Vibration & Possible Judder Concern on Turns Under Acceleration – 2019-2022 Subaru

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Bulletin Number: 16-136-22R; Revised: 09/14/22 Page 1 of 7 SERVICE BULLETIN 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: 16-136-22R DATE: 01/20/22 REVISED: 09/14/22 APPLICABILITY: 2019-22MY Ascent 2020-22MY Legacy & Outback 2.4L Turbo SUBJECT: Vibration & Possible Judder Concern on Turns Under Acceleration INTRODUCTION: This service bulletin provides a temporary repair procedure to address vibrations and/or judder concerns experienced on turns during acceleration. If either of these conditions are verified, follow the confirmation process outlined below. If confirmed and until further notice, the multiple plate transfer (MPT) clutch will require replacement. A revised repair procedure will be introduced at a later date. PART INFORMATION: IMPORTANT NOTE: There is a specified sequence of assembly for the Driven Plates (19) and the Drive Plates (20). ATTENTION: GENERAL MANAGER q PARTS MANAGER q CLAIMS PERSONNEL q SERVICE MANAGER q IMPORTANT – All Service Personnel Should Read and Initial in the boxes provided, right. ©2022 Subaru of America, Inc. All rights reserved. Bulletin Number: 16-136-22R; Revised: 09/14/22 Page 2 of 7 Continued… IMPORTANT NOTE: As per the applicable Subaru Service Manual, assembly of the Plates must start with the external toothed Driven Plates (19) and then alternately assembled with the internally toothed Drive Plates (20). IMPORTANT NOTES: • Always order the most up-to-date replacement parts based on the specific VIN being repaired. • Part quantities indicated with a (*) in the information below MUST be ordered with the correct thickness. Refer to the applicable Service Manual for details on thrust bearing thickness confirmation. LEGACY & OUTBACK ASCENT Part Description Part Number Qty Part Description Part Number Qty CLUTCH ASSY-TRF 33119AA740 1 CLUTCH ASSY-TRF 33119AA720 1 THRUST BEARING 806536020 806535030 806535040 806535050 806535060 806535070 806535090 1* THRUST BEARING 806536020 806535030 806535040 806535050 806535060 806535070 806535090 1* GASKET 803916010 1 GASKET 803916010 1 GASKET 803918060 1 GASKET 803918060 1 RING-SEAL 31377AA490 3 RING-SEAL 31377AA490 3 High Torque CVT-LV (As Needed) High Torque CVT-LV (As Needed) Model Transmission Fluid Part Number Quantity/Unit/Pack Warranty Part # ALL High Torque CVTF-LV SOA748V0300 5 Gallon Pail SOA635312 SOA748V0310 16-Gallon Keg Bulletin Number: 16-136-22R; Revised: 09/14/22 Page 3 of 7 Continued… SERVICE PROCEDURE / INFORMATION: Procedure Overview Flowchart: Bulletin Number: 16-136-22R; Revised: 09/14/22 Page 4 of 7 Continued… Detailed Diagnosis Procedure: IMPORTANT NOTE: Before applying this bulletin, confirm the WRK-21/22 recall has been completed if applicable. STEP 1: Using Subaru Select Monitor (SSM), observe the selected data items listed in the table below. Road test and confirm if the symptom can be duplicated under the suggested conditions as listed. CAUTION: It is highly recommended for TWO people to perform this procedure; one to observe SSM data while the other drives the vehicle. Selected Data Items Conditions CVT oil pan temperature Bellow 176 Deg F Acceleration opening angle 10% to 30% Steering angle FULL Steer Vehicle speed Under 20mph IMPORTANT NOTE: Always save the recorded data in Subaru Select Monitor. STEP 2: Can the symptom be duplicated under the conditions described above? YES – Proceed to STEP 3. NO – Verify the customer’s exact complaint and continue diagnosis. STEP 3: Using the SSM, select “Work Support” within the “Transmission” menu. Select “AWD ON/OFF Switching Mode” and switch to front wheel drive mode. Road test again in this mode and attempt to duplicate the described symptom. STEP 4: Can the symptom be duplicated while operating in front wheel drive mode? YES – Continue diagnosis and repair the cause. NO – Proceed to STEP 5 CRITICAL: In a case when WRK21/22 has NOT been performed when applicable, perform the WRK-21/22 procedure. In a case when WRK21/22 is not applicable, proceed to STEP 5. STEP 5: Reprogram the TCM following the normal FlashWrite procedure. AT Learning procedure in NOT required after reprogramming has been performed. 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. Bulletin Number: 16-136-22R; Revised: 09/14/22 Page 5 of 7 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. NOTE: 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. Continued… Bulletin Number: 16-136-22R; Revised: 09/14/22 Page 6 of 7 PAK File Information: All reprogramming files are to be included in Sept 2022 SSM4 software. Confirm the WRK-21/22 recall has been completed if applicable. NOTE: AT learning procedure is NOT required after reprogramming is complete. Model Year Vehicle File name Specification Old Part Number Decryption Keyword New CID 19 ASCENT 30919AF98E.pak 2.4L DIT CVT without CVTF cooler (air cool) 30919AF98D 347BBBA5 R8FEE900 19 ASCENT 30919AF99E.pak 2.4L DIT CVT with CVTF cooler (air cool) 30919AF99D AF4E5A81 R8FEF900 20-21 ASCENT 30919AH13F.pk2 2.4L DIT CVT without CVTF cooler (air cool) 30919AH13E 68297EB0 Q9FEEA00 20-21 ASCENT 30919AH14F.pk2 2.4L DIT CVT with CVTF cooler (air cool) 30919AH14E 935CAE53 Q9FEFA00 22 ASCENT 30919AJ53B.pk2 2.4L DIT CVT without CVTF cooler (air cool) 30919AJ53A D3DF9A7B N2FEE600 22 ASCENT 30919AJ54B.pk2 2.4L DIT CVT with CVTF cooler (air cool) 30919AJ54A CED94BB7 N2FEF600 20-21 OUTBACK 30919AG76D.pk2 2.4L DIT CVT 30919AG76C C084BD9F C7FEF840 20-21 LEGACY 30919AG75D.pk2 2.4L DIT CVT 30919AG75C F7DE7793 C7FEC840 22 LEGACY 30919AJ48B.pk2 2.4L DIT CVT 30919AJ48A 306A9BDE A9FEC640 22 OUTBACK 30919AJ49B.pk2 2.4L DIT CVT 30919AJ49A D40C8A85 A9FEF640 22 OUTBACK Wilderness 30919AJ11C.pk2 2.4L DIT CVT 30919AJ11A 30919AJ11B 11D79226 A98EF730 After reprogramming is successful proceed to STEP 6. STEP 6: Replace ALL of the applicable parts outlined in the Part Information section of this bulletin. The service procedures for transfer clutch disassembly, assembly, and adjustment 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. Bulletin Number: 16-136-22R; Revised: 09/14/22 Page 7 of 7 Refer to STIS: Transmission/Transaxle > Transfer Clutch > REMOVAL, INSPECTION, DISASSEMBLY, ASSEMBLY, & ADJUSTMENT. IMPORTANT NOTES: • The CVT should be in the Neutral position when installing the park rod arm and the tail housing. With the vehicle in Neutral, the park arm is relaxed. The vehicle in park, the arm wants to lock into the plate/ gear and pawl arm is pushing up. • The Service Manual uses a black star () in the component breakdown illustration to indicate one-time use parts • Refer to the applicable Service Manual and review: General Description > Repair Contents > Action required before & after Battery Disconnect. Additionally, record any stored seat position(s) before proceeding. Relearn any seat position memory after work is complete. If the power rear gate (PRG) height has been customized, that position must also be noted and relearned. • Whenever reconnecting the ground cable terminal to the battery sensor, torque to 7.5Nm (5.5ft.-lbs. or 66inch-lbs.) while supporting the sensor with the other hand as outlined in the applicable Service Manual under: STARTING/CHARGING SYSTSEMS > Battery Sensor. WARRANTY / CLAIM INFORMATION: For vehicles within the Basic New Car Limited or Powertrain Limited Warranty period or covered by an active Subaru Added Security Powertrain, Classic or Gold plan, this repair may be submitted using the following claim information: Labor Description Labor Operation # Labor Time Fail Code CVT AWD EXTENSION HOUSING/SEALER R&R B303-431 4.6 MSP-26 CVT TRANSFER CLUTCH ASSEMBLY OVERHAUL C303-446 0.5 TCM Reprogramming A860-732 0.4 MJZ-48 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.

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