ or ‘Ownership Update’ from the “Quick Links” menu. IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge for the same repair. Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below. Subaru of America, Inc. Customer-Retailer Services Department, Attention: WRK-21 Recall P.O. Box 9103, Camden, NJ 08101-9877 URGENT IMPORTANT SAFETY RECALL This notice applies to the VIN below Subaru Safety Recall WRK-21 NHTSA Recall ID 21V-955 February 2022 Interim Notification Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this process to be completed. IF YOU NEED FURTHER ASSISTANCE: To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’ For additional information, please go to: https://www.wrk21.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to www.subaru.com and select “Customer Support” • By telephone: 1-844-373-6614 Monday through Friday between 8:00 a.m. and 7:00 p.m. ET • By U.S. Postal mail: Write us at Subaru of America, Inc. Attn: Customer-Retailer Services Department P.O. Box 9103, Camden, NJ 08101-9877 To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot.gov/ nhtsa/subscriptions. Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800- 424-9153) or go to https://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy your vehicle without charge within a reasonable amount of time. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment once you are notified that the remedy is available. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION

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Subaru of America, Inc. P.O. Box 9103 Camden, NJ 08101-9877 844-373-6614 www.subaru.com Dear Subaru Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subaru of America, Inc. (Subaru) has decided that a defect, which relates to motor vehicle safety, exists in certain 2019-2020 model year Ascent vehicles and certain 2020 Legacy and Outback vehicles. You received this notice because our records indicate that you currently own one of these vehicles. This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WHAT YOU SHOULD DO As mentioned above, vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Subaru is in the process of acquiring the tools and reprogramming files necessary to perform this repair and expects to have a sufficient supply available in May. Once the repair is available, Subaru will contact you again by mail advising you to proceed with scheduling an appointment with your Subaru retailer (dealer). WHAT SUBARU WILL DO Once the tools and reprogramming files are available to perform this repair, your Subaru retailer will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to you. OWNER INFORMATION Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days. If you have moved or sold your vehicle, please update this information online at www.subaru.com, select ‘Customer Support,’ then select ‘Address Update’ or ‘Ownership Update’ from the “Quick Links” menu. IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge for the same repair. URGENT IMPORTANT SAFETY RECALL This notice applies to the VIN below Subaru Safety Recall WRK-21 NHTSA Recall ID 21V-955 February 2022 Interim Notification Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below. Subaru of America, Inc. Customer-Retailer Services Department, Attention: WRK-21 Recall P.O. Box 9103, Camden, NJ 08101-9877 Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this process to be completed. IF YOU NEED FURTHER ASSISTANCE: To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’ For additional information, please go to: https://www.wrk21.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to www.subaru.com and select “Customer Support” • By telephone: 1-844-373-6614 Monday through Friday between 8:00 a.m. and 7:00 p.m. ET • By U.S. Postal mail: Write us at Subaru of America, Inc. Attn: Customer-Retailer Services Department P.O. Box 9103, Camden, NJ 08101-9877 To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot.gov/ nhtsa/subscriptions. Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800- 424-9153) or go to https://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy your vehicle without charge within a reasonable amount of time. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment once you are notified that the remedy is available. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION

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Retailer Pre-owned Assistance Program – CVT Chain Guide Breakage (WRK-21) To: All Subaru Retailers In support of our retailer partners currently stocking pre-owned Subaru vehicles affected by the CVT chain guide breakage recall (WRK-21) announced on December 10, 2021, we are pleased to provide financial assistance during the time repairs are unavailable for these vehicles and therefore unsellable. Twenty states currently mandate a curtailment for used vehicles impacted by a recall, and retailers in those states will be reimbursed at the prevailing rate. For those retailers in states without a mandate for used vehicles under recall, we will use a blended rate of 1% per month. Affected vehicles include any of the following you have in stock as of, or subsequent to 12/10/2021: Model Year Carline Production date range 2019-2020 Ascent February 22, 2018 – July 20, 2020 2020 Legacy (turbo models) July 15, 2019 – August 13, 2020 2020 Outback (turbo models) July 15, 2019 – August 13, 2020 Steps to Receive Reimbursement: To receive assistance from Subaru of America, each retailer must submit the information below related to any vehicles in inventory and unsellable for any period of time. The information must be submitted to your zone or distributor in one excel file, which is attached. The file name must include your retailer number. For each VIN, please provide the following:  Retailer Name  SOA Retailer Number  Retailer Physical Location State (two characters)  Full VIN (all 17 Characters)  Current Vehicle Mileage  Date acquired (If prior to 12/10/21 use 12/10/2021)  Date Repaired  Carrying Value (i.e. Current Floor Plan carrying value or cost of acquisition if not floor planned)  If sold, please provide date sold, buyers order, or wholesale documents.  Retailers providing this information certify the vehicles were/are on their lot, they agree to an audit of the list, and they agree to submit additional documentation upon request Repair Procedure and Curtailment Submission Process Subaru is in the process of acquiring the special service tools and reprogramming (PAK) files for this recall. Once they are available, additional information will be released and the WRK-21 Product Campaign Bulletin will be published on STIS with detailed service and claim instructions. After tools are received, we anticipate all pre-owned vehicles will be repaired by the end of the following month. Once repairs are completed on all vehicles in stock, Retailers should submit their excel file containing curtailment submissions to your zone or distributor. As noted earlier, please submit only one curtailment submission worksheet with all vehicles listed at the same time. Once received and reviewed, Retailers will be reimbursed on their next parts statement.

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: December 10, 2021 New Subaru Safety & Emissions Recall: WRK-21 – CVT Chain Guide Breakage Subaru of America, Inc. (Subaru) is initiating a new safety and emissions Recall for certain 2019 – 2020 model year Ascent vehicles, 2020 model year turbo Legacy vehicles, and 2020 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break. Description of the Defect and Safety Risk Due to an improper program, the CVT chain may slip, resulting in breakage of the chain guide. If the chain guide breaks, fragments of the guide could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the CVT drive chain could break. If a drive chain breakage occurs while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. Affected Vehicles The number of U.S. vehicles included in this recall is 198,255. Not all vehicles in the production date ranges listed above may be included in this recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com, which will be available today. The status of this recall will display as “Open – Remedy Not Yet Available” until the special service tools and reprogramming (PAK) files are available to support this recall. Service, Parts, and Claim Instructions Subaru is in the process of acquiring the special service tools and reprogramming (PAK) files for this recall. Once they are available, additional information will be released and the WRK-21 Product Campaign Bulletin will be published on STIS with detailed service and claim instructions. Retailer Responsibility Please be advised that it is a violation of Federal law for a dealer to deliver a new motor vehicle covered by a recall under a sale or lease until the defect is remedied. Therefore, any Authorized Subaru Retailer failing to perform the applicable service procedures to correct all affected vehicles in their inventory prior to the vehicle being placed in service may be subject to civil penalties of up to $21,000 per violation (i.e., for each vehicle), as provided in 49 CFR §578.6 and will also be in breach of the Subaru Dealer Agreement. Model Year Carline Production date range 2019-2020 Ascent February 22, 2018 – July 20, 2020 2020 Legacy (turbo models) July 15, 2019 – August 13, 2020 2020 Outback (turbo models) July 15, 2019 – August 13, 2020 Any vehicles listed in any recall or campaign that are in retailer stock must be: • Immediately identified • Tagged or otherwise marked to prevent their delivery or use prior to repair • Repaired in accordance with the repair procedures outlined in the Bulletin Retailers are to promptly perform the applicable service procedures, to correct all affected vehicles in their inventory (new, used, demo & SSLP). Additionally, whenever a vehicle subject to this recall is taken into inventory or in for service, necessary steps should be taken to ensure the repair has been made before selling or releasing the vehicle. Owner Notification Subaru will notify affected vehicle owners by first class mail within 60 days. Retailers will be advised when the notification is scheduled.

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To: All Subaru Retailers From: Subaru of America, Inc. – Service Operations Department Date: February 23, 2022 Re: WRK-21 CVT Chain Guide Breakage Recall – Customer communications and rental The purpose of this communication is to assist retailers in responding to customer questions regarding the WRK-21 recall until the remedy repair is available. Customers owning vehicles affected by the WRK-21 CVT Chain Guide Breakage recall were sent an interim owner notification letter on 2/7/22, (see Appendix A and B for customer letters). If a customer reaches out with questions related to the WRK-21 safety recall, it is important to first confirm applicability of the customer’s VIN and then, if the vehicle is included in this safety recall, to understand whether the customer is currently experiencing an issue with the operation of their vehicle. To ensure consistent messaging to our customers, and to avoid misinformation, please ensure your customer-facing personnel have reviewed and are conveying the following points: • For customers not experiencing an issue with the operation of their vehicle: If the customer is not currently experiencing an issue with their vehicle, then please inform the customer that the remedy is not yet available and to notify you in the event anything changes with the operation of their vehicle. Subaru of America is in the process of acquiring the tools and reprogramming files necessary for retailers to perform the recall repair. Once the repair is available, Subaru of America will contact all affected owners again by first class mail advising them to schedule an appointment for the WRK-21 recall repair. • For customers experiencing an issue with the operation of their vehicle: If the customer is experiencing an issue with their vehicle, then the issue should be addressed by an authorized Subaru retailer accordingly. If the customer expresses a concern with an abnormal sound they are hearing and/or feels an unusual vibration while driving, as described in TSB 16-132-20R, then please follow the service procedure information outlined in that bulletin. The service procedure outlined in TSB 16-132-20R is not a substitute for the recall remedy repair, and the customer will need to return for the recall remedy once it becomes available. However, the service procedure outlined in the bulletin should help resolve the operational concerns the customer may be experiencing. Once the recall repair is available, Subaru of America will contact all affected owners again by first class mail advising them to schedule an appointment for the WRK-21 recall repair. As described in the interim owner notification letter, the repair will include the following: • Subaru retailers will reprogram the TCU. • The historical TCU data will be analyzed for chain slip characteristics and/or the chain guide will be visually inspected. • If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All recall remedy repairs necessary will be completed at no cost to the customer. • For customers expressing concern about driving their vehicle as a result of this safety recall: If a customer expresses concern about driving their vehicle until the safety recall can be performed, then the customer can be offered an SSLP vehicle or a third-party rental vehicle per Claims Policies and Procedures. If you are placing an affected owner into an SSLP or rental vehicle, you must follow the steps outlined below to submit for a rental pre-authorization. Subaru of America will reimburse up to $50 a day for a rental vehicle, as described in the Claims Policies and Procedures. Rental pre-authorization process When submitting a rental pre-authorization, in addition to the VIN, repair order and job information, please use the following coding: Authorization Reason: Extended Rental- Service Capacity Claim Type: Recall Campaign Repair code: WRK-21 Labor operation: 101102 for 0 hours Claim Specific information: Depending on the type of rental vehicle provided to the customer, add SSLP or 3rd party rental of $50 to the pre-authorization. Please include a copy of the RO and rental agreement in the attachments tab of the authorization. Should you have any questions, please contact the Claims Team at 866-782-2782. APPENDIX A- WRK-21 Owner Interim notification letter (not affected by WUV-07) URGENT IMPORTANT SAFETY RECALL This notice applies to the VIN below Subaru of America, Inc. P.O. Box 9103 Camden, NJ 08101-9877 844-373-6614 www.subaru.com Subaru Safety Recall WRK-21 NHTSA Recall ID 21V-955 February 2022 Interim Notification Dear Subaru Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subaru of America, Inc. (Subaru) has decided that a defect, which relates to motor vehicle safety, exists in certain 2019-2020 model year Ascent vehicles and certain 2020 Legacy and Outback vehicles. You received this notice because our records indicate that you currently own one of these vehicles. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WHAT YOU SHOULD DO Subaru is in the process of acquiring the tools and reprogramming files necessary to perform this repair and expects to have a sufficient supply available in May. Once the repair is available, Subaru will contact you again by mail advising you to proceed with scheduling an appointment with your Subaru retailer (dealer). WHAT SUBARU WILL DO Once the tools and reprogramming files are available to perform this repair, your Subaru retailer will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to you. OWNER INFORMATION Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days. If you have moved or sold your vehicle, please update this information online at www.subaru.com, select ‘Customer Support,’ then select ‘Address Update’ or ‘Ownership Update’ from the “Quick Links” menu. IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge for the same repair. Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below. Subaru of America, Inc. Customer-Retailer Services Department, Attention: WRK-21 Recall P.O. Box 9103, Camden, NJ 08101-9877 Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this process to be completed. IF YOU NEED FURTHER ASSISTANCE: To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’ For additional information, please go to: https://www.wrk21.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to www.subaru.com and select “Customer Support” • By telephone: 1-844-373-6614 Monday through Friday between 8:00 a.m. and 7:00 p.m. ET • By U.S. Postal mail: Write us at Subaru of America, Inc. Attn: Customer-Retailer Services Department P.O. Box 9103, Camden, NJ 08101-9877 To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot.gov/ nhtsa/subscriptions. Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800424-9153) or go to https://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy your vehicle without charge within a reasonable amount of time. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment once you are notified that the remedy is available. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION APPENDIX B: WRK-21 Letter for owners with vehicle also affected by WUV-07 URGENT IMPORTANT SAFETY RECALL This notice applies to the VIN below Subaru of America, Inc. P.O. Box 9103 Camden, NJ 08101-9877 844-373-6614 www.subaru.com Subaru Safety Recall WRK-21 NHTSA Recall ID 21V-955 February 2022 Interim Notification Dear Subaru Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subaru of America, Inc. (Subaru) has decided that a defect, which relates to motor vehicle safety, exists in certain 2019-2020 model year Ascent vehicles and certain 2020 Legacy and Outback vehicles. You received this notice because our records indicate that you currently own one of these vehicles. This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WHAT YOU SHOULD DO As mentioned above, vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Subaru is in the process of acquiring the tools and reprogramming files necessary to perform this repair and expects to have a sufficient supply available in May. Once the repair is available, Subaru will contact you again by mail advising you to proceed with scheduling an appointment with your Subaru retailer (dealer). WHAT SUBARU WILL DO Once the tools and reprogramming files are available to perform this repair, your Subaru retailer will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to you. OWNER INFORMATION Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days. If you have moved or sold your vehicle, please update this information online at www.subaru.com, select ‘Customer Support,’ then select ‘Address Update’ or ‘Ownership Update’ from the “Quick Links” menu. IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge for the same repair. Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below. Subaru of America, Inc. Customer-Retailer Services Department, Attention: WRK-21 Recall P.O. Box 9103, Camden, NJ 08101-9877 Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this process to be completed. IF YOU NEED FURTHER ASSISTANCE: To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’ For additional information, please go to: https://www.wrk21.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to www.subaru.com and select “Customer Support” • By telephone: 1-844-373-6614 Monday through Friday between 8:00 a.m. and 7:00 p.m. ET • By U.S. Postal mail: Write us at Subaru of America, Inc. Attn: Customer-Retailer Services Department P.O. Box 9103, Camden, NJ 08101-9877 To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot.gov/ nhtsa/subscriptions. Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800424-9153) or go to https://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy your vehicle without charge within a reasonable amount of time. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment once you are notified that the remedy is available. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION

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Retailer Pre-owned Assistance Program – CVT Chain Guide Breakage (WRK-21) To: All Subaru Retailers In support of our retailer partners currently stocking pre-owned Subaru vehicles affected by the CVT chain guide breakage recall (WRK-21) announced on December 10, 2021, we are pleased to provide financial assistance during the time repairs are unavailable for these vehicles and therefore unsellable. Twenty states currently mandate a curtailment for used vehicles impacted by a recall, and retailers in those states will be reimbursed at the prevailing rate. For those retailers in states without a mandate for used vehicles under recall, we will use a blended rate of 1% per month. Affected vehicles include any of the following you have in stock as of, or subsequent to 12/10/2021: Model Year Carline Production date range 2019-2020 Ascent February 22, 2018 – July 20, 2020 2020 Legacy (turbo models) July 15, 2019 – August 13, 2020 2020 Outback (turbo models) July 15, 2019 – August 13, 2020 Steps to Receive Reimbursement: To receive assistance from Subaru of America, each retailer must submit the information below related to any vehicles in inventory and unsellable for any period of time. The information must be submitted to your zone or distributor in one excel file, which is attached. The file name must include your retailer number. For each VIN, please provide the following:  Retailer Name  SOA Retailer Number  Retailer Physical Location State (two characters)  Full VIN (all 17 Characters)  Current Vehicle Mileage  Date acquired (If prior to 12/10/21 use 12/10/2021)  Date Repaired  Carrying Value (i.e. Current Floor Plan carrying value or cost of acquisition if not floor planned)  If sold, please provide date sold, buyers order, or wholesale documents.  Retailers providing this information certify the vehicles were/are on their lot, they agree to an audit of the list, and they agree to submit additional documentation upon request Repair Procedure and Curtailment Submission Process Subaru is in the process of acquiring the special service tools and reprogramming (PAK) files for this recall. Once they are available, additional information will be released and the WRK-21 Product Campaign Bulletin will be published on STIS with detailed service and claim instructions. After tools are received, we anticipate all pre-owned vehicles will be repaired by the end of the following month. Once repairs are completed on all vehicles in stock, Retailers should submit their excel file containing curtailment submissions to your zone or distributor. As noted earlier, please submit only one curtailment submission worksheet with all vehicles listed at the same time. Once received and reviewed, Retailers will be reimbursed on their next parts statement.

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: February 7, 2022 UPDATE Subaru Safety & Emissions Recall: WRK-21 – CVT Chain Guide Breakage UPDATE Interim Owner Notification Subaru is in the process of acquiring the special service tools and reprogramming (PAK) files required for this recall repair, and expects to have a sufficient supply available in May. Therefore, an interim owner notification letter will be sent by first class mail to all affected owners, on February 7, 2022. Once the special service tools and reprogramming (PAK) files are available to support this recall, the affected owners will be notified again by first class mail to schedule an appointment to have this recall repair completed. Note: This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Once the WRK-21 tools and PAK files are available, any open WUV-07 coverage will be expired. WUV-07 repairs must continue until the WRK-21 recall repair is available. Subaru of America, Inc. (Subaru) is initiating a new safety and emissions Recall for certain 2019 – 2020 model year Ascent vehicles, 2020 model year turbo Legacy vehicles, and 2020 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break. Affected Vehicles The number of U.S. vehicles included in this recall is 198,255. Not all vehicles in the production date ranges listed above may be included in this recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com, which is available. The status of WRK-21 will display as “Open – Remedy Not Yet Available” until the special service tools and reprogramming (PAK) files are available to support this recall. Description of the Defect and Safety Risk Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift Model Year Carline Production date range 2019-2020 Ascent February 22, 2018 – July 20, 2020 2020 Legacy (turbo models) July 15, 2019 – August 13, 2020 2020 Outback (turbo models) July 15, 2019 – August 13, 2020 select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. Service, Parts, and Claim Instructions Once the special service tools and reprogramming (PAK) files are available, additional information will be released and the WRK-21 Product Campaign Bulletin will be published on STIS with detailed service and claim instructions. Retailer Responsibility Please be advised that it is a violation of Federal law for a dealer to deliver a new motor vehicle covered by a recall under a sale or lease until the defect is remedied. Therefore, any Authorized Subaru Retailer failing to perform the applicable service procedures to correct all affected vehicles in their inventory prior to the vehicle being placed in service may be subject to civil penalties of up to $21,000 per violation (i.e., for each vehicle), as provided in 49 CFR §578.6 and will also be in breach of the Subaru Dealer Agreement. Any vehicles listed in any recall or campaign that are in retailer stock must be: • Immediately identified • Tagged or otherwise marked to prevent their delivery or use prior to repair • Repaired in accordance with the repair procedures outlined in the Bulletin Retailers are to promptly perform the applicable service procedures, to correct all affected vehicles in their inventory (new, used, demo & SSLP). Additionally, whenever a vehicle subject to this recall is taken into inventory or in for service, necessary steps should be taken to ensure the repair has been made before selling or releasing the vehicle.

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Subarunet Announcement TO: All Subaru Retailer Service Departments FROM: SOA Service & Quality Dept. ATTENTION: Subaru Service Manager, Shop Foremen, and Technicians FROM: Subaru of America, Inc. DATE: July 29, 2022 SUBJECT: TCM Damage During WRK-21 Programming Recently following the release of the WRK-21 CVT Chain Guide Breakage, SOA’s Techline started to receive some retailer inquiries regarding TCMs not accepting the testing/ temporary pak file or the final pak file and then failing to communicate. Investigation of returned TCMs have found this to be a result of a few different scenarios including: •TCM damage due to use of a standard battery charger or other unspecified battery maintainer, not the required DCA-8000 or GR-8 in (stabilized) power supply mode. NOTE: Use of power supply mode is reported to the BMIS website and can be confirmed by retailer management, Distributor management and SOA. •TCM damage resulting from poor DCA-8000 battery connection due to corroded or worn charger connections. See below for replacement part information. •TCM damage due to connection failure resulting from damaged / failed USB port on the SDS Notebook or DSTi, incorrect (unshielded) wrong specification cable used between SDS notebook and DSTi, and/ or failed OBD cable between DSTi and vehicle OBD port. See below for replacement part information. All retailers are strongly encouraged to inspect and confirm the condition of all programming related equipment (DCA-8000, SDS Notebook, DSTi, Related Cables and Connections) prior to completing additional WRK or other control module updates to reduce the possibility of control unit damage. Additionally ensure all technicians performing WRK-21 have reviewed and are familiar with all procedures as outlined in the recall bulletin. Retailers are cautioned, if a TCM is damaged because of faulty equipment or incorrect procedures followed as part of the WRK programming update, the resulting debit would include BOTH the costs related to the TCM as well as the CVT assembly since damaging the TCM would require an automatic replacement of the CVT since the slip mileages cannot be retrieved. Need Replacement Parts: DCA-8000 – See https://www.subaruretailersolutions.com/ SDS Notebook and DSTi- See https://www.subarunet.com/home/content/1306 Questions may be directed to SOA’s Technical Helpline (Reprogramming Questions Only Please) or your District Service & Quality Manager (DSQM)

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For Subaru Field Service Engineer Use ONLY Applicability: 2019-20MY Ascent Number: WRK-21 2020MY Legacy & Outback Subject: TR690 Chain Guide Inspection / TCM Reprogramming Date: 5/3/22 Introduction: This Service Campaign focuses on inspection of the CVT chain guide and reprogramming of the TR690 Transmission Control Module (TCM). The chain guide may be damaged as a result of chain slippage. Outlined below is an inspection procedure and the correct courses of action to be taken depending on the inspection result. Part Information: NOTE: The plug gasket 803916100 is required for the inspection process. Additional Required Tools: • CRITICAL: ONLY a Videoscope Kit PROVIDED BY SOA is the ONLY scope that can be used for this inspection. NO other scopes are to be used for chain inspection. o The OTC 16-3880X Videoscope has a removable tip. It is suggested to add thread lock to ensure the tip is not lost during inspection. o The Autel MV400-5.5 has a removable tip. This tip MUST be removed prior to inspection. This action will ensure the proper holder/scope fitment. • Holder 18361AA090: This specialty plug is used in conjunction with the OTC 16-3880X Videoscope Kit. It sets the position of the scope’s camera to provide an optimum inspection of the chain guide affected area . Model Part Description Part Number Quantity Ascent with CVTF Cooler CVT Assembly 31000AK130 1 Ascent Without CVTF Cooler CVT Assembly 31000AK140 1 All GSKT-16.3X22X1.0 803916100 1 Subaru Extra MT SOA748V0100 As Needed CVTF Model Transmission Fluid Part Number Quantity/Unit/Pack Warranty Part # Ascent High Torque CVTF-LV SOA748V0300 5 Gallon Pail SOA635312 SOA748V0310 16 Gallon Keg For Subaru Field Service Engineer Use ONLY IMPORTANT NOTE: When the FSEs receive their OTC 16-3880X Videoscope Kits , they should SAVE THE PACKAGING so, when they have completed their “list” of affected vehicles, they can reuse it to ship the scope back to SOA. Requirements: A Quality Monitoring Report (QMR) submission is required on all vehicles regardless of outcome. The QMR MUST include the following: 1. SSM4 Data files. 2. Clear photo of the transmission serial number. 3. Clear photo of the inspection scope images (if scope inspection is required). 4. A clear screenshot or photo of the “Slip A” Information displayed on SSM4. For Subaru Field Service Engineer Use ONLY Service Procedure / Information: For Subaru Field Service Engineer Use ONLY STEP 1-A: Reprogram the Transmission Control Module (TCM) with the TEMPORARY PAK file. NOTE: See Appendix A for additional information regarding control module reprograming. Was the TEMPORARY PAK file installation successful? YES – Proceed to STEP 1-B. NO – Proceed to the Supplemental Work Procedures. TEMPORARY PAK FILES Model MY Specification PAK File Name New ECU Part # Old ECU Part # Decryption Keyword New CID Number Ascent 19 2.4L DIT CVT without CVTF cooler QMBT-0138_ 30919AF98D.pak 30919AF98D 30919AF98A 30919AF98B 30919AF98C 30919AF98D 20033D98 R8FEE800 2.4L DIT CVT with CVTF cooler QMBT-0138_ 30919AF99D.pak 30919AF99D 30919AF99A 30919AF99B 30919AF99C 30919AF99D E8E2711 R8FEF800 20 2.4L DIT CVT without CVTF Air cooler QMBT-0138_30919AH13E.pk2 30919AH13E 30919AH13A 30919AH13B 30919AH13C 30919AH13D 30919AH13E 43D8B02D Q9FEE900 2.4L DIT CVT with CVTF Air cooler QMBT-0138_30919AH14E.pk2 30919AH14E 30919AH14A 30919AH14B 30919AH14C 30919AH14D 30919AH14E A0659976 Q9FEF900 Legacy 20 2.4L DIT CVT QMBT-0138_30919AG75C.pk2 30919AG75C 30919AG75A 30919AG75B 30919AG75C 4FD2D533 C7FEC740 Outback 20 2.4L DIT CVT QMBT-0138_30919AG76C.pk2 30919AG76C 30919AG76A 30919AG76B 30919AG76C FBA77C72 C7FEF740 For Subaru Field Service Engineer Use ONLY STEP 1-B: Display the following data using the Subaru Select Monitor (SSM4). • Switch the ignition switch to the OFF position and wait 30 seconds, then switch to the ON position. • IMPORTANT: Restart the SSM application after the TEMPORARY PAK file is installed. • Verify the VIN information and select “Diagnosis”. • Select “Target Each System.” • Select “Transmission” then select “Data Monitor”. • Scroll through the select signal list and confirm the “Slip A Information” item is selected (Blue Highlighted). Once the item is highlighted, click the “Add” button. IMPORTANT: In the case of failed control module communication with SSM after the installation of the temporary PAK file, check and confirm the interface setting is matched to the equipment being used (SDI, DSTI, & DST 010). SELECT SIGNAL ITEM Slip A Information 1 Confirm Confirm SelectionSelection Th Thisis item item isis displayed displayed when scrolling to the when scrolling to the bottombottom of the list. of the list. For Subaru Field Service Engineer Use ONLY • Confirm the selection is now transferred to the column on the right side. Continue by clicking the “OK” button. STEP 2A: Review the “Slip A Information” value. • If CVT chain slip has been detected, the value of “Slip A Information” will display a value of one. • If the CVT chain slip has Not been detected, the value of “Slip A Information” will display a value of zero. SELECT SIGNAL ITEM Slip A Information Check item Value Result Next step Slip A Information 0 CVT is OK. Go to STEP 3 1 Replace CVT with a new one. Go to STEP 4 Confirm the selection has been transferred. For Subaru Field Service Engineer Use ONLY STEP 3A: Disconnect the vehicle from the SSM at this time. Remove the 10mm bolt retaining the insulator cover on the right side of the CVT. STEP 3B: CAREFULLY lift the insulation only as far as necessary to expose the plug as shown below. FRONT FRONT FRONT FRONT FRONT For Subaru Field Service Engineer Use ONLY STEP 3C: Install and align the specialty plug / holder (18361AA090) as shown below. • The holder is designed to provide the proper insertion angle for the videoscope camera. • Install the tool by tightening the holder down BY HAND ONLY. • Slightly loosen the holder so the flat section of the tool is facing downward (parallel to the floor). See the example illustrations below. NOTE: NEVER use any wrench, socket, etc. when tightening the plug / holder tool. Teflon Tape can be applied to the holder threads for added stability. STEP 3D: Perform a visual inspection of the chain guide rail. • Make sure the OTC threaded camera tip is screwed on tight prior to usage. Prepare the videoscope camera by measuring and marking approximately 5mm (0.2inch) from where the metal section of the scope tip meets the flexible portions. This section can be marked using a marker or tape. Use the example photos below as a guide. Flat Section of the Holder 18361AA090 5mm (Approx. 0.2 Inch) 30mm (Approx. 1.2 Inch) FRONT For Subaru Field Service Engineer Use ONLY • Identify the top section of the scope camera lens while performing a function test of the scope. This can help for the scope view positioning. • Insert the scope camera into the plug / holder up to the previously marked line. • Set the magnification of the videoscope to 1.0. 5mm (Approx. 0.2 inch) Maintain the “Parallel to the Floor” Position of the Plug / Holder Tool For Subaru Field Service Engineer Use ONLY STEP 3E: Inspect the position of the lower end of the chain guide rail and the drive pinion shaft. CORRECT GUIDE POSITIONING: FRONT Chain Chain Guide Guide Pin Drive Pinion Shaft Holder Chain Guide Here, the gap between the guide and pinion shaft is narrow and the guide is PARALLEL to the drive pinion shaft. The chain guide is properly engaged with the guide pin. For Subaru Field Service Engineer Use ONLY INCORRECT GUIDE POSITIONING 1: INCORRECT GUIDE POSITIONING 2: Chain Chain Guide Guide Pin Drive Pinion Shaft Holder Chain Guide The gap between the guide and pinion shaft is wider than normal and the chain guide is NOT PARALLEL to the drive pinion shaft. The guide rail is off to the UPPER side of the guide pin. Chain Chain Guide Guide Pin Drive Pinion Shaft Holder Chain Guide There is NO gap between the guide and the drive pinion shaft. The guide rail is off to the LOWER side of the guide pin. For Subaru Field Service Engineer Use ONLY STEP 3F: Remove the holder (18361AA090). • Reinstall the original plug with a NEW gasket. Tightening torque: 35 N·m (25.8ft-lbs.) • Install the bolt retaining the insulator cover. Tightening torque：8 N·m (5.9ft-lbs.) STEP 3G: Using the inspection results from STEP 3E, use the table below to determine the next course of action. STEP 4A: Replace the CVT assembly. The service procedures for CVT assembly replacement remain unchanged. Always refer to the applicable Service Manual and review the full requirements of the repair being performed. The Service Manual procedures contain information critical to performing an effective repair the first time, every time. This includes but is not limited to important SAFETY precautions, proper inspection criteria, necessary special tools, required processes and related one-time-use parts needed for a complete and lasting repair. Refer to STIS: Transmission/Transaxle > CONTINUOUSLY VARIABLE TRANSMISSION > Transmission Assembly > Removal/Installation STEP 4B: Proceed to STEP 5. STEP 5: Reprogram the Transmission Control Module (TCM) with the CORRECTION PAK file. NOTE: See Appendix A for additional information regarding control module reprograming. CAUTION: Confirm the ATF oil temp warning light stays off after all reprograming has been performed. Result Next step CORRECT POSITION Proceed to STEP 5 INCORRECT POSITION 1 OR 2 Proceed to STEP 4 WRK-21 CORRECTION PAK FILES Model MY Specification PAK file name New ECU Part # Old ECU Part # Decryption Keyword New CID Number Ascent 19 2.4L DIT CVT without CVTF cooler 30919AF98E.pak 30919AF98E 30919AF98D 347BBBA5 R8FEE900 2.4L DIT CVT with CVTF cooler 30919AF99E.pak 30919AF99E 30919AF99D AF4E5A81 R8FEF900 20 2.4L DIT CVT without CVTF Air cooler 30919AH13F.pk2 30919AH13F 30919AH13E 8002B571 Q9FEEA00 2.4L DIT CVT with CVTF Air cooler 30919AH14F.pk2 30919AH14F 30919AH14E FA07ACF9 Q9FEFA00 Legacy 20 2.4L DIT CVT 30919AG75D.pk2 30919AG75D E12DA33D 33FBC182 C7FEC840 Outback 20 2.4L DIT CVT 30919AG76D.pk2 30919AG76D F615CC67 7D5D504A C7FEF840 For Subaru Field Service Engineer Use ONLY CALIFORNIA “VEHICLE EMISSION RECALL – PROOF OF CORRECTION” CERTIFICATE The California Air Resources Board and the Department of Motor Vehicles Registration/Recall Program requires that all emission related Recall/Campaign or Service Program repairs be completed before a vehicle registration is renewed. Please provide owners of vehicles registered in the state of California a completed “Vehicle Emission Recall – Proof of Correction” certificate. Vehicle owners should be advised to retain this certificate because the California Department of Motor Vehicles may require they provide proof this service program repair has been completed. Additional certificates are available through normal parts ordering channels using part number MSA6P1301. Quantity 1 = 1 booklet of 50 certificates. SERVICE PROGRAM IDENTIFICATION LABEL: Type or print the necessary information on a Campaign Identification Label. The completed label should be attached to the vehicle’s upper radiator support. Additional labels are available through normal parts ordering channels. The part number is MSA6P1302, which comes as one sheet of 20 labels. WRK-21 For Subaru Field Service Engineer Use ONLY Claim Reimbursement and Entry Procedures: Credit to perform this recall will be based on properly completed repair order information. Retailers may submit claims through Subarunet.com. IMPORTANT: The FINAL Calibration Identification number (CID) for the CORRECTION programming (not the testing file) MUST be noted on the repair order as this information is required for claim submission. Labor Description Labor Operation # Labor Time Fail Code Claim Type TCM REPROGRAMMING, SSM DATA CHECK & VEHICLE INSPECTION WITH VIDEOSCOPE A103-008 1 WRK-21 RC TCM REPROGRAMMING, SSM DATA CHECK & CVT ASSEMBLY REPLACEMENT A103-000 5.3 TCM REPROGRAMMING, SSM DATA CHECK, VEHICLE INSPECTION WITH VIDEOSCOPE & CVT ASSEMBLY REPLACEMENT A103-010 5.5 IMPORTANT REMINDERS: • SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time. • Always check for any open recalls or campaigns anytime a vehicle is in for servicing. • Always refer to STIS for the latest service information before performing any repairs. For Subaru Field Service Engineer Use ONLY Appendix A STEP A-1: Subaru of America, Inc. (SOA) highly recommends connecting either the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-100 Diagnostic Battery Charger to the vehicle and utilizing the Power Supply Mode feature to supply a stable 13.5 volts anytime a vehicle control module is being reprogrammed. Once the Midtronics charger is connected to the vehicle, if the battery is fully charged, it takes less than three (3) minutes to boot-up the charger, select the Power Supply Mode, and have the battery voltage stabilized and ready for reprogramming. NOTES: • For instructions on using the power supply mode, reference the applicable User Manual for the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR8-1100 Diagnostic Battery Charger on STIS. • Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all switched OFF before setting up the charger for Power Supply Mode. • Select the correct battery type (Flooded, EFB, Gel, AGM or AGM Spiral). • Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have different CCA ratings. Always confirm the battery’s CCA rating before proceeding. • If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to 13.5 volts. • DO NOT connect the DST-I, DST 010, or SDI until the Power Supply mode function has completed its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on the display. • Once Power Supply Mode reaches a steady 13.5 volts, connect the DST-I, DST 010, or SDI to the OBD connector and proceed with initiating the normal FlashWrite reprogramming process. • Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage rises beyond 14V while programming is in process, the procedure will abort. This can indicate a need to test or charge the vehicle battery before any further attempt at programming is made. VERY IMPORTANT: This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY. It does not apply to any other brand / type of “generic” battery charger whatsoever. ONLY the DCA-8000 and the GR8-1100 and their Power Supply Mode feature have been tested and approved by SOA. REMINDER: If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge it fully using the DCA-8000 or GR8-1100 before proceeding to reprogram the vehicle using the Power Supply Mode. NOTES: • Control module failures resulting from battery discharge during reprogramming are not a matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose per the procedure outlined in the applicable Service Manual. For Subaru Field Service Engineer Use ONLY • IMPORTANT: The FINAL Calibration Identification number (CID) for the CORRECTION programming (not the testing file) MUST be noted on the repair order as this information is required for claim submission. • The testing and correction pack file listings provided in this bulletin are the latest available at the time of publishing. Updates are often released thereafter without revision to the original bulletin. For this reason, it is critical to always have the latest version of Select Monitor software installed on your system. You can confirm if a later version is available by entering the CID listed in this bulletin into FlashWrite. If a newer CID is shown as available in FlashWrite, reprogram using that file. • AT Learning Procedure is ONLY required with CVT replacement. STEP A-2: (ONLY IF CVT HAS BEEN REPLACED) Using the SSM4, clear the AT Learning Data using the following procedure: • Start > Diagnosis > Vehicle Selection > Each System > Transmission > Work Support > Clear AT Learning Data. • Click “YES” and when “Execute Clear AT Learning” is displayed, click “YES” again. • Turn the ignition OFF, wait at LEAST 30 seconds then turn the ignition back ON. At this point, the AT Temp light will start blinking; 4 times in 2 seconds to signify the Clear AT Learning procedure has completed successfully. If the AT Temp light does not flash as described, repeat Step 2 again from the beginning.

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For Subaru Field Service Engineer Use ONLY Supplemental work procedures for 2019MY Ascent updated with the PAK file released April 12th, 2022. Work Procedure Overview: STEP 1-A: Reprogram the Transmission Control Module (TCM) with the TEMPORARY PAK file. NOTE: See Appendix A for additional information regarding control module reprograming. STEP 1-B: Display the following data using the Subaru Select Monitor (SSM4). • Switch the ignition switch to the OFF position and wait 30 seconds, then switch to the ON position. • IMPORTANT: Restart the SSM application after the TEMPORARY PAK file is installed. • Verify the VIN information and select “Diagnosis”. • Select “Target Each System.” • Select “Transmission” then select “Data Monitor”. TEMPORARY PAK FILES Model MY Specification PAK file name Decryption Keyword New CID Number Ascent 19 2.4L DIT CVT without CVTF cooler QMBT-0140_30919AF98D.pak 0520D600 R8FEE800 2.4L DIT CVT with CVTF cooler QMBT-0140_30919AF99D.pak 43DDD021 R8FEF800 1 For Subaru Field Service Engineer Use ONLY • Scroll through the select signal list and confirm the “Slip A Information, Slip A Mileage 1, Slip A Mileage 2, and Slip A Mileage 3” items are selected (Boxed in RED). Once the items are highlighted, click the “Add” button. IMPORTANT: In the case of failed control module communication with SSM after the installation of the temporary PAK file, check and confirm the interface setting is matched to the equipment being used (SDI, DSTI, & DST 010). • Confirm the selection is now transferred to the column on the right side. Continue by clicking the “OK” button. SELECT SIGNAL ITEM Slip A Information Slip A Mileage 1 Slip A Mileage 2 Slip A Mileage 3 SELECT SIGNAL ITEM Slip A Information Slip A Mileage 1 Slip A Mileage 2 Slip A Mileage 3 Confirm Selection Confirm Selection Th Theseese itemitemss areare displayed when scrolling displayed when scrolling to the bottomto the bottom of the list. of the list. Confirm the selection has been transferred. For Subaru Field Service Engineer Use ONLY STEP 2-A: Review the “Slip A Information” data value and apply the results to the table below. Check item Value Result Next step Slip A Information 0 CVT is OK Proceed to STEP 3 1 Review the vehicle history Proceed to STEP 2-B STEP 2-B: Review all vehicle repair history. Has the CVT assembly been previously replaced? YES – Proceed the STEP 2-C. NO – Proceed to STEP 4. STEP 2-C: Review the “Slip A Mileage 1, Slip A Mileage 2, and Slip A Mileage 3” data values. Are ALL of the “Slip A” data mileage values higher than the mileage of the previous CVT assembly replacement? YES – Proceed to STEP 4 (CVT Replacement). NO – Proceed to STEP 3 (Chain Guide Inspection). For Subaru Field Service Engineer Use ONLY STEP 3A: Disconnect the vehicle from the SSM at this time. Remove the 10mm bolt retaining the insulator cover on the right side of the CVT. STEP 3B: CAREFULLY lift the insulation only as far as necessary to expose the plug as shown below. FRONT FRONT FRONT FRONT FRONT For Subaru Field Service Engineer Use ONLY STEP 3C: Install and align the specialty plug / holder (18361AA090) as shown below. • The holder is designed to provide the proper insertion angle for the videoscope camera. • Install the tool by tightening the holder down BY HAND ONLY. • Slightly loosen the holder so the flat section of the tool is facing downward (parallel to the floor). See the example illustrations below. NOTE: NEVER use any wrench, socket, etc. when tightening the plug / holder tool. Teflon Tape can be applied to the holder threads for added stability. STEP 3D: Perform a visual inspection of the chain guide rail. • Make sure the OTC threaded camera tip is screwed on tight prior to usage. Prepare the videoscope camera by measuring and marking approximately 5mm (0.2inch) from where the metal section of the scope tip meets the flexible portions. This section can be marked using a marker or tape. Use the example photos below as a guide. Flat Section of the Holder 18361AA090 5mm (Approx. 0.2 Inch) 30mm (Approx. 1.2 Inch) FRONT For Subaru Field Service Engineer Use ONLY • Identify the top section of the scope camera lens while performing a function test of the scope. This can help for the scope view positioning. • Insert the scope camera into the plug / holder up to the previously marked line. • Set the magnification of the videoscope to 1.0. 5mm (Approx. 0.2 inch) Maintain the “Parallel to the Floor” Position of the Plug / Holder Tool For Subaru Field Service Engineer Use ONLY STEP 3E: Inspect the position of the lower end of the chain guide rail and the drive pinion shaft. CORRECT GUIDE POSITIONING: FRONT Chain Chain Guide Guide Pin Drive Pinion Shaft Holder Chain Guide Here, the gap between the guide and pinion shaft is narrow and the guide is PARALLEL to the drive pinion shaft. The chain guide is properly engaged with the guide pin. For Subaru Field Service Engineer Use ONLY INCORRECT GUIDE POSITIONING 1: INCORRECT GUIDE POSITIONING 2: Chain Chain Guide Guide Pin Drive Pinion Shaft Holder Chain Guide The gap between the guide and pinion shaft is wider than normal and the chain guide is NOT PARALLEL to the drive pinion shaft. The guide rail is off to the UPPER side of the guide pin. Chain Chain Guide Guide Pin Drive Pinion Shaft Holder Chain Guide There is NO gap between the guide and the drive pinion shaft. The guide rail is off to the LOWER side of the guide pin. For Subaru Field Service Engineer Use ONLY STEP 3F: Remove the holder (18361AA090). • Reinstall the original plug with a NEW gasket. Tightening torque: 35 N·m (25.8ft-lbs.) • Install the bolt retaining the insulator cover. Tightening torque：8 N·m (5.9ft-lbs.) STEP 3G: Using the inspection results from STEP 3E, use the table below to determine the next course of action. STEP 4A: Replace the CVT assembly. The service procedures for CVT assembly replacement remain unchanged. Always refer to the applicable Service Manual and review the full requirements of the repair being performed. The Service Manual procedures contain information critical to performing an effective repair the first time, every time. This includes but is not limited to important SAFETY precautions, proper inspection criteria, necessary special tools, required processes and related one-time-use parts needed for a complete and lasting repair. Refer to STIS: Transmission/Transaxle > CONTINUOUSLY VARIABLE TRANSMISSION > Transmission Assembly > Removal/Installation STEP 4B: Proceed to STEP 5. Result Next step CORRECT POSITION Proceed to STEP 5 INCORRECT POSITION 1 OR 2 Proceed to STEP 4 For Subaru Field Service Engineer Use ONLY STEP 5: Reprogram the Transmission Control Module (TCM) with the CORRECTION PAK file. NOTE: See Appendix A for additional information regarding control module reprograming. CAUTION: Confirm the ATF oil temp warning light stays off after all reprograming has been performed. CALIFORNIA “VEHICLE EMISSION RECALL – PROOF OF CORRECTION” CERTIFICATE The California Air Resources Board and the Department of Motor Vehicles Registration/Recall Program requires that all emission related Recall/Campaign or Service Program repairs be completed before a vehicle registration is renewed. Please provide owners of vehicles registered in the state of California a completed “Vehicle Emission Recall – Proof of Correction” certificate. Vehicle owners should be advised to retain this certificate because the California Department of Motor Vehicles may require they provide proof this service program repair has been completed. Additional certificates are available through normal parts ordering channels using part number MSA6P1301. Quantity 1 = 1 booklet of 50 certificates. WRK-21 CORRECTION PAK FILES Model MY Specification PAK file name New ECU Part # Old ECU Part # Decryption Keyword New CID Number Ascent 19 2.4L DIT CVT without CVTF cooler 30919AF98E.pak 30919AF98E 30919AF98D 347BBBA5 R8FEE900 2.4L DIT CVT with CVTF cooler 30919AF99E.pak 30919AF99E 30919AF99D AFAE5A81 R8FEF900 20 2.4L DIT CVT without CVTF Air cooler 30919AH13F.pk2 30919AH13F 30919AH13E 8002B571 Q9FEEA00 2.4L DIT CVT with CVTF Air cooler 30919AH14F.pk2 30919AH14F 30919AH14E FA07ACF9 Q9FEFA00 Legacy 20 2.4L DIT CVT 30919AG75D.pk2 30919AG75D E12DA33D 33FBC182 C7FEC840 Outback 20 2.4L DIT CVT 30919AG76D.pk2 30919AG76D F615CC67 7D5D504A C7FEF840 For Subaru Field Service Engineer Use ONLY SERVICE PROGRAM IDENTIFICATION LABEL: Type or print the necessary information on a Campaign Identification Label. The completed label should be attached to the vehicle’s upper radiator support. Additional labels are available through normal parts ordering channels. The part number is MSA6P1302, which comes as one sheet of 20 labels. Claim Reimbursement and Entry Procedures: Credit to perform this recall will be based on properly completed repair order information. Retailers may submit claims through Subarunet.com. IMPORTANT: The FINAL Calibration Identification number (CID) for the CORRECTION programming (not the testing file) MUST be noted on the repair order as this information is required for claim submission. Labor Description Labor Operation # Labor Time Fail Code Claim Type TCM REPROGRAMMING, SSM DATA CHECK & VEHICLE INSPECTION WITH VIDEOSCOPE A103-008 1 WRK-21 RC TCM REPROGRAMMING, SSM DATA CHECK & CVT ASSEMBLY REPLACEMENT A103-000 5.3 TCM REPROGRAMMING, SSM DATA CHECK, VEHICLE INSPECTION WITH VIDEOSCOPE & CVT ASSEMBLY REPLACEMENT A103-010 5.5 IMPORTANT REMINDERS: • SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time. • Always check for any open recalls or campaigns anytime a vehicle is in for servicing. • Always refer to STIS for the latest service information before performing any repairs. WRK-21 For Subaru Field Service Engineer Use ONLY Appendix A STEP A-1: Subaru of America, Inc. (SOA) highly recommends connecting either the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-100 Diagnostic Battery Charger to the vehicle and utilizing the Power Supply Mode feature to supply a stable 13.5 volts anytime a vehicle control module is being reprogrammed. Once the Midtronics charger is connected to the vehicle, if the battery is fully charged, it takes less than three (3) minutes to boot-up the charger, select the Power Supply Mode, and have the battery voltage stabilized and ready for reprogramming. NOTES: • For instructions on using the power supply mode, reference the applicable User Manual for the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR8-1100 Diagnostic Battery Charger on STIS. • Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all switched OFF before setting up the charger for Power Supply Mode. • Select the correct battery type (Flooded, EFB, Gel, AGM or AGM Spiral). • Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have different CCA ratings. Always confirm the battery’s CCA rating before proceeding. • If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to 13.5 volts. • DO NOT connect the DST-I, DST 010, or SDI until the Power Supply mode function has completed its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on the display. • Once Power Supply Mode reaches a steady 13.5 volts, connect the DST-I, DST 010, or SDI to the OBD connector and proceed with initiating the normal FlashWrite reprogramming process. • Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage rises beyond 14V while programming is in process, the procedure will abort. This can indicate a need to test or charge the vehicle battery before any further attempt at programming is made. VERY IMPORTANT: This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY. It does not apply to any other brand / type of “generic” battery charger whatsoever. ONLY the DCA-8000 and the GR8-1100 and their Power Supply Mode feature have been tested and approved by SOA. REMINDER: If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge it fully using the DCA-8000 or GR8-1100 before proceeding to reprogram the vehicle using the Power Supply Mode. NOTES: • Control module failures resulting from battery discharge during reprogramming are not a matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose per the procedure outlined in the applicable Service Manual. For Subaru Field Service Engineer Use ONLY • IMPORTANT: The FINAL Calibration Identification number (CID) for the CORRECTION programming (not the testing file) MUST be noted on the repair order as this information is required for claim submission. • The testing and correction pack file listings provided in this bulletin are the latest available at the time of publishing. Updates are often released thereafter without revision to the original bulletin. For this reason, it is critical to always have the latest version of Select Monitor software installed on your system. You can confirm if a later version is available by entering the CID listed in this bulletin into FlashWrite. If a newer CID is shown as available in FlashWrite, reprogram using that file. • AT Learning Procedure is ONLY required with CVT replacement. STEP A-2: (ONLY IF CVT HAS BEEN REPLACED) Using the SSM4, clear the AT Learning Data using the following procedure: • Start > Diagnosis > Vehicle Selection > Each System > Transmission > Work Support > Clear AT Learning Data. • Click “YES” and when “Execute Clear AT Learning” is displayed, click “YES” again. • Turn the ignition OFF, wait at LEAST 30 seconds then turn the ignition back ON. At this point, the AT Temp light will start blinking; 4 times in 2 seconds to signify the Clear AT Learning procedure has completed successfully. If the AT Temp light does not flash as described, repeat Step 2 again from the beginning.

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NUMBER: WRK-21/22R
DATE: 07/05/22
REVISED: 03/15/23

Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 1 of 32 Continued… CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS. Subaru Service Bulletins are intended for use by professional technicians ONLY. They are written to inform those technicians of conditions that may occur in some vehicles, or to provide information that could assist in the proper servicing of the vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do the job correctly and safely. If a condition is described, DO NOT assume that this Service Bulletin applies to your vehicle, or that your vehicle will have that condition. Subaru of America, Inc. is ISO 14001 Compliant ISO 14001 is the international standard for excellence in Environmental Management Systems. Please recycle or dispose of automotive products in a manner that is friendly to our environment and in accordance with all local, state and federal laws and regulations. NUMBER: WRK-21/22R DATE: 07/05/22 REVISED: 03/15/23 APPLICABILITY: 2019-20MY Ascent 2020-21MY Legacy 2.4L (turbo models) 2020-21MY Outback 2.4L (turbo models) SUBJECT: CVT Chain Guide Breakage INTRODUCTION: Subaru of America, Inc. (Subaru) has initiated this safety and emissions Recall for certain 2019 – 2020 model year Ascent vehicles, 2020-2021 model year turbo Legacy vehicles, and 2020-2021 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to an improper program in the transmission control module (TCM), the CVT chain may slip, resulting in breakage of the chain guide. If the chain guide breaks, fragments of the guide could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the CVT drive chain could break. If a drive chain breakage occurs while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WRK-21 AFFECTED VEHICLES The number of U.S. vehicles included in this recall in WRK-21 is 198,255. Model Year Carline Production Date Range 2019-2020 Ascent February 22, 2018 – July 20, 2020 2020 Legacy (turbo models) July 15, 2019 – August 13, 2020 2020 Outback (turbo models) July 15, 2019 – August 13, 2020 Note: This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Any open WUV-07 coverage has been expired. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. WRK21 NHTSA ID: 21V-955 WRK22 NHTSA ID: 22V-485 PRODUCT CAMPAIGN BULLETIN ATTENTION: GENERAL MANAGER ???? PARTS MANAGER ???? CLAIMS PERSONNEL ???? SERVICE MANAGER ???? IMPORTANT – All Service Personnel Should Read and Initial in the boxes provided, right. © 2022 Subaru of America, Inc. All rights reserved. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 2 of 32 Continued… Not all vehicles in the production date ranges listed above may be included in this recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com. The tools and reprogramming files are now available to perform this repair. Therefore, the status of this recall has been set to ‘Open-Limited Parts Available’ for all affected vehicles to allow for repairs to begin if they are presented for service prior to owner notification. WRK-22 AFFECTED VEHICLES On July 7, 2022, the following additional 182 affected vehicles were added to the recall population, which will be identified by recall code WRK22: Model Year Carline Production date range 2020-2021 Legacy (turbo models) May 17, 2019 – August 3, 2020 2020-2021 Outback (turbo models) May 21, 2019 – August 3, 2020 DESCRIPTION OF THE REMEDY Each retailer will receive one videoscope kit and holder required for the chain guide inspection, at no charge. For all affected vehicles, Subaru retailers will reprogram the TCM. The historical TCM data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to the customer. OWNER NOTIFICATION Subaru previously notified affected vehicle owners of the WRK-21 recall with an interim letter by first class mail on February 7, 2022. Affected vehicle owners will be notified that the remedy is available by first class mail, in phases beginning in August. Details of the phased owner notification schedule will be provided in subsequent subarunet.com announcements. Therefore, please refer to the “Communications/ Announcements” section on subarunet.com for that information. Copies of the interim and final owner notification letters will be included at the end of this bulletin. RETAILER RESPONSIBILITY: Please be advised that it is a violation of Federal law for a dealer to deliver a new motor vehicle covered by a recall under a sale or lease until the defect is remedied. Therefore, any Authorized Subaru Retailer failing to perform the applicable service procedures to correct all affected vehicles in their inventory prior to the vehicle being placed in service may be subject to civil penalties of up to $22,423 per violation (i.e., for each vehicle), as provided in 49 CFR §578.6 and will also be in breach of the Subaru Dealer Agreement. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 3 of 32 Continued… Any vehicles listed in any recall/campaign that are in retailer stock must be: • Immediately identified • Tagged or otherwise marked to prevent their delivery or use prior to repair • Repaired in accordance with the repair procedures outlined in the Product Campaign Bulletin Retailers are to promptly perform the applicable service procedures to correct all affected vehicles in their inventory (used, demo & SSLP). Whenever a vehicle subject to this recall is taken into retailer inventory, necessary steps should be taken to ensure the recall correction has been made before selling or releasing the vehicle. PART INFORMATION: REMINDER: Always order the most up-to-date replacement parts based on the specific VIN being repaired. Model Part Description Part Number Quantity Ascent with CVTF Cooler CVT Assembly 31000AK130 1 Ascent Without CVTF Cooler CVT Assembly 31000AK140 1 Outback & Legacy CVT Assembly 31000AK270 1 Outback & Legacy CVT Assembly 31000AK280 1 ALL Subaru Extra MT SOA748V0100 As Needed GSKT-16.3X22X1.0 (Inspection Plug Gasket) 803916100 1 Transmission Cooler Flush SOA868V9255 As Needed IMPORTANT NOTES: • The CVT Assembly 31000AK130 MUST be ordered through PRIME. • All parts highlighted in gray are placed on hold. The PIC team will release the ordered parts when contacted and provided with a valid VIN and order number. Contact must be made within five business days of the order or it will be canceled. • The inspection plug gasket 803916100 is required for the inspection process. If CVT replacement is required, this gasket is to be used for the front differential fill overflow plug. • In a case when Subaru Extra MT 75W-80 SOA748V0100 is not available, High Performance Gear Oil SOA427V1700 can be used as a suitable alternative One-Time Use Parts Kit Contents for CVT Replacement SOA635172 Part Description Part Number Quantity GASKET 803914060 4 GASKET A 44011AL000 2 SELF LOCKING NUT 902330011 4 GASKET-EXHAUST PIPE REAR 44022AA123 1 GASKET-AIR INTAKE DUCT 14497AA080 1 GASKET-INTER COOLER 21896AA130 1 GASKET-EXHAUST PIPE REAR 44011AG000 1 NUT 902170049 2 GASKET 18X24X1.0 803918060 1 NUT FLG M12 902380023 2 NOTE: Though not included in this kit, CIRCLIP (28333AG010) is a one-time use part required in a quantity of 2. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 4 of 32 Continued… IMPORTANT NOTE: The One-Time Use Parts Kit (SOA635172) MUST Be ordered through PRIME. This kit is ONLY to be ordered in the event of CVT replacement. Do not order the items listed above individually. FLUIDS AND CHEMICALS Part Description Bulk Part # Unit size Warranty Part # Unit size 75W-90 High Perf Gear Oil SOA427V1700 1 Quart (12/case) SOA427V1710 16 Gallon Keg SOA635301 One Quart SOA427V1720 55 Gallon Drum 75W-80 Extra MT Gear Oil SOA748V0100 5 Gallon Pail SOA635300 One Quart High Torque CVTF-LV SOA748V0300 5 Gallon Pail SOA635312 One Quart Automatic Transmission Cooler Flush SOA868V9255 12/case SOA635303 One Can A maximum 7 quarts of High Torque CVTF-LV can be claimed with CVT replacement operations. REQUIRED TOOLS: This procedure will require Specialty Tool Kit SOA635170. The information below provides details on the individual components supplied in the kit. • CRITICAL: All retailers have been provided ONE Videoscope at no charge. Additional Videoscopes can be purchased from online automotive equipment suppliers at the retailers expense. • The OTC 16-3880X Videoscope: This is the approved Videoscope kit that is to be used for chain guide inspections. IMPORTANT: This Videoscope has a removable tip. It is suggested to add thread lock (e.g. “blue” Loctite or equivalent) to ensure the tip is not lost during inspection. • Holder 18361AA090: This specialty plug is used in conjunction with the OTC 16-3880X Videoscope Kit. It sets the position of the scope’s camera to provide an optimum inspection of the chain guide affected area. NOTE: Any replacement orders for the holder will require a release from the PIC team. SD Card Information: ALWAYS confirm the Micro SD card is securely seated within the camera slot. If the card is not secure, it will be indicated by a RED circle/slash icon located on the lower left corner of the screen. Removal of the Micro SD card from the display unit is NOT REQUIRED to transfer the camera (photo) image(s). A USB cable is provided in the OTC scope kit to connect the display unit directly to a PC for direct image transfer. In rare cases, the Micro SD card may require added effort during installation. A plastic trim tool can be used to CAREFULLY apply pressure to the card during installation. A “clicktype” noise can be heard when the card is engaged. Successful card installation is indicated by the icon located on the lower left corner of the screen (NO RED circle/slash). Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 5 of 32 Continued… DATA REQUIREMENTS: • The WRK-21 Chain Guide Breakage Recall requires retailers to RETAIN certain information in the form of data and photos relating to this campaign. • The table below outlines the information required. • Claims for CVT replacement require all retained information to be ATTACHED to the claim. • Claims not adhering to these procedures will be subject to REJECTION or DEBIT. • No QMR will be required Retailer must RETAIN this required information The Retailer must RETAIN the following information on ALL WRK-21-related repair orders (See below). Per SOA warranty policy this information must be retained by the retailer, up to 2 years, for the purpose of future review. SSM Data Files (PREFFERRED), screen capture or photo of SSM screen showing mileage data, “Slip A mileage 1, Slip A mileage 2, and Slip A mileage 3” displayed on SSM4 (Attach to the claim if the CVT is being replaced) Inspection Scope Image: Clear photo or screen shot of videoscope image, if the procedure calls for this step. (Attach to the claim if the CVT is being replaced) Transmission Serial Number: 1) Clear photo of the OLD transmission’s serial number. 2) Clear photo of the NEW transmission’s serial number, if the CVT is being replaced. (Attach both the old and new S# to the claim if CVT is being replaced) WRK-21 R.O. Notes must include repair order out (repair completion) mileage of any prior CVT replacements. (Include RO notes in the claim if the CVT is being replaced) For CVT REPLACEMENT CLAIMS: ATTACH all the required information to all CVT replacement claims CLAIMS NOT ADHERING TO THESE PROCEDURE WILL BE SUBJECT TO REJECTION or DEBIT. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 6 of 32 Continued… EXAMPLES Clear photos of the transmission serial number. Required for the unit currently in the vehicle and of the replacement (if CVT is replaced). A clear screenshot or photo of the “Slip A Information, Slip A mileage 1, Slip A Mileage 2, and Slip A Mileage 3” displayed on SSM. ONLY in a situation when no CVT chain slip is detected with SSM and the chain guide is found to be in the incorrect position during inspection, a clear photo or screenshot of the scope image is required to be stored and noted along with the previously mentioned items 1 through 3. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 7 of 32 Continued… SERVICE PROCEDURE / INFORMATION: IMPORTANT NOTE: If any concerns are reported with CVT operation, complete this recall FIRST, and then proceed with related diagnosis if still needed. The latest WRK-21_22 PAK files may help mitigate the Vibration & Possible Judder Concern on Turns Under Acceleration issue, that some cars may be experiencing. However, this WRK-21_22 service procedure cannot mitigate vibration and judder issues that require a mechanical repair procedure. If vibration and/or judder issues remain after performing the WRK-21_22 service, proceed to TSBs 16-132-20R and 16-136-22R which provide the repair procedure to address vibrations and/or judder concerns. STEP 1 Reprogram the TCM with the applicable TEMPORARY PAK file. Slip A information shows “1” STEP 2A Using SSM, Check “Slip A information” in SSM. Save the Slip A Mileage 1, 2, & 3 PIDs STEP 4 Replace the CVT assembly. END STEP 5 Reprogram the TCM with the applicable FINAL PAK file. YES NO YES STEP 2C Are ALL the Slip A Mileage 1, 2 & 3 values greater than the mileage of the latest CVT replacement? Slip A information shows “0” YES NO STEP 3 Check inside of the CVT assembly with a videoscope. Is the position of the chain guide normal? NO STEP 2B Has the CVT been replaced in the past? Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 8 of 32 Continued… STEP 1-A: Perform a DTC check of the TCM and confirm there are no current faults. Any previous faults must be diagnosed, repaired, and cleared prior to reprogramming. Reprogram the Transmission TCM with the TEMPORARY PAK file. CAUTION: The following TEMPORARY PAK files are only to be used in the performance of this recall. Use outside of the performance of this recall is not authorized and not recommended. For concerns found outside of this recall, refer to and follow bulletin 16-132-20R. TEMPORARY PAK FILES Model MY Specification PAK File Name New ECM Part # Old ECM Part # Decryption Keyword New CID Number ASCENT 19 2.4L DIT CVT without CVTF cooler QMBT-0141_ 30919AF98D.pak 30919AF98D 30919AF98A 30919AF98B 30919AF98C 30919AF98D 1A855E79 R8FEE800 2.4L DIT CVT with CVTF cooler QMBT-0141_ 30919AF99D.pak 30919AF99D 30919AF99A 30919AF99B 30919AF99C 30919AF99D BF018535 R8FEF800 20 2.4L DIT CVT without CVTF Air cooler QMBT-0141_ 30919AH13E.pk2 30919AH13E 30919AH13A 30919AH13B 30919AH13C 30919AH13D 30919AH13E 2A8F4837 Q9FEE900 2.4L DIT CVT with CVTF Air cooler QMBT-0141_ 30919AH14E.pk2 30919AH14E 30919AH14A 30919AH14B 30919AH14C 30919AH14D 30919AH14E 43D63952 Q9FEF900 LEGACY 20 2.4L DIT CVT QMBT-0141_ 30919AG75C.pk2 30919AG75C 30919AG75A 30919AG75B 30919AG75C 933736B4 C7FEC740 OUTBACK 20 2.4L DIT CVT QMBT-0141_ 30919AG76C.pk2 30919AG76C 30919AG76A 30919AG76B 30919AG76C CD3719E3 C7FEF740 NOTE: See Appendix A for additional information regarding control module reprogramming. STEP 1-B: Display the following data using the Subaru Select Monitor (SSM4). • Switch the ignition switch to the OFF position, wait 30 seconds then switch back to the ON position. • IMPORTANT: Restart the SSM application after the TEMPORARY PAK file is installed. • Verify the VIN information is correct and select “Diagnosis”. • Select “Target Each System.” • Select “Transmission” then select “Data Monitor”. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 9 of 32 Continued… • If required, click the “Delete All” button to move all items to the left side of the screen before making the selection. Scroll through the select signal list and confirm the “Slip A Information, Slip A Mileage 1, Slip A Mileage 2, and Slip A Mileage 3” items are selected (Blue Highlighted). Once the items are highlighted, click the “Add” button. IMPORTANT: In the case of failed control module communication with SSM after the installation of the temporary PAK file, check and confirm the interface setting is matched to the equipment being used (SDI, DSTI, & DST 010). • Confirm the selections are now transferred to the column on the right side. Continue by clicking the “OK” button. STEP 2A: Determining the CVT chain slip data. • If CVT chain slip has been detected, the “Slip A Information” will display a value higher than zero and the mileage will be recorded in any of the three mileage monitor (Maximum, Minimum, Average) items. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 10 of 32 Continued… • If CVT chain slip is NOT detected, there will be a zero in all four mileage monitor items. • Review the “Slip A Information” value. Select Signal Item Value Result Next step Slip A Information 0 CVT has no recorded slippage Go to STEP 3 1 Review the vehicle repair history Go to STEP 2B STEP 2B: Check the vehicle repair history and confirm if the vehicle has had any previous CVT replacements. NOTE: For the best accuracy, always refer to the “out mileage” of the repair claim history. Has the CVT assembly been previously replaced? YES – Proceed to STEP 2C. NO – Proceed to STEP 4. STEP 2C: Compare the mileage of the latest CVT chain slip checked in STEP 2A with the mileage of the previous CVT assembly replacement. NOTE: The Slip A Mileage values shown within the data will ALWAYS be in miles regardless of what unit is specified. • If the values of “Slip A Mileage 1, 2, and 3” are ALL greater than the mileage of the last CVT replacement , proceed to STEP 4. • If the values of “Slip A Mileage 1, 2, and 3” are NOT ALL greater than the mileage of the last CVT replacement, proceed to STEP 3. STEP 3A: Disconnect the vehicle from the SSM. Remove the 10mm bolt retaining the insulator cover on the right side of the CVT. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 11 of 32 Continued… STEP 3B: CAREFULLY lift the insulation only as far as necessary to expose the plug as shown below. STEP 3C: Install and align the specialty plug / holder (18361AA090) as shown below. • The holder is designed to provide the proper insertion angle for the videoscope camera. • Install the tool by tightening the holder down BY HAND ONLY. • Slightly loosen the holder so the flat section of the tool is facing downward (parallel to the floor). See the example illustrations below. NOTE: NEVER use any wrench, socket, etc. when tightening the plug / holder tool. Teflon Tape can be applied to the holder threads for added stability. STEP 3D: Perform a visual inspection of the chain guide rail. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 12 of 32 Continued… • Make sure the OTC videoscope’s threaded camera tip is screwed on tight prior to usage. Prepare the videoscope camera by measuring and marking approximately 5mm (0.2inch) from where the metal section of the scope tip meets the flexible portion. This section can be marked using a marker or tape. Use the example photos below as a guide. • Identify the top section of the scope camera lens while performing a function test of the videoscope. This can help for the scope view positioning. • Insert the videoscope camera into the plug / holder up to the previously marked line CRITICAL: To prevent any unwanted damage to the videoscope tip, ALWAYS use caution when inserting and removing the videoscope camera into the holder. • Set the magnification of the videoscope to 1.0. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 13 of 32 Continued… STEP 3E: Inspect the position of the lower end of the chain guide rail and the drive pinion shaft. CORRECT GUIDE POSITIONING: Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 14 of 32 Continued… INCORRECT GUIDE POSITIONING 1: INCORRECT GUIDE POSITIONING 2: STEP 3F: Remove the holder (18361AA090). Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 15 of 32 Continued… • Reinstall the original plug with a NEW gasket. Tightening torque: 35 N·m (25.8ft-lbs.) • Install the bolt retaining the insulator cover. Tightening torque: 8 N·m (5.9ft-lbs.) STEP 3G: Using the inspection results from STEP 3E, see the table below to determine the next course of action. Result Next step CORRECT POSITION Proceed to STEP 5 INCORRECT POSITION 1 OR 2 Proceed to STEP 4A STEP 4A: Replace the CVT assembly. The service procedures for CVT assembly replacement remain unchanged. Always refer to the applicable Service Manual and review the full requirements of the repair being performed. The Service Manual procedures contain information critical to performing an effective repair the first time, every time. This includes but is not limited to important SAFETY precautions, proper inspection criteria, necessary special tools, required processes and related one-time-use parts needed for a complete and lasting repair. Refer to STIS: Transmission/Transaxle > CONTINUOUSLY VARIABLE TRANSMISSION > Transmission Assembly > Removal/Installation IMPORTANT NOTE: When replacing the CVT assembly, ALWAYS perform a transmission cooler flush as per the Claims Policies and Procedures Manual using SOA868V9255. STEP 4B: Proceed to STEP 5. STEP 5: Reprogram the TCM with the applicable PAK file. When reprogramming is complete, confirm there are no faults stored in the TCM. WRK-21 FINAL PAK FILES Model MY Specification PAK file name New ECU Part # Old ECU Part # Decryption Keyword New CID Number ASCENT 19 2.4L DIT CVT without CVTF cooler 30919AF98G.pak 30919AF98G 30919AF98F 6CB17BE5 R83EE000 2.4L DIT CVT with CVTF cooler 30919AF99G.pak 30919AF99G 30919AF99F 1648933C R83EF000 20 2.4L DIT CVT without CVTF Air cooler 30919AH13H.pk2 30919AH13H 30919AH13G B3DFD2E3 Q93EE100 2.4L DIT CVT with CVTF Air cooler 30919AH14H.pk2 30919AH14H 30919AH14G B5D0FB3D Q93EF100 LEGACY 20 2.4L DIT CVT 30919AG75D.pk2 30919AG75D 30919AG75C F7DE7793 C7FEC840 OUTBACK 20 2.4L DIT CVT 30919AG76D.pk2 30919AG76D 30919AG76C C084BD9F C7FEF840 NOTE: See Appendix A for additional information regarding control module reprogramming. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 16 of 32 Continued… CAUTION: Confirm the ATF oil temp warning light stays off after all reprogramming has been performed. CALIFORNIA “VEHICLE EMISSION RECALL – PROOF OF CORRECTION” CERTIFICATE The California Air Resources Board and the Department of Motor Vehicles Registration/Recall Program requires that all emission related Recall/Campaign or Service Program repairs be completed before a vehicle registration is renewed. Please provide owners of vehicles registered in the state of California a completed “Vehicle Emission Recall – Proof of Correction” certificate. Vehicle owners should be advised to retain this certificate because the California Department of Motor Vehicles may require they provide proof this service program repair has been completed. Additional certificates are available through normal parts ordering channels using part number MSA6P1301. Quantity 1 = 1 booklet of 50 certificates. SERVICE PROGRAM IDENTIFICATION LABEL: Type or print the necessary information on a Campaign Identification Label. The completed label should be attached to the vehicle’s upper radiator support. Additional labels are available through normal parts ordering channels. The part number is MSA6P1302, which comes as one sheet of 20 labels. WRK-21 WRK-22 Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 17 of 32 Continued… CLAIM REIMBURSEMENT AND ENTRY PROCEDURES: Credit to perform this recall will be based on properly completed repair order information. Retailers may submit claims through Subarunet.com. IMPORTANT: The Calibration Identification number (CID) for the FINAL programming (not the testing file) MUST be noted on the repair order as this information is required for claim submission. Labor Description Labor Operation # Labor Time Fail Code Claim Type TCM REPROGRAMMING, SSM DATA CHECK & VEHICLE INSPECTION WITH VIDEOSCOPE A103-008 1.0 WRK-21 RC TCM REPROGRAMMING, SSM DATA CHECK & CVT ASSEMBLY REPLACEMENT/ CVTF COOLER FLUSH AND PERFORM AT LEARNING PROCEDURE* A103-000 5.3 TCM REPROGRAMMING, SSM DATA CHECK, VEHICLE INSPECTION WITH VIDEOSCOPE & CVT ASSEMBLY REPLACEMENT/ CVTF COOLER FLUSH AND PERFORM AT LEARNING PROCEDURE* A103-010 5.5 *Operations include time for necessary CVTF Cooler flushing. Please refer to 16-42-90R for further information. IMPORTANT REMINDERS: • SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time. • Always check for any open recalls or campaigns anytime a vehicle is in for servicing. • Always refer to STIS for the latest service information before performing any repairs. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 18 of 32 Continued… Appendix A PRECAUTIONS: Confirm the PC being use for reprogramming is connected to a known good power source. Turn off any screen saver settings. Make sure the PC is not in power saving mode and is set to the normal power mode. Always inspect the DST-I/DST-010 and PC cables prior to programing. Confirm the cables are CORRECT and there is no exposed wiring, corroded connections, or loose fitment. See the example images below. STEP A-1: Subaru of America, Inc. (SOA) highly recommends connecting either the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-100 Diagnostic Battery Charger to the vehicle and utilizing the Power Supply Mode feature to supply a stable 13.5 volts anytime a vehicle control module is being reprogrammed. Once the Midtronics charger is connected to the vehicle, if the battery is fully charged, it takes less than three (3) minutes to boot-up the charger, select the Power Supply Mode, and have the battery voltage stabilized and ready for reprogramming. NOTES: • For instructions on using the power supply mode, reference the applicable User Manual for the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR8-1100 Diagnostic Battery Charger on STIS. • Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all switched OFF before setting up the charger for Power Supply Mode. • Select the correct battery type (Flooded, EFB, Gel, AGM, or AGM Spiral). • Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have different CCA ratings. Always confirm the battery’s CCA rating before proceeding. • If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to 13.5 volts. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 19 of 32 Continued… • DO NOT connect the DST-I, DST 010, or SDI until the Power Supply mode function has completed its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on the display. • Once Power Supply Mode reaches a steady 13.5 volts, connect the DST-I, DST 010, or SDI to the OBD connector and proceed with initiating the normal FlashWrite reprogramming process. • Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage rises beyond 14V while programming is in process, the procedure will abort. This can indicate a need to test or charge the vehicle battery before any further attempt at programming is made. VERY IMPORTANT: This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY. It does not apply to any other brand / type of “generic” battery charger whatsoever. ONLY the DCA-8000 and the GR8- 1100 and their Power Supply Mode feature have been tested and approved by SOA. REMINDER: If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge it fully using the DCA-8000 or GR8-1100 before proceeding to reprogram the vehicle using the Power Supply Mode. NOTES: • Control module failures resulting from battery discharge during reprogramming are not a matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose per the procedure outlined in the applicable Service Manual. • IMPORTANT: The FINAL Calibration Identification number (CID) for the FINAL programming (not the testing file) MUST be noted on the repair order as this information is required for claim submission. • The testing and FINAL pack file listings provided in this bulletin are the latest available at the time of publishing. Updates are often released thereafter without revision to the original bulletin. For this reason, it is critical to always have the latest version of Select Monitor software installed on your system. You can confirm if a later version is available by entering the CID listed in this bulletin into FlashWrite. If a newer CID is shown as available in FlashWrite, reprogram using that file. • AT Learning Procedure is ONLY required with CVT replacement. STEP A-2: (ONLY IF THE CVT HAS BEEN REPLACED) Using the SSM4, clear the AT Learning Data using the following procedure: • Start > Diagnosis > Vehicle Selection > Each System > Transmission > Work Support > Clear AT Learning Data. • Click “YES” and when “Execute Clear AT Learning” is displayed, click “YES” again. • Turn the ignition OFF, wait at LEAST 30 seconds then turn the ignition back ON. At this point, the AT Temp light will start blinking; 4 times in 2 seconds to signify the Clear AT Learning procedure has completed successfully. If the AT Temp light does not flash as described, repeat Step 2 again from the beginning. Bulletin Number: WRK-21_22R; Revised: 03/15/23 Page 20 of 32 Continued… Error Code Information: In the event of an unsuccessful reprogramming attempt, an error code may be displayed. The table below lists the description of the codes and the correct course of action if encountered. No Error Code Content Procedure 1 00000001 Parameter Error Confirm the software version has been updated. If the software has been updated successfully, ignore this error code, and clear the fault memory. If not, make ONE attempt to reprogram. 2 00000009 Communication Error Turn ignition switch off and wait 10 seconds. Turn on the ignition switch. Resume the reprogramming work without exiting the FlashWrite2 at password entry screen. 3 00000281 Star Download Error 4 00000282 Data Transfer Error 5 00000283 Transfer Complete Error 6 00000284 Checksum Error 7 00000270 Unit Confirmation Error Confirm the reprogramming precautions & requirements are fully meet. If there is no problem, turn ignition switch off and wait for 10 seconds. Turn on the ignition switch. Exit FlashWrite 2 and start it from the beginning. URGENT IMPORTANT SAFETY RECALL This notice applies to the VIN below Subaru of America, Inc PO Box 9103 Camden, NJ 08101-9877 844-373-6614 www.subaru.com Subaru Safety Recall WRK-21 NHTSA Recall ID 21V-955 February 2022 Interim Notification Dear Subaru Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subaru of America, Inc. (Subaru) has decided that a defect, which relates to motor vehicle safety, exists in certain 2019-2020 model year Ascent vehicles and certain 2020 Legacy and Outback vehicles. You received this notice because our records indicate that you currently own one of these vehicles. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WHAT YOU SHOULD DO Subaru is in the process of acquiring the tools and reprogramming files necessary to perform this repair and expects to have a sufficient supply available in May. Once the repair is available, Subaru will contact you again by mail advising you to proceed with scheduling an appointment with your Subaru retailer (dealer). WHAT SUBARU WILL DO Once the tools and reprogramming files are available to perform this repair, your Subaru retailer will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to you. Continued… OWNER INFORMATION Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days. If you have moved or sold your vehicle, please update this information online at www.subaru.com, select ‘Customer Support,’ then select ‘Address Update’ or ‘Ownership Update’ from the “Quick Links” menu. IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge for the same repair. Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below. Subaru of America, Inc. Customer-Retailer Services Department, Attention: WRK-21 Recall P.O. Box 9103, Camden, NJ 08101-9877 Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this process to be completed. IF YOU NEED FURTHER ASSISTANCE: To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’ For additional information, please go to: http://www.wrk21.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to www.subaru.com and select “Customer Support” • By telephone: 1-844-373-6614 Monday through Friday between 8:00 a.m. and 7:00 p.m. ET • By U.S. Postal mail: Write us at Subaru of America, Inc. Attn: Customer-Retailer Services Department P.O. Box 9103, Camden, NJ 08101-9877 To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot. gov/nhtsa/subscriptions. Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. Continued… You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327- 4236 (TTY: 1-800-424-9153) or go to http://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy your vehicle without charge within a reasonable amount of time. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment once you are notified that the remedy is available. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION Continued… Dear Subaru Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subaru of America, Inc. (Subaru) has decided that a defect, which relates to motor vehicle safety, exists in certain 2019-2020 model year Ascent vehicles and certain 2020 Legacy and Outback vehicles. You received this notice because our records indicate that you currently own one of these vehicles. This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was complete. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WHAT YOU SHOULD DO As mentioned above, vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Subaru is in the process of acquiring the tools and reprogramming files necessary to perform this repair and expects to have a sufficient supply available in May. Once the repair is available, Subaru will contact you again by mail advising you to proceed with scheduling an appointment with your Subaru retailer (dealer). WHAT SUBARU WILL DO Once the tools and reprogramming files are available to perform this repair, your Subaru retailer will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to you. URGENT IMPORTANT SAFETY RECALL This notice applies to the VIN below Subaru of America, Inc PO Box 9103 Camden, NJ 08101-9877 844-373-6614 www.subaru.com Subaru Safety Recall WRK-21 NHTSA Recall ID 21V-955 February 2022 Interim Notification Continued… OWNER INFORMATION Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days. If you have moved or sold your vehicle, please update this information online at www.subaru.com, select ‘Customer Support,’ then select ‘Address Update’ or ‘Ownership Update’ from the “Quick Links” menu. IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge for the same repair. Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below. Subaru of America, Inc. Customer-Retailer Services Department, Attention: WRK-21 Recall P.O. Box 9103, Camden, NJ 08101-9877 Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this process to be completed. IF YOU NEED FURTHER ASSISTANCE: To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’ For additional information, please go to: http://www.wrk21.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to www.subaru.com and select “Customer Support” • By telephone: 1-844-373-6614 Monday through Friday between 8:00 a.m. and 7:00 p.m. ET • By U.S. Postal mail: Write us at Subaru of America, Inc. Attn: Customer-Retailer Services Department P.O. Box 9103, Camden, NJ 08101-9877 To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot. gov/nhtsa/subscriptions. Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. Continued… You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327- 4236 (TTY: 1-800-424-9153) or go to http://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy your vehicle without charge within a reasonable amount of time. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment once you are notified that the remedy is available. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION Continued… Dear Subaru Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subaru of America, Inc. (Subaru) has decided that a defect, which relates to motor vehicle safety, exists in certain 2019-2020 model year Ascent vehicles and certain 2020 Legacy and Outback vehicles. You previously received a letter informing you of this recall, stating that the tools and reprogramming files necessary to perform this repair were not yet available. This letter is to inform you that the tools and reprogramming files are now available. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WHAT YOU SHOULD DO Please contact your Subaru retailer (dealer) immediately for an appointment to have this repair performed, at no cost to you. WHAT SUBARU WILL DO Your Subaru retailer will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to you. Additionally, in cases where the CVT transmission assembly is not replaced as part of this recall, Subaru will extend the Powertrain Limited Warranty as it applies to the CVT specific to the chain slip condition. The extended coverage period will run from the vehicle’s original warranty start date and end after ten (10) years or one hundred thousand (100,000) miles, whichever comes first. The extension will be applied only after the recall repair is completed and will cover replacement of a CVT assembly failed as a result of CVT chain slip only once during the 10 years / 100,000 miles parameters of this extension. URGENT IMPORTANT SAFETY RECALL This notice applies to the VIN below Subaru of America, Inc PO Box 9103 Camden, NJ 08101-9877 844-373-6614 www.subaru.com Subaru Safety Recall WRK-21 NHTSA Recall ID 21V-955 September 2022 Continued… HOW LONG WILL THE REPAIR TAKE? The time required for this repair will vary depending on the services required. The repair time will range from approximately one hour up to approximately six hours if the transmission needs to be replaced. Your retailer can provide you with a better estimate of the overall time for this service visit, as it may be necessary to leave your vehicle for a longer period of time on the day of your scheduled appointment to allow your Subaru retailer flexibility in scheduling. For your convenience, your retailer may provide you with a loaner or rental vehicle, at no cost to you, until the repair is complete. OWNER INFORMATION Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days. If you have moved or sold your vehicle, please go to https://www.subaru.com/support/customer-support. html to send us your information. CALIFORNIA REGISTERED OWNERS The California Air Resources Board requires that emission related campaigns be completed prior to California’s vehicle registration renewal process; without this repair, you will not be able to register your vehicle during your next annual registration. Upon completion of this campaign, your California dealer will complete and provide you a “Proof of Correction Certificate.” If required, present the certificate to the California Department of Motor Vehicles (the “DMV”) when renewing your California registration as proof of campaign completion. If the DMV does not request the certificate, we recommend that you keep it for your records. In addition, the State of California requires that every vehicle must pass an emission test (SMOG Check) every two years and before it is sold. Without the repair we are providing at no charge, your vehicle may not pass this test. IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge for the same repair. Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below. Subaru of America, Inc. Customer Advocacy Department, Attention: WRK-21 Recall P.O. Box 9103, Camden, NJ 08101-9877 Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this process to be completed. Continued… IF YOU NEED FURTHER ASSISTANCE: To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’ For additional information, please go to: http://www.wrk21.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to www.subaru.com and select “Customer Support” • By telephone: 1-844-373-6614 Monday through Friday between 8:00 a.m. and 7:00 p.m. ET • By U.S. Postal mail: Write us at Subaru of America, Inc. Attn: Customer Advocacy Department P.O. Box 9103, Camden, NJ 08101-9877 To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot. gov/nhtsa/subscriptions. Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327- 4236 (TTY: 1-800-424-9153) or go to http://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy your vehicle without charge within a reasonable amount of time. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment to have this repair performed. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION Continued… Dear Subaru Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subaru of America, Inc. (Subaru) has decided that a defect, which relates to motor vehicle safety, exists in certain 2019-2020 model year Ascent vehicles and certain 2020 Legacy and Outback vehicles. You previously received a letter informing you of this recall, stating that the tools and reprogramming files necessary to perform this repair were not yet available. This letter is to inform you that the tools and reprogramming files are now available. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WHAT YOU SHOULD DO This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Please contact your Subaru retailer (dealer) immediately for an appointment to have this repair performed, at no cost to you. WHAT SUBARU WILL DO Your Subaru retailer will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to you. Additionally, in cases where the CVT transmission assembly is not replaced as part of this recall, Subaru will extend the Powertrain Limited Warranty as it applies to the CVT specific to the chain slip condition. The extended coverage period will run from the vehicle’s original warranty start date and end after ten (10) years or one hundred thousand (100,000) miles, whichever comes first. The extension will be applied only after the recall repair is completed and will cover replacement of a CVT assembly failed as a result of CVT chain slip only once during the 10 years / 100,000 miles parameters of this extension. URGENT IMPORTANT SAFETY RECALL This notice applies to the VIN below Subaru of America, Inc PO Box 9103 Camden, NJ 08101-9877 844-373-6614 www.subaru.com Subaru Safety Recall WRK-21 NHTSA Recall ID 21V-955 August 2022 Continued… HOW LONG WILL THE REPAIR TAKE? The time required for this repair will vary depending on the services required. The repair time will range from approximately one hour up to approximately six hours if the transmission needs to be replaced. Your retailer can provide you with a better estimate of the overall time for this service visit, as it may be necessary to leave your vehicle for a longer period of time on the day of your scheduled appointment to allow your Subaru retailer flexibility in scheduling. For your convenience, your retailer may provide you with a loaner or rental vehicle, at no cost to you, until the repair is complete. OWNER INFORMATION Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days. If you have moved or sold your vehicle, please go to https://www.subaru.com/support/customer-support. html to send us your information. CALIFORNIA REGISTERED OWNERS The California Air Resources Board requires that emission related campaigns be completed prior to California’s vehicle registration renewal process; without this repair, you will not be able to register your vehicle during your next annual registration. Upon completion of this campaign, your California dealer will complete and provide you a “Proof of Correction Certificate.” If required, present the certificate to the California Department of Motor Vehicles (the “DMV”) when renewing your California registration as proof of campaign completion. If the DMV does not request the certificate, we recommend that you keep it for your records. In addition, the State of California requires that every vehicle must pass an emission test (SMOG Check) every two years and before it is sold. Without the repair we are providing at no charge, your vehicle may not pass this test. IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge for the same repair. Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below. Subaru of America, Inc. Customer Advocacy Department, Attention: WRK-21 Recall P.O. Box 9103, Camden, NJ 08101-9877 Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this process to be completed. Continued… IF YOU NEED FURTHER ASSISTANCE: To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’ For additional information, please go to: http://www.wrk21.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to www.subaru.com and select “Customer Support” • By telephone: 1-844-373-6614 Monday through Friday between 8:00 a.m. and 7:00 p.m. ET • By U.S. Postal mail: Write us at Subaru of America, Inc. Attn: Customer Advocacy Department P.O. Box 9103, Camden, NJ 08101-9877 To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot. gov/nhtsa/subscriptions. Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327- 4236 (TTY: 1-800-424-9153) or go to http://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy your vehicle without charge within a reasonable amount of time. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment to have this repair performed. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION

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Subaru of America, Inc. P.O. Box 9103 Camden, NJ 08101-9877 844-373-6614 www.subaru.com Dear Subaru Owner: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subaru of America, Inc. (Subaru) has decided that a defect, which relates to motor vehicle safety, exists in certain 2019-2020 model year Ascent vehicles and certain 2020 Legacy and Outback vehicles. You previously received a letter informing you of this recall, stating that the tools and reprogramming files necessary to perform this repair were not yet available. This letter is to inform you that the tools and reprogramming files are now available. DESCRIPTION OF THE DEFECT AND SAFETY RISK Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. WHAT YOU SHOULD DO This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Please contact your Subaru retailer (dealer) immediately for an appointment to have this repair performed, at no cost to you. WHAT SUBARU WILL DO Your Subaru retailer will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If the vehicle is confirmed to have experienced drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. All remedy repairs necessary will be completed at no cost to you. Additionally, in cases where the CVT transmission assembly is not replaced as part of this recall, Subaru will extend the Powertrain Limited Warranty as it applies to the CVT specific to the chain slip condition. The extended coverage period will run from the vehicle’s original warranty start date and end after ten (10) years or one hundred thousand (100,000) miles, whichever comes first. The extension will be applied only after the recall repair is completed and will cover replacement of a CVT assembly failed as a result of CVT chain slip only once during the 10 years / 100,000 miles parameters of this extension. HOW LONG WILL THE REPAIR TAKE? The time required for this repair will vary depending on the services required. The repair time will range from approximately one hour up to approximately six hours if the transmission needs to be replaced. Your retailer can provide you with a better estimate of the overall time for this service visit, as it may be necessary to leave your vehicle for a longer period of time on the day of your scheduled appointment to allow your Subaru retailer flexibility in scheduling. For your convenience, your retailer may provide you with a loaner or rental vehicle, at no cost to you, until the repair is complete. OWNER INFORMATION Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days. URGENT IMPORTANT SAFETY RECALL This notice applies to the VIN below Subaru Safety Recall WRK-21 NHTSA Recall ID 21V-955 August 2022 A subsidiary of SUBARU CORPORATION If you have moved or sold your vehicle, please go to https://www.subaru.com/support/customer-support.html to send us your information. CALIFORNIA REGISTERED OWNERS The California Air Resources Board requires that emission related campaigns be completed prior to California’s vehicle registration renewal process; without this repair, you will not be able to register your vehicle during your next annual registration. Upon completion of this campaign, your California dealer will complete and provide you a “Proof of Correction Certificate.” If required, present the certificate to the California Department of Motor Vehicles (the “DMV”) when renewing your California registration as proof of campaign completion. If the DMV does not request the certificate, we recommend that you keep it for your records. In addition, the State of California requires that every vehicle must pass an emission test (SMOG Check) every two years and before it is sold. Without the repair we are providing at no charge, your vehicle may not pass this test. IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge for the same repair. Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below. Subaru of America, Inc. Customer Advocacy Department, Attention: WRK-21 Recall P.O. Box 9103, Camden, NJ 08101-9877 Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this process to be completed. IF YOU NEED FURTHER ASSISTANCE: To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’ For additional information, please go to: http://www.wrk21.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to www.subaru.com and select “Customer Support” • By telephone: 1-844-373-6614 Monday through Friday between 8:00 a.m. and 7:00 p.m. ET • By U.S. Postal mail: Write us at Subaru of America, Inc. Attn: Customer Advocacy Department P.O. Box 9103, Camden, NJ 08101-9877 To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot.gov/ nhtsa/subscriptions. Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153) or go to http://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy your vehicle without charge within a reasonable amount of time. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment to have this repair performed. Sincerely, Subaru of America, Inc.

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: June 20, 2022 UPDATE Subaru Safety & Emissions Recall: WRK-21 – CVT Chain Guide Breakage Please refer to the highlighted updates in the following sections of this announcement: • Affected Vehicles • Service, Parts, and Claim Instructions • Owner Notification Background Subaru of America, Inc. (Subaru) is initiating this safety and emissions Recall for certain 2019-2020 model year Ascent vehicles, 2020 model year turbo Legacy vehicles, and 2020 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break. Description of the Defect and Safety Risk Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. Affected Vehicles The number of U.S. vehicles included in this recall is 198,255. Not all vehicles in the production date ranges listed above may be included in this recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com, which is available. On July 5th, the VIN status for WRK-21 will display as “Open – Limited Parts Available” to allow repairs to begin prior to owner notification. Note: This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Once the WRK-21 tools and PAK files are available, any open WUV-07 coverage will be expired. WUV-07 repairs must continue until the WRK-21 recall repair is available. Model Year Carline Production date range 2019-2020 Ascent February 22, 2018 – July 20, 2020 2020 Legacy (turbo models) July 15, 2019 – August 13, 2020 2020 Outback (turbo models) July 15, 2019 – August 13, 2020 Service, Parts, and Claim Instructions On July 5th, the special service tools and reprogramming (PAK) files will be available, and the WRK-21 Product Campaign Bulletin will be published on STIS with detailed service and claim instructions. Special tools to complete this recall will be shipped to each retailer at no charge: A new tool kit, consisting of an OTC part number 16-3880X Video Scope and a special holder (guide) used to align the scope’s camera portion, will be required to support this recall. This tool kit will be shipped directly to each Subaru retailer as part of their normal stock order beginning on June 20, 2022. Each retailer will be supplied with one of these tool kits at no charge. Please store the tool kit securely and refrain from using it until the WRK-21 Product Campaign Bulletin is released to STIS on Tuesday, July 5th. Once the bulletin is released, please be sure that your technicians familiarize themselves with the entire work procedure prior to performing any repairs. In the meantime, it is strongly recommended that the technicians read the detailed instruction manual included in the kit completely to become familiar with operation of the tool. Proper usage of this equipment is important to avoid scope damage. Tool Number Description SOA635170 OTC 16-3880X Video Scope Kit Images of the tool kit contents and holder are shown below. Direct additional inquiries to Subaru Service Operations at: serviceoperations@subaru.com. CVTF-LV fluid will be shipped to each retailer to support any necessary CVT replacements: Beginning on June 20, 2022, SOA Parts will enter special orders into the system for each retailer to automatically receive two 5-gallon pails of the Genuine Subaru Certified CVTF-LV fluid (part number SOA748V0300) in preparation for this recall. This will be enough fluid to cover six transmission replacements (three transmission replacements per 5-gallon pail), if necessary. For any new orders for CVTF-LV fluid, retailers will still be required to call the Parts Information Coordinators (PICs) to have the fluid released. Please have the VIN number(s) of the affected vehicles available when calling. For any questions or concerns regarding this, please contact the Parts Information Coordinators (PICs) at 1-866-782-2782, prompt #1, or your DPSM. Owner Notification Interim owner notification letters were sent by first class mail on February 7, 2022 announcing this recall as required by federal law, as Subaru needed to acquire the special tools, parts, and reprogramming (PAK) files required for this recall. Affected vehicle owners will be notified that the remedy is available by first class mail, in phases beginning in August and throughout a two month period. Retailer Responsibility Please be advised that it is a violation of Federal law for a dealer to deliver a new motor vehicle covered by a recall under a sale or lease until the defect is remedied. Therefore, any Authorized Subaru Retailer failing to perform the applicable service procedures to correct all affected vehicles in their inventory prior to the vehicle being placed in service may be subject to civil penalties of up to $21,000 per violation (i.e., for each vehicle), as provided in 49 CFR §578.6 and will also be in breach of the Subaru Dealer Agreement. Any vehicles listed in any recall or campaign that are in retailer stock must be: • Immediately identified • Tagged or otherwise marked to prevent their delivery or use prior to repair • Repaired in accordance with the repair procedures outlined in the Bulletin Retailers are to promptly perform the applicable service procedures, to correct all affected vehicles in their inventory (new, used, demo & SSLP). Additionally, whenever a vehicle subject to this recall is taken into inventory or in for service, necessary steps should be taken to ensure the repair has been made before selling or releasing the vehicle.

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Subarunet Announcement To: All Subaru Retailers ATTENTION: Subaru Service Manager, Warranty Managers, Shop Foremen, and Technicians From: Subaru of America, Inc. – Service Operations Department Date: July 29, 2022 Re: WRK-21 CVT Chain Guide Breakage Recall – REQUIRED Information for WRK-21 Service Claims •The WRK-21 Chain Guide Breakage Recall requires retailers to retain certain information in the form ofdata and photos relating to this campaign •The table below outlines the information required to be retained by the retailer for all WRK-21 service •This information is also found in the WRK-21 technical service bulletin. •Claims for CVT replacement require all retained information to be ATTACHED to the claim. •Claims not adhering to these procedures will be subject to REJECTION or DEBIT.

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To: From: Date: Re: All Subaru Retailers Subaru of America, Inc. – Service Operations Department June 22, 2022 UPDATE- WRK-21 rental pre-authorization In February, we posted a Subarunet announcement to assist retailers with customer communications and rental as it relates to the WRK-21 CVT Chain Guide Breakage. At that time, we provided you with a pre-authorization process for customers expressing concerns about driving their vehicle with the open WRK-21 safety recall. With the WRK-21 recall shifting into an Open- Limited Parts availability status on 7/5, retailers will have the tooling and PAK files needed to begin performing this recall prior to customer notification. We will be sending all pre-authorizations back to the retailers. As you complete the WRK-21 recalls on these vehicles, please update the authorization with the following information: -Attach the final rental bill(s) to the authorization. We should clearly be able to identify the date the customer was put into the rental and the date the customer returned the rental.-The rental only labor operation should be removed from the existing pre-authorization and replaced with the appropriate labor operation for the recall repair performed.-Add any parts used in the recall repair to the authorization-Update the rental amount reflect the final rental amount. Once this is done, please submit the authorization. Any authorization that does not include the information above will be sent back requesting the missing information. It is imperative that your authorizations are approved and promoted to your recall claim. Submission of a WRK-21 recall claim with the extended rental without the approved authorization, will cause your recall claim will error. Should you have any questions, please contact the Claims Team at 866-782-2782.

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Subarunet Announcement TO: All Subaru Retailer Service Departments FROM: SOA Service & Quality Dept. ATTENTION: Subaru Service Manager, Shop Foremen, and Technicians FROM: Subaru of America, Inc. DATE: July 29, 2022 SUBJECT: TCM Damage During WRK-21 Programming Recently following the release of the WRK-21 CVT Chain Guide Breakage, SOA’s Techline started to receive some retailer inquiries regarding TCMs not accepting the testing/ temporary pak file or the final pak file and then failing to communicate. Investigation of returned TCMs have found this to be a result of a few different scenarios including: •TCM damage due to use of a standard battery charger or other unspecified batterymaintainer, not the required DCA-8000 or GR-8 in (stabilized) power supply mode. NOTE: Use of power supply mode is reported to the BMIS website and can beconfirmed by retailer management, Distributor management and SOA. •TCM damage resulting from poor DCA-8000 battery connection due to corroded orworn charger connections. See below for replacement part information. •TCM damage due to connection failure resulting from damaged / failed USB port on theSDS Notebook or DSTi, incorrect (unshielded) wrong specification cable used betweenSDS notebook and DSTi, and/ or failed OBD cable between DSTi and vehicle OBD port.See below for replacement part information. All retailers are strongly encouraged to inspect and confirm the condition of all programming related equipment (DCA-8000, SDS Notebook, DSTi, Related Cables and Connections) prior to completing additional WRK or other control module updates to reduce the possibility of control unit damage. Additionally ensure all technicians performing WRK-21 have reviewed and are familiar with all procedures as outlined in the recall bulletin. Retailers are cautioned, if a TCM is damaged because of faulty equipment or incorrect procedures followed as part of the WRK programming update, the resulting debit would include BOTH the costs related to the TCM as well as the CVT assembly since damaging the TCM would require an automatic replacement of the CVT since the slip mileages cannot be retrieved. Need Replacement Parts: DCA-8000 – See https://www.subaruretailersolutions.com/ SDS Notebook and DSTi- See https://www.subarunet.com/home/content/1306 Questions may be directed to SOA’s Technical Helpline (Reprogramming Questions Only Please) or your District Service & Quality Manager (DSQM)

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Subarunet Announcement To: All Subaru Retailers ATTENTION: Subaru Service Manager, Warranty Managers, Shop Foremen, and Technicians From: Subaru of America, Inc. – Service Operations Department Date: July 29, 2022 Re: WRK-21 CVT Chain Guide Breakage Recall – VIDEOSCOPE UPDATES The purpose of this communication is to assist retailers with questions or concerns regarding the OTC 16-3880X videoscopes, including repairs and replacement procedures. Videoscope repair and replacement: If retailers are experiencing issues with their OTC 16-3880X videoscope or the scope has been damaged while using the product consistent with the service procedure, please contact your District Service Quality Manager, DSQM (formerly FSE). 1.The retailer should contact the DSQM regarding issues with the videoscope. 2.If the DSQM deems the unit needs repair, they will send, or instruct the retailer to send, theinoperative or damaged videoscope to the following contact, and provide a tracking number: Subaru of America, Inc. WRK-21 Videoscope Service One Subaru Drive Camden, NJ 08103 ATTN: Service Operations Department 3.The DSQM will requisition a replacement videoscope for the retailer. SOA will repair the OTC 16-3880X videoscope or arrange for shipment of an approved alternate, at no cost to the retailerfor the duration of the manufacturer’s one year warranty period. 4.SOA will ship the repaired or replacement videoscope back to the retailer in a timely manner. Due to the ongoing industry supply chain delays, we believe this is the most efficient way to expedite this exchange process, at this time. Additional Videoscopes: For retailers needing additional videoscopes to meet their business needs. Subaru of America has approved the use of additional products that meet the criteria for this service procedure. These can be purchased by the retailer on the open market through third party sellers, at the Subaru retailer’s expense. SOA will not be responsible for warranty issues concerning these purchases. Warranty issues for these purchases should be handled between the Subaru retailer and the seller. •Autel MV400-5.5 w/5.5mm dia. camera. (The threaded tip end must be removed to fit through theguide-holder) •Depstech DS300 w/5.5mm dia. camera. (The threaded tip end must be removed to fit through theguide-holder) •Depstech DS350 w/5.5mm dia. camera. (The threaded tip end must be removed to fit through theguide-holder)

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: August 5, 2022 UPDATE Subaru Safety & Emissions Recall: WRK-21 – CVT Chain Guide Breakage Please refer to the highlighted updates in the following sections of this announcement: • Affected Vehicles • Owner Notification Background Subaru of America, Inc. (Subaru) is initiating this safety and emissions Recall for certain 2019-2020 model year Ascent vehicles, 2020 model year turbo Legacy vehicles, and 2020 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break. Description of the Defect and Safety Risk Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. Affected Vehicles The number of U.S. vehicles included in this recall is 198,255. Not all vehicles in the production date ranges listed above may be included in this recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com, which is available. Note: This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Any open WUV-07 coverage has been expired. The VIN status for WRK-21 will display as “Open – Limited Parts Available” to allow repairs to begin prior to owner notification. As the owner notification letters are released in phases, the status will be updated to “Open” at a VIN-level basis. Model Year Carline Production date range 2019-2020 Ascent February 22, 2018 – July 20, 2020 2020 Legacy (turbo models) July 15, 2019 – August 13, 2020 2020 Outback (turbo models) July 15, 2019 – August 13, 2020 Owner Notification Interim owner notification letters were sent by first class mail on February 7, 2022 announcing this recall as required by federal law, as Subaru needed to acquire the special tools, parts, and reprogramming (PAK) files required for this recall. Affected vehicle owners will be notified that the remedy is available by first class mail, in phases, beginning in August and throughout a two month period: • The first phase will be mailed on August 19, to approximately 77,000 owners of affected 2019 model year Ascent vehicles which were previously affected by the WUV07 recall. The WRK21 VIN status of these vehicles will be changed to ‘Open’ on August 22, to allow online scheduling and trigger the usual push notifications (MySubaru, in-vehicle, Care Connect communications and newsletter inclusion.) • Retailers will be advised when the remaining phase(s) are scheduled to mail. As additional owner notification letters are released, the WRK-21 status will be updated to ‘Open’ at a VIN-level basis. Service, Parts, and Claim Instructions Please refer to the WRK-21 Product Campaign Bulletin on STIS for detailed service and claim instructions. Retailer Responsibility Please be advised that it is a violation of Federal law for a dealer to deliver a new motor vehicle covered by a recall under a sale or lease until the defect is remedied. Therefore, any Authorized Subaru Retailer failing to perform the applicable service procedures to correct all affected vehicles in their inventory prior to the vehicle being placed in service may be subject to civil penalties of up to $22,423 per violation (i.e., for each vehicle), as provided in 49 CFR §578.6 and will also be in breach of the Subaru Dealer Agreement. Any vehicles listed in any recall or campaign that are in retailer stock must be: • Immediately identified • Tagged or otherwise marked to prevent their delivery or use prior to repair • Repaired in accordance with the repair procedures outlined in the Bulletin Retailers are to promptly perform the applicable service procedures, to correct all affected vehicles in their inventory (new, used, demo & SSLP). Additionally, whenever a vehicle subject to this recall is taken into inventory or in for service, necessary steps should be taken to ensure the repair has been made before selling or releasing the vehicle.

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: September 20, 2022 UPDATE Subaru Safety & Emissions Recall: WRK-21 – CVT Chain Guide Breakage All remaining owner notification letters will be mailed on September 30. The WRK21 recall status of those VINs will be changed to ‘Open’ on October 3, to allow online scheduling and trigger the usual push notifications (MySubaru, in-vehicle, Care Connect communications and newsletter inclusion). Background Subaru of America, Inc. (Subaru) is initiating this safety and emissions Recall for certain 2019-2020 model year Ascent vehicles, 2020 model year turbo Legacy vehicles, and 2020 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break. Description of the Defect and Safety Risk Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. Affected Vehicles The number of U.S. vehicles included in this recall is 198,255. Not all vehicles in the production date ranges listed above may be included in this recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com, which is available. Note: This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Any open WUV-07 coverage has been expired. The VIN status for WRK-21 will display as “Open – Limited Parts Available” to allow repairs to begin prior to owner notification. As the owner notification letters are released in phases, the status will be updated to “Open” at a VIN-level basis. Model Year Carline Production date range 2019-2020 Ascent February 22, 2018 – July 20, 2020 2020 Legacy (turbo models) July 15, 2019 – August 13, 2020 2020 Outback (turbo models) July 15, 2019 – August 13, 2020 Owner Notification Interim owner notification letters were sent by first class mail on February 7, 2022 announcing this recall as required by federal law, as Subaru needed to acquire the special tools, parts, and reprogramming (PAK) files required for this recall. Affected vehicle owners will be notified that the remedy is available by first class mail, in phases, beginning in August and throughout a two month period: • The first phase will be mailed on August 19, to approximately 77,000 owners of affected 2019 model year Ascent vehicles which were previously affected by the WUV07 recall. The WRK21 VIN status of these vehicles will be changed to ‘Open’ on August 22, to allow online scheduling and trigger the usual push notifications (MySubaru, in-vehicle, Care Connect communications and newsletter inclusion). • The final phase will be mailed on September 30, to all remaining owners of vehicles affected by this recall. The WRK21 VIN status will be changed to ‘Open’ on October 3, to allow online scheduling and trigger the usual push notifications (MySubaru, in-vehicle, Care Connect communications and newsletter inclusion). Service, Parts, and Claim Instructions Please refer to the WRK-21 Product Campaign Bulletin on STIS for detailed service and claim instructions. Retailer Responsibility Please be advised that it is a violation of Federal law for a dealer to deliver a new motor vehicle covered by a recall under a sale or lease until the defect is remedied. Therefore, any Authorized Subaru Retailer failing to perform the applicable service procedures to correct all affected vehicles in their inventory prior to the vehicle being placed in service may be subject to civil penalties of up to $22,423 per violation (i.e., for each vehicle), as provided in 49 CFR §578.6 and will also be in breach of the Subaru Dealer Agreement. Any vehicles listed in any recall or campaign that are in retailer stock must be: • Immediately identified • Tagged or otherwise marked to prevent their delivery or use prior to repair • Repaired in accordance with the repair procedures outlined in the Bulletin Retailers are to promptly perform the applicable service procedures, to correct all affected vehicles in their inventory (new, used, demo & SSLP). Additionally, whenever a vehicle subject to this recall is taken into inventory or in for service, necessary steps should be taken to ensure the repair has been made before selling or releasing the vehicle.

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To: From: Date: Re: All Subaru Retailers Subaru of America, Inc. – Service Operations Department June 22, 2022 UPDATE- WRK-21 rental pre-authorization In February, we posted a Subarunet announcement to assist retailers with customer communications and rental as it relates to the WRK-21 CVT Chain Guide Breakage. At that time, we provided you with a pre-authorization process for customers expressing concerns about driving their vehicle with the open WRK-21 safety recall. With the WRK-21 recall shifting into an Open- Limited Parts availability status on 7/5, retailers will have the tooling and PAK files needed to begin performing this recall prior to customer notification. We will be sending all pre-authorizations back to the retailers. As you complete the WRK-21 recalls on these vehicles, please update the authorization with the following information: -Attach the final rental bill(s) to the authorization. We should clearly be able to identify the date the customer was put into the rental and the date the customer returned the rental.-The rental only labor operation should be removed from the existing pre-authorization and replaced with the appropriate labor operation for the recall repair performed.-Add any parts used in the recall repair to the authorization-Update the rental amount reflect the final rental amount. Once this is done, please submit the authorization. Any authorization that does not include the information above will be sent back requesting the missing information. It is imperative that your authorizations are approved and promoted to your recall claim. Submission of a WRK-21 recall claim with the extended rental without the approved authorization, will cause your recall claim will error. Should you have any questions, please contact the Claims Team at 866-782-2782.

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: October 24, 2022 UPDATE: Subaru Safety & Emissions Recall: WRK-21 – CVT Chain Guide Breakage Retailer Responsibility SOA Claims department continue to receive WRK-21 claims without the required documentation for CVT replacements. As a reminder, any claim not adhering to the requirements stated on page 5 of the WRK-21 Product Campaign Bulletin are subject to rejection or debit. Starting October 24, all WRK-21 retailer CVT replacement claims that are missing the required attachments (SSM data, scope images, and serial number photos) will automatically show the claim as Awaiting Retailer. This was a manual process previously. The retailer will need to respond by attaching the required information to the claim before the claim can be paid. No QMR is required for this service. The required information should be attached to the claim for payment, not a QMR. Please continue to follow the procedures in the latest WRK-21 Product Campaign Bulletin. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION

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a subsidiary of Subaru Corporation To: All Subaru Retailers From: Subaru of America, Inc. – Service Department Date: November 16, 2022 Subject: WRK-21 Videoscope Service / Replacement Procedure Change This communication announces a new procedure for retailers to follow in the event their WRK-21 videoscope requires service or replacement. EFFECTIVE IMMEDIATELY, all WRK-21 Videoscope service requests will be handled through the Bosch S2C Customer Portal directly. The previous procedure of contacting the DSQM and shipping the damaged scope kit to SOA in Camden, NJ has been discontinued. The hyperlink provided below will outline the procedure and includes easy to follow screen shots. Bosch Product Service Process PLEASE DO NOT ship any Videoscopes to SOA Headquarters for service or replacement. Contact Subaru Service Operations with any additional questions at: serviceoperations@subaru.com.

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-955 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Subaru of America, Inc. Submission Date : JUN 09, 2022 NHTSA Recall No. : 21V-955 Manufacturer Recall No. : WRK-21 Manufacturer Information : Manufacturer Name : Subaru of America, Inc. Address : One Subaru Drive Camden NJ 08103 Company phone : 844-373-6614 Population : Number of potentially involved : 198,255 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2019-2020 Subaru Ascent Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS Descriptive Information : -Description of the issue: Due to an improper program, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the forward/reverse clutch (“F/R clutch”) to begin engagement before enough secondary clamping pressure has been applied to the drive chain. -The basis for how the recall population was determined: Potentially affected vehicles were identified using vehicle production records. -How the recalled products differ from products that were not included in the recall: Vehicles equipped with updated TCU control programming are not affected. The recall population includes certain 2019 – 2020 model year Ascent vehicles. The number of potentially affected Ascent vehicles is 160,941. Production Dates : FEB 22, 2018 – JUL 20, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 21V-955 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2020-2020 Subaru Legacy Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : -Description of the issue: Due to an improper program, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the forward/reverse clutch (“F/R clutch”) to begin engagement before enough secondary clamping pressure has been applied to the drive chain. -The basis for how the recall population was determined: Potentially affected vehicles were identified using vehicle production records. -How the recalled products differ from products that were not included in the recall: Vehicles equipped with updated TCU control programming are not affected. The recall population includes certain 2020 model year Legacy vehicles. The number of potentially affected Legacy vehicles is 2,057. Production Dates : JUL 15, 2019 – AUG 13, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2020-2020 Subaru Outback Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS Descriptive Information : -Description of the issue: Due to an improper program, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the forward/reverse clutch (“F/R clutch”) to begin engagement before enough secondary clamping pressure has been applied to the drive chain. -The basis for how the recall population was determined: Potentially affected vehicles were identified using vehicle production records. -How the recalled products differ from products that were not included in the recall: Vehicles equipped with updated TCU control programming are not affected. The recall population includes certain 2020 model year Outback vehicles. The number of potentially affected Outback vehicles is 35,257. Production Dates : JUL 15, 2019 – AUG 13, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 21V-955 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : Due to an improper program, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the F/R clutch to begin engagement before enough secondary clamping pressure has been applied to the drive chain. An insufficient clamping pressure may cause the drive chain to slip. Due to the increased force, the chain guide could break apart and the fragments could inhibit the shift select mechanism. In addition, over time, if the vehicle continues operation with the drive chain slipping, the drive chain could break. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If a drive chain breakage occurs while vehicles is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. Description of the Cause : The secondary pressure control program did not have a minimum secondary pressure requirement before allowing F/R clutch engagement. Therefore, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the F/R clutch to begin engagement before enough secondary clamping pressure has been applied to the drive chain. Identification of Any Warning that can Occur : None. Involved Components : Component Name 1 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AG75A Component Name 2 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AG75B Component Name 3 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AG76A Part 573 Safety Recall Report 21V-955 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 4 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AG76B Component Name 5 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF98A Component Name 6 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF98B Component Name 7 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF98C Component Name 8 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF99A Component Name 9 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF99B Component Name 10 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF99C Part 573 Safety Recall Report 21V-955 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 11 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH13A Component Name 12 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH13B Component Name 13 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH13C Component Name 14 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH14A Component Name 15 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH14B Component Name 16 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH14C Component Name 17 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH14D Part 573 Safety Recall Report 21V-955 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : December 19, 2018 – Subaru received the first technical report from the U.S. market indicating an inability to shift into drive. Subaru collected the part for further evaluation. March – July 2019 – After reviewing the collected part, Subaru confirmed the chain guide was damaged. The cause of the broken chain guide could not be determined, and Subaru opened a joint investigation with the supplier. October 2019 – February 2020 – Subaru continued to monitor the field data. Subaru requested additional part collection to increase the investigation sample size. April – August 2020 – By August 2020, Subaru had received 12 technical reports from the U.S. market with allegations including inability to shift into D or P, inability to start the engine, and contaminants in the transmission fluid pan. As a result of the investigation, an updated TCU control program was implemented on the manufacturing line. August 2020 – November 2021 – Subaru continued to monitor the field data. During this period, Subaru received 11 technical reports. In November 2021, Subaru received a technical report of the drive chain slip while the vehicle was in motion. December 2, 2021 -Subaru is aware of 23 technical reports in the U.S. market. Subaru is not aware of any crashes or injuries resulting from this condition. Out of an abundance of caution, Subaru decided to conduct a voluntary safety recall. Description of Remedy : Description of Remedy Program : For all of the potentially affected vehicles, Subaru dealers will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If vehicles are confirmed to be experiencing drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. For each potentially affected vehicle, all remedy repairs necessary will be completed at no cost to the customer. Subaru will provide reimbursement to owners for repairs according to the general plan submitted in May 2020. Part 573 Safety Recall Report 21V-955 Page 7 The information contained in this report was submitted pursuant to 49 CFR §573 How Remedy Component Differs from Recalled Component : The remedy TCU program includes a secondary pressure requirement prior to allowing F/R clutch engagement. Identify How/When Recall Condition was Corrected in Production : The updated TCU control program was implemented on the manufacturing line beginning July 21, 2020 (Ascent) and August 13, 2020 (Outback/ Legacy). Recall Schedule : Description of Recall Schedule : Owner notification will occur within 60 days. If remedy tools and /or reprogramming files are not available within 60 days, an interim notification letter will be issued. Dealer notification is scheduled to begin on or about December 10, 2021. Updated June 9, 2022: Final owner notification is anticipated to begin in August 2022 and be phased throughout a 2 month period. Planned Dealer Notification Date : DEC 10, 2021 – DEC 10, 2021 Planned Owner Notification Date : FEB 07, 2022 – FEB 07, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-955 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Subaru of America, Inc. Submission Date : DEC 09, 2021 NHTSA Recall No. : 21V-955 Manufacturer Recall No. : WRK-21 Manufacturer Information : Manufacturer Name : Subaru of America, Inc. Address : One Subaru Drive Camden NJ 08103 Company phone : 844-373-6614 Population : Number of potentially involved : 198,255 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2019-2020 Subaru Ascent Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS Descriptive Information : -Description of the issue: Due to an improper program, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the forward/reverse clutch (“F/R clutch”) to begin engagement before enough secondary clamping pressure has been applied to the drive chain. -The basis for how the recall population was determined: Potentially affected vehicles were identified using vehicle production records. -How the recalled products differ from products that were not included in the recall: Vehicles equipped with updated TCU control programming are not affected. The recall population includes certain 2019 – 2020 model year Ascent vehicles. The number of potentially affected Ascent vehicles is 160,941. Production Dates : FEB 22, 2018 – JUL 20, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 21V-955 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2020-2020 Subaru Legacy Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS Descriptive Information : -Description of the issue: Due to an improper program, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the forward/reverse clutch (“F/R clutch”) to begin engagement before enough secondary clamping pressure has been applied to the drive chain. -The basis for how the recall population was determined: Potentially affected vehicles were identified using vehicle production records. -How the recalled products differ from products that were not included in the recall: Vehicles equipped with updated TCU control programming are not affected. The recall population includes certain 2020 model year Legacy vehicles. The number of potentially affected Legacy vehicles is 2,057. Production Dates : JUL 15, 2019 – AUG 13, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2020-2020 Subaru Outback Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS Descriptive Information : -Description of the issue: Due to an improper program, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the forward/reverse clutch (“F/R clutch”) to begin engagement before enough secondary clamping pressure has been applied to the drive chain. -The basis for how the recall population was determined: Potentially affected vehicles were identified using vehicle production records. -How the recalled products differ from products that were not included in the recall: Vehicles equipped with updated TCU control programming are not affected. The recall population includes certain 2020 model year Outback vehicles. The number of potentially affected Outback vehicles is 35,257. Production Dates : JUL 15, 2019 – AUG 13, 2020 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 21V-955 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : Due to an improper program, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the F/R clutch to begin engagement before enough secondary clamping pressure has been applied to the drive chain. An insufficient clamping pressure may cause the drive chain to slip. Due to the increased force, the chain guide could break apart and the fragments could inhibit the shift select mechanism. In addition, over time, if the vehicle continues operation with the drive chain slipping, the drive chain could break. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If a drive chain breakage occurs while vehicles is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. Description of the Cause : The secondary pressure control program did not have a minimum secondary pressure requirement before allowing F/R clutch engagement. Therefore, if the shift select was moved to drive or reverse (D or R) immediately after the engine was started, the independent secondary pressure control program may allow the F/R clutch to begin engagement before enough secondary clamping pressure has been applied to the drive chain. Identification of Any Warning that can Occur : None. Involved Components : Component Name 1 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AG75A Component Name 2 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AG75B Component Name 3 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AG76A Part 573 Safety Recall Report 21V-955 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 4 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AG76B Component Name 5 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF98A Component Name 6 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF98B Component Name 7 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF98C Component Name 8 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF99A Component Name 9 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF99B Component Name 10 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AF99C Part 573 Safety Recall Report 21V-955 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 11 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH13A Component Name 12 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH13B Component Name 13 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH13C Component Name 14 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH14A Component Name 15 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH14B Component Name 16 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH14C Component Name 17 : UNIT-AT CONTROL Component Description : Transmission Control Unit (TCU) Component Part Number : 30919AH14D Part 573 Safety Recall Report 21V-955 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : December 19, 2018 – Subaru received the first technical report from the U.S. market indicating an inability to shift into drive. Subaru collected the part for further evaluation. March – July 2019 – After reviewing the collected part, Subaru confirmed the chain guide was damaged. The cause of the broken chain guide could not be determined, and Subaru opened a joint investigation with the supplier. October 2019 – February 2020 – Subaru continued to monitor the field data. Subaru requested additional part collection to increase the investigation sample size. April – August 2020 – By August 2020, Subaru had received 12 technical reports from the U.S. market with allegations including inability to shift into D or P, inability to start the engine, and contaminants in the transmission fluid pan. As a result of the investigation, an updated TCU control program was implemented on the manufacturing line. August 2020 – November 2021 – Subaru continued to monitor the field data. During this period, Subaru received 11 technical reports. In November 2021, Subaru received a technical report of the drive chain slip while the vehicle was in motion. December 2, 2021 -Subaru is aware of 23 technical reports in the U.S. market. Subaru is not aware of any crashes or injuries resulting from this condition. Out of an abundance of caution, Subaru decided to conduct a voluntary safety recall. Description of Remedy : Description of Remedy Program : For all of the potentially affected vehicles, Subaru dealers will reprogram the TCU. The historical TCU data will be analyzed for chain slip characteristics and the chain guide will be visually inspected. If vehicles are confirmed to be experiencing drive chain slip or if the chain guide is damaged, the transmission assembly will be replaced. For each potentially affected vehicle, all remedy repairs necessary will be completed at no cost to the customer. Subaru will provide reimbursement to owners for repairs according to the general plan submitted in May 2020. Part 573 Safety Recall Report 21V-955 Page 7 The information contained in this report was submitted pursuant to 49 CFR §573 How Remedy Component Differs from Recalled Component : The remedy TCU program includes a secondary pressure requirement prior to allowing F/R clutch engagement. Identify How/When Recall Condition was Corrected in Production : The updated TCU control program was implemented on the manufacturing line beginning July 21, 2020 (Ascent) and August 13, 2020 (Outback/ Legacy). Recall Schedule : Description of Recall Schedule : Owner notification will occur within 60 days. If remedy tools and /or reprogramming files are not available within 60 days, an interim notification letter will be issued. Dealer notification is scheduled to begin on or about December 10, 2021. Planned Dealer Notification Date : DEC 10, 2021 – DEC 10, 2021 Planned Owner Notification Date : FEB 07, 2022 – FEB 07, 2022 * NR – Not Reported

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: October 24, 2022 UPDATE: Subaru Safety & Emissions Recall: WRK-21 – CVT Chain Guide Breakage Retailer Responsibility SOA Claims department continue to receive WRK-21 claims without the required documentation for CVT replacements. As a reminder, any claim not adhering to the requirements stated on page 5 of the WRK-21 Product Campaign Bulletin are subject to rejection or debit. Starting October 24, all WRK-21 retailer CVT replacement claims that are missing the required attachments (SSM data, scope images, and serial number photos) will automatically show the claim as Awaiting Retailer. This was a manual process previously. The retailer will need to respond by attaching the required information to the claim before the claim can be paid. No QMR is required for this service. The required information should be attached to the claim for payment, not a QMR. Please continue to follow the procedures in the latest WRK-21 Product Campaign Bulletin. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION

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Subarunet Announcement To: All Subaru Retailers ATTENTION: Subaru Service Manager, Warranty Managers, Shop Foremen, and Technicians From: Subaru of America, Inc. – Service Operations Department Date: July 29, 2022 Re: WRK-21 CVT Chain Guide Breakage Recall – REQUIRED Information for WRK-21 Service Claims _______________________________________________________________________________________ •The WRK-21 Chain Guide Breakage Recall requires retailers to retain certain information in the form ofdata and photos relating to this campaign •The table below outlines the information required to be retained by the retailer for all WRK-21 service •This information is also found in the WRK-21 technical service bulletin. •Claims for CVT replacement require all retained information to be ATTACHED to the claim. •Claims not adhering to these procedures will be subject to REJECTION or DEBIT.

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: September 20, 2022 UPDATE Subaru Safety & Emissions Recall: WRK-21 – CVT Chain Guide Breakage All remaining owner notification letters will be mailed on September 30. The WRK21 recall status of those VINs will be changed to ‘Open’ on October 3, to allow online scheduling and trigger the usual push notifications (MySubaru, in-vehicle, Care Connect communications and newsletter inclusion). Background Subaru of America, Inc. (Subaru) is initiating this safety and emissions Recall for certain 2019-2020 model year Ascent vehicles, 2020 model year turbo Legacy vehicles, and 2020 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break. Description of the Defect and Safety Risk Due to a programming error in the transmission control unit (TCU), the drive chain may slip, resulting in breakage of the chain guide. If the drive chain guide breaks, resulting fragments could inhibit the shift select mechanism. If the vehicle continues operation with the drive chain slipping, over time the drive chain could break. If the drive chain breaks while the vehicle is in motion, the vehicle may experience a loss of motive power, increasing the risk of a crash. Affected Vehicles The number of U.S. vehicles included in this recall is 198,255. Not all vehicles in the production date ranges listed above may be included in this recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com, which is available. Note: This recall replaces Subaru’s previous WUV-07 recall issued in January 2020 for certain 2019 model year Ascent vehicles. Vehicles affected by the previous recall must return to complete the WRK-21 recall repair, even if the previous recall repair was completed. Any open WUV-07 coverage has been expired. The VIN status for WRK-21 will display as “Open – Limited Parts Available” to allow repairs to begin prior to owner notification. As the owner notification letters are released in phases, the status will be updated to “Open” at a VIN-level basis. Model Year Carline Production date range 2019-2020 Ascent February 22, 2018 – July 20, 2020 2020 Legacy (turbo models) July 15, 2019 – August 13, 2020 2020 Outback (turbo models) July 15, 2019 – August 13, 2020 Owner Notification Interim owner notification letters were sent by first class mail on February 7, 2022 announcing this recall as required by federal law, as Subaru needed to acquire the special tools, parts, and reprogramming (PAK) files required for this recall. Affected vehicle owners will be notified that the remedy is available by first class mail, in phases, beginning in August and throughout a two month period: • The first phase will be mailed on August 19, to approximately 77,000 owners of affected 2019 model year Ascent vehicles which were previously affected by the WUV07 recall. The WRK21 VIN status of these vehicles will be changed to ‘Open’ on August 22, to allow online scheduling and trigger the usual push notifications (MySubaru, in-vehicle, Care Connect communications and newsletter inclusion). • The final phase will be mailed on September 30, to all remaining owners of vehicles affected by this recall. The WRK21 VIN status will be changed to ‘Open’ on October 3, to allow online scheduling and trigger the usual push notifications (MySubaru, in-vehicle, Care Connect communications and newsletter inclusion). Service, Parts, and Claim Instructions Please refer to the WRK-21 Product Campaign Bulletin on STIS for detailed service and claim instructions. Retailer Responsibility Please be advised that it is a violation of Federal law for a dealer to deliver a new motor vehicle covered by a recall under a sale or lease until the defect is remedied. Therefore, any Authorized Subaru Retailer failing to perform the applicable service procedures to correct all affected vehicles in their inventory prior to the vehicle being placed in service may be subject to civil penalties of up to $22,423 per violation (i.e., for each vehicle), as provided in 49 CFR §578.6 and will also be in breach of the Subaru Dealer Agreement. Any vehicles listed in any recall or campaign that are in retailer stock must be: • Immediately identified • Tagged or otherwise marked to prevent their delivery or use prior to repair • Repaired in accordance with the repair procedures outlined in the Bulletin Retailers are to promptly perform the applicable service procedures, to correct all affected vehicles in their inventory (new, used, demo & SSLP). Additionally, whenever a vehicle subject to this recall is taken into inventory or in for service, necessary steps should be taken to ensure the repair has been made before selling or releasing the vehicle.

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