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Service bulletins for the 2021 Subaru Outback

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.

488 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
15-302-222022-09-08. 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.
15-300-222022-09-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES). All Gen2 Telematic equipped models.
Subaru Tech Tips2022-09-08. Service bulletin. EQUIPMENT. Special Edition, 2012 current model subaru evaporative diagnostics and smoke testing.
15-282-21R2022-09-08. 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.
WRK-21/22R2022-09-08. Service bulletin. POWER TRAIN. 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.
15-270-20R2022-09-08. 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.
16-132-20R2022-08-02. 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.
15-298-222022-08-02. 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.
SubaruNet Announ2022-08-02. 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)."
05-88-212022-08-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION. This bulletin announces a design change made to the front stabilizer bushings.
15-246-19R2022-07-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs.
09-88-222022-07-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces availability of new reprograming files for the Engine Control Module (ECM).
18-224-222022-07-06. 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.
15-296-222022-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin addresses the rare cases of activation of touch screen buttons without touch. (11.6" Display Screen Only)
15-273-202022-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin addresses isolated customer concerns regarding the pictured CP1 BASEModel Center Information Display (CID) LOWER 7-inchdisplay screen flashing, not responding to touch inputs and / or shutting off intermittently.
15-295-222022-06-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin addresses the rare cases of activation of touch screen buttons without touch. (Dual 7" Display Screen Only)
18-218-222022-06-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces the Service Manual correction for the diagnostic trouble tree for DTC B281C.
15-261-20R2022-06-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units.
15-261-20R2022-05-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units.
15-261-20R2022-05-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units.
09-86-222022-05-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces availability of new reprograming files for the Engine Control Module (ECM).
16-136-22R2022-05-03. Service bulletin. POWER TRAIN; EQUIPMENT; ENGINE AND ENGINE COOLING. This service bulletin provides a temporary repair procedure to address vibrations and/or judder concerns experienced on turns during acceleration.
18-223-222022-05-03. Service bulletin. EQUIPMENT. The purpose of this bulletin is to provide a description of current changes to Service Manuals available via the Subaru Technical Information System (STIS) web site.
02-190-222022-04-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces the proper diagnostic procedures regarding oil leakage from the oil level switch area.
15-246-19R2022-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the 2020-2022 Subaru vehicles.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.