Service bulletins for the 2020 Subaru Legacy
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
595 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| SubaruNet Announ | 2022-10-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Battery Drain Class Action Settlement- Warranty Extension Training. |
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| 07-207-22R | 2022-10-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin announces a warranty extension information regarding 12 Volt vehicle batteries. |
| SubaruNet Announ | 2022-09-08. Service bulletin. ELECTRICAL SYSTEM. Announcement to Subaru Retailers regarding the preliminary settlement in a class action lawsuit regarding battery drain in certain Subaru vehicles. |
| SubaruNet Announ | 2022-09-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. A Firmware Over the Air (FOTA) software update is available for our customers with a Gen 4 head unit. |
| 09-74-21R | 2022-09-08. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers). |
| 01-167-08R | 2022-09-08. Service bulletin. EQUIPMENT. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models. |
| 15-302-22 | 2022-09-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. |
| 07-207-22R | 2022-09-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces a warranty extension information regarding 12 Volt vehicle batteries. |
| Subaru Tech Tips | 2022-09-08. Service bulletin. EQUIPMENT. Special Edition, 2012 current model subaru evaporative diagnostics and smoke testing. |
| 15-282-21R | 2022-09-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Bulletin provides additional procedures and a detailed flow chart to use when diagnosing customer concerns regarding operation of the STARLINK RES feature. |
| SubaruNet Announ | 2022-09-08. Service bulletin. POWER TRAIN. 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. Updates of Affected Vehicles and Owner Notification). |
| 15-270-20R | 2022-09-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides instruction for use of a new reprogramming procedure to optimize the Denso Gen 4 Audio and Navigation system utilized in the models listed. (Firmware Over-The Air) FOTA. |
| SubaruNet Announ | 2022-09-08. Service bulletin. ELECTRICAL SYSTEM. REQUIRED Information for WRK-21 Service Claims. |
| SubaruNet Announ | 2022-09-08. Service bulletin. ELECTRICAL SYSTEM. The purpose of this communication is to assist retailers with questions or concerns regarding the OTC 16-3880X videoscopes, including repairs and replacement procedures. |
| SubaruNet Announ | 2022-08-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN. 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. |
| 16-132-20R | 2022-08-02. Service bulletin. EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. This Bulletin provides updated diagnostic procedures to follow and a brief questionnaire to complete when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions used in the models listed. |
| 15-298-22 | 2022-08-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; COMMUNICATION:MANUFACTURER TELEMATICS. This Bulletin announces the preferred practices to be used when handling vehicles equipped with Gen2 Telematics which are enrolled in the Subaru STARLINK® Security Plus Service featuring Stolen Vehicle Recovery Plus with Immobilizer. |
| 16-139-22 | 2022-08-02. Service bulletin. EQUIPMENT; POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. The WRK-21 recall includes TCM reprogramming to prevent CVT chain slip. If, during the recall inspection, a vehicle is confirmed to have already experienced severe enough CVT chain slip, the CVT assembly will be replaced. |
| SubaruNet Announ | 2022-08-02. Service bulletin. POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. "Subaru of America, Inc. (Subaru) is initiating this safety and emissions recall for certain 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. (New recall WRK22 will cover 182 pre-production vehicles not already included in the WRK21 recall initiated in December 2021. These additional 182 vehicles will require the same repair. Background)." |
| WRK-21R | 2022-08-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. 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. |
| 15-246-19R | 2022-07-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs. |
| 09-88-22 | 2022-07-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces availability of new reprograming files for the Engine Control Module (ECM). |
| 18-224-22 | 2022-07-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Service Information Bulletin is to inform you of the diagnosis procedure of the Harman Infotainment System when DTC B2256 is detected. |
| SubaruNet Announ | 2022-07-06. Service bulletin. POWER TRAIN; EQUIPMENT. WRK-21 rental pre-authorization. |
| SubaruNet Announ | 2022-07-06. Service bulletin. POWER TRAIN. UPDATE Subaru Safety & Emissions Recall: WRK-21 – CVT Chain Guide Breakage. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.