WRB-22 – PCV Vacuum Hose Clamp Lock Failure – 2022 Subaru WRX

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Bulletin Number: WRB-22R; Revised: 09/02/22 Page 1 of 11 SERVICE PROGRAM 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: WRB-22R DATE: 07/18/22 REVISED: 09/02/22 APPLICABILITY: 2022 MY WRX SUBJECT: PCV Vacuum Hose Clamp Lock Failure In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a new voluntary emissions recall for certain 2022 model year WRX vehicles equipped with a 2.4L turbo engine. REASON FOR THIS VOLUNTARY EMISSIONS RECALL The affected vehicles may contain a hose clamp securing the upper connection of the PCV vacuum hose (blow-by hose) which may not have been fully locked during assembly. DESCRIPTION OF THE REPAIR Subaru retailers will inspect the hose clamp securing the upper connection of the PCV vacuum hose (blow-by hose) and, if necessary, adjust the hose clamp to a fully locked condition at no cost to the customer. Affected Vehicles The number of U.S. vehicles included in this service program is 5,837. Model Year Carline Production date range 2022 WRX January 21, 2022 – May 12, 2022 Not all vehicles in the production date range listed above may be included in this voluntary emissions recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com. 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. 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: WRB-22R; Revised: 09/02/22 Page 2 of 11 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 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 voluntary emissions recall is taken into retailer inventory necessary steps should be taken to ensure the correction has been made before selling or releasing the vehicle. Owner Notification Subaru will notify affected vehicle owners by first class mail in August. Retailers will be advised when the notification is scheduled. DESCRIPTION OF CONCERN: 1 Bulletin Number: WRB-22R; Revised: 09/02/22 Page 3 of 11 Continued… PART INFORMATION: REMINDER: Always order the most up-to-date replacement parts based on the specific VIN being repaired. Part Description Part Number HOSE CLAMP 805919150 IMPORTANT NOTE: The hose clamp will ONLY require replacement if it is found to have excessive damage and cannot be secured. REQUIRED TOOLS: 35-45° Bent Long-Neck Needle Nose Pliers will be required to perform the procedures outlined below. NOTE: The Snap On® 11” Talon Grip™ Long-Neck 35° Bent Needle Nose Pliers (#411CF) are a usable suggestion. Bulletin Number: WRB-22R; Revised: 09/02/22 Page 4 of 11 Continued… SERVICE PROCEDURE OUTLINE: Bulletin Number: WRB-22R; Revised: 09/02/22 Page 5 of 11 Continued… SERVICE PROCEDURE / INFORMATION: REMINDER: Customer satisfaction and retention starts with performing quality repairs. STEP 1: Remove the two mounting fasteners and then removed the intake duct. STEP 2: Perform a visual inspection of the hose clamp claw positioning from the small opening within the clamp. Bulletin Number: WRB-22R; Revised: 09/02/22 Page 6 of 11 Continued… Examples of Hose Clamp Claw Conditions IMPORTANT NOTE: The hose clamp direction may be in the opposite direction of those pictured in the examples below. STEP 3: Adjusting the hose clamp position. • Position the clamp evenly 3mm (0.12 inch) from the top the hose. • Make sure the lock portion is facing the front of the vehicle. Bulletin Number: WRB-22R; Revised: 09/02/22 Page 7 of 11 Continued… STEP 4: Using 35-45° bent long-neck needle nose pliers, squeeze the clamp at the two points indicated with arrows below. Confirm the lock portion is hooked properly onto the claw. STEP 5: Using 35-45° bent long-neck needle nose pliers, squeeze the lock portion of the clamp, and confirm it is fully locked. Bulletin Number: WRB-22R; Revised: 09/02/22 Page 8 of 11 Continued… STEP 6: Confirm the clamp is fully locked by visually inspecting the claw position as shown in the image below. IMPORTANT CAUTIONS: • If the clamp (805919150) is damaged or broken it MUST be replaced with a new part. • If replacement is required, ONLY the upper side of the PCV Vacuum Hose needs to be disconnected. Use caution to not damage any surrounding hoses and/or harnesses. STEP 7: Install the intake duct and the two mounting fasteners. 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 INPECTION OF THE PCV VACUUM HOSE CLAMP AND ADJUSTMENT TO A FULLY LOCKED CONDITION A456-233 0.3 WRB-22 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. Bulletin Number: WRB-22R; Revised: 09/02/22 Page 9 of 11 Continued… 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: WRB-22R; Revised: 09/02/22 Page 10 of 11 Subaru Service Program WRB-22 Voluntary Emissions Recall August 2022 This notice applies to the VIN identified in the address section printed below Dear Subaru Owner: We would like to thank you for your selection of a Subaru vehicle. We take pride in our products and are committed to your continued satisfaction. Subaru of America, Inc. (Subaru) is initiating a new voluntary emissions recall for certain 2022 model year WRX vehicles equipped with a 2.4L turbo engine. You have received this notice because our records indicate that you currently own one of these vehicles. REASON FOR THIS VOLUNTARY EMISSIONS RECALL Your vehicle may contain a hose clamp securing the upper connection of the PCV vacuum hose (blow-by hose) which may not have been fully locked during assembly. REPAIR Your Subaru retailer (dealer) will inspect the hose clamp securing the upper connection of the PCV vacuum hose (blow-by hose) and, if necessary, adjust the hose clamp to a fully locked condition at no cost to you. WHAT YOU SHOULD DO You should immediately contact your Subaru retailer for an appointment to have repair performed. HOW LONG WILL THE REPAIR TAKE? The actual time to perform this repair is less than twenty minutes. Your retailer can provide you with a better estimate of the overall time for this service visit, as it may be necessary to make your vehicle available for a longer period of time for scheduling purposes. 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 Continued… Bulletin Number: WRB-22R; Revised: 09/02/22 Page 11 of 11 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 service we are providing at no charge, your vehicle may not pass this test. CHANGED YOUR ADDRESS OR SOLD YOUR SUBARU? If you have moved or sold your vehicle, please go to https://www.subaru.com/support/ customer-support.html to send us your information. 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.wra22.service-campaign.com. If you need additional assistance, please contact us directly: • By e-mail: Go to https://www.subaru.com/subaru-email-us.html • 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 Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of charge. Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this action in the interest of your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment as soon as possible to have this repair performed. Sincerely, Subaru of America, Inc. A subsidiary of SUBARU CORPORATION

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: July 18, 2022 New Voluntary Emissions Recall: WRB-22 – PCV Vacuum Hose Clamp Lock Failure In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a new voluntary emissions recall for certain 2022 model year WRX vehicles equipped with a 2.4L turbo engine. Reason for this Voluntary Emissions Recall The affected vehicles may contain a hose clamp securing the upper connection of the PCV vacuum hose (blow-by hose) which may not have been fully locked during assembly. Affected Vehicles The number of U.S. vehicles included in this service program is 5,837. Not all vehicles in the production date range listed above may be included in this voluntary emissions recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com. This information is now available. Description of the Repair Subaru retailers will inspect the hose clamp securing the upper connection of the PCV vacuum hose (blow-by hose) and, if necessary, adjust the hose clamp to a fully locked condition at no cost to the customer. Retailer Responsibility 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 service program 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 Owners will be notified by first class mail in August. Retailers will be advised when the notification is scheduled. Service and Claim Information Please refer to the WRB-22 Service Program Bulletin on STIS for detailed service and claim information. Model Year Carline Production date range 2022 WRX January 21, 2022 – May 12, 2022

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Subarunet Announcement To: All Subaru Retailers From: Subaru of America, Inc. Date: August 18, 2022 UPDATE Voluntary Emissions Recall: WRB-22 – PCV Vacuum Hose Clamp Lock Failure Owner Notification Owner notification letters were issued on August 17, 2022. A copy of the letter will be included in the WRB22 Service Program Bulletin on STIS. In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a new voluntary emissions recall for certain 2022 model year WRX vehicles equipped with a 2.4L turbo engine. Reason for this Voluntary Emissions Recall The affected vehicles may contain a hose clamp securing the upper connection of the PCV vacuum hose (blow-by hose) which may not have been fully locked during assembly. Affected Vehicles The number of U.S. vehicles included in this service program is 5,837. Not all vehicles in the production date range listed above may be included in this voluntary emissions recall. Coverage for all affected vehicles must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com. This information is now available. Description of the Repair Subaru retailers will inspect the hose clamp securing the upper connection of the PCV vacuum hose (blow-by hose) and, if necessary, adjust the hose clamp to a fully locked condition at no cost to the customer. Retailer Responsibility 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 service program 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. Service and Claim Information Please refer to the WRB-22 Service Program Bulletin on STIS for detailed service and claim information. Model Year Carline Production date range 2022 WRX January 21, 2022 – May 12, 2022

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