2020 Subaru WRX Technical Service Bulletins

288 technical service bulletins (TSBs) are on record for the 2020 Subaru WRX. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10174536Apr 30, 2020Electrical system. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
• 10174535Apr 17, 2020Electrical system. Subaru's QMR of the month winner.
• 10174512Apr 8, 2020Electrical system. This bulletin is designed to address an error code 202 and/or 204 when attempting to complete the STARLINK Telematics subscription process.
• 10173135Mar 20, 2020Latches, locks and linkages, Electrical system, Body and structure. This Service Information Bulletin provides insight on how to address a customer concern of the rear hatch, Power Rear Gate (PRG) or trunk release operating (or finding the PRG/trunk open unexpectedly after parking) without a specific input (button press) from the operator.
• 10173128Mar 19, 2020Electrical system, Equipment. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
• 10173127Mar 19, 2020Electrical system, Air bags, Equipment. This bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
• 10173117Mar 10, 2020Engine cooling, Electrical system, Equipment. This Bulletin provides information regarding DTC P0606 related specifically to the determination of this code on Forester Turbo and applicable WRX models.
• 10171950Feb 21, 2020Electrical system. This Service Information bulletin describes a change made to the labels applied to the push to start switches used on the models listed.
• 10171939Feb 21, 2020Equipment. This bulletin details an important regulation issued by the National Highway Traffic Safety Administration (NHTSA) which impacts the way some vehicles with accessories are sold. This regulation applies to any automobile retailer installing accessories on a vehicle prior to its first sale.
• 10171926Feb 21, 2020Transmission and drivetrain. This bulletin announces availability of new shift forks and the corresponding sleeve and hub assembly to address isolated customer concerns of a rattling / vibration -type sound from the shift knob. The sound is primarily reported while driving in 4th gear between 1900 and 2500 rpm.
• 10171932Feb 19, 2020Electrical system. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models as listed.
• 10171919Feb 11, 2020Engine cooling, Electrical system. This bulletin announces availability of reprogramming files to optimize the Engine Control Module (ECM). The new logic will address isolated concerns of a hard start condition occurring in cold weather (+10 degrees Fahrenheit or lower) and / or high-altitude areas. When this scenario occurs, the A/F learning control values move toward lean.
• 10171096Jan 28, 2020Electrical system, Equipment. This bulletin provides information on a new reprogramming procedure (FOTA) to optimize the Harman Gen 3.1 Audio and Navigation head units (H/U).
• 10171095Jan 28, 2020Equipment, Electrical system. The first TomTom map update for Gen 3.1 Harman navigation equipped vehicles was made available.
• 10171089Jan 17, 2020Equipment, Electrical system, Air bags. This Bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
• 10169851Dec 30, 2019Equipment. Reprograming file availability for optimization of Harman Gen 3.1 Audio and Navigation Head Units.
• 10169825Dec 20, 2019Electrical system. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. The exchange program policy can also be found in Sections 8.4.9 and 11.2.10 of your Claims Policies and Procedures Manual found in Subarunet.
• 10168571Nov 18, 2019Equipment, Electrical system. This bulletin provides troubleshooting steps to use when diagnosing specific and general audio/sound related concerns. Please start by completing the Harman Investigation Guide-Questionnaire as it gathers important details which will assist you with this diagnosis and is required should the condition not be resolved by this troubleshooting. Once the questionnaire is completed, follow the question flow based on the…
• 10168567Nov 18, 2019Equipment, Electrical system. This bulletin provides troubleshooting steps to follow when diagnosing a customer concern of the display screen being either frozen (unresponsive) or black (blank). Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire…
• 10168565Nov 18, 2019Equipment, Electrical system. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns of the Navigation system’s functionality. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based…
• 10168560Nov 18, 2019Equipment, Electrical system. This bulletin provides helpful information about operating conditions observed in the field for Technicians to use when diagnosing customer concerns which may arise while operating Harman Gen 3.0 and 3.1 Navigation and Display Audio systems. We will continue to add to this bulletin as more information becomes available.
• 10168627Nov 15, 2019Equipment, Electrical system. This bulletin provides troubleshooting steps to follow when diagnosing clock-related customer concerns. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based on the customer concern.
• 10168573Nov 15, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to use when diagnosing concerns of the Apple CarPlay and / or Android Auto feature not connecting or launching properly when a compatible device is connected to the head unit.
• 10168569Nov 15, 2019Electrical system, Equipment. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns involving Bluetooth (BT) functionality. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based on…
• 10168566Nov 15, 2019Equipment, Electrical system. This Service Information Bulletin announces availability of a map update which includes new software to address a route searching error. A “Route Calculation Unsuccessful” message may be displayed when the selected route crosses state borders (e.g. Route 53 which crosses between Alabama and Tennessee).
• 10168563Nov 15, 2019Equipment, Electrical system. This bulletin provides troubleshooting steps to follow when diagnosing customer concerns regarding USB functionality. Please start by completing the Harman Investigation Guide Questionnaire as it gathers important details which will help with diagnosis and will be required should the condition not be resolved by this troubleshooting. While completing the questionnaire, follow the question flow based on the customer…
• 10168600Nov 8, 2019Equipment, Electrical system. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models as listed above. The procedure will involve either downloading the software update files from Subarunet (or using those sent directly from Nuspire) and transferring them onto a flash drive for head…
• 10166918Oct 21, 2019Electrical system. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. The exchange program policy can also be found in Sections 8.4.9 and 11.2.10 of your Claims Policies and Procedures Manual found in Subarunet.
• 10166913Oct 18, 2019Electrical system. This Service Information Bulletin provides the answer to potential inquiries regarding the STARLINK app being unable to play music files stored on a customer’s Android® phone / device through the head units (H/U) used in the applicable models listed above. This information is applicable ONLY to Android devices operating with Operating System (OS) version 10. IOS (AppleTM) devices are not affected.
• 10165507Sep 18, 2019Equipment, Electrical system. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. The exchange program policy can also be found in Sections 8.4.9 and 11.2.10 of your Claims Policies and Procedures Manual found in Subarunet.
• 10164192Aug 20, 2019Steering. This bulletin provides a service procedure to address isolated customer concerns of a rattling sound identified as coming from the Electronic Power Steering (EPS) gear box (steering rack) assembly. The repair (when applicable) involves installation of a new tension spring for the worm gear to reduce / eliminate the condition. It should be noted the condition is NOT detrimental to the operation of the EPS system.
• 10182589Aug 12, 2016Equipment, Engine. This Service Information bulletin provides new inspection and repair procedures for AVCS (Active Valve Control System) -related DTCs on the FA and FB engine equipped models listed above. The applicable Service Manuals will be revised with this new information in the near future.
• 10233061Dec 3, 2014Equipment. New Vehicle Receipt- Navigation SD Card Transit Storage Location Change
• 10232535Jul 17, 2014Electrical system. Replacement Key and Immobilizer Info
• 10234841May 20, 2014Equipment, Air bags, Other or unknown. Event Data Recorder (EDR) Function of Airbag Module
• 10232894Mar 7, 2014Engine cooling. Effective with all 2015 model year cars and forward, the oil change interval is changing to 6,000 miles or 6 months, whichever comes first.
• 10233119Apr 25, 2013Engine cooling. Oil Filler Cap Gasket Coming Unseated
• 10232869Feb 19, 2013Equipment, Other or unknown. Puddle Light Recall

← All problems reported for the 2020 Subaru WRX