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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
15-246-19R2023-07-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs.
15-240-19R2023-07-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressing customer concerns.
02-190-22R2023-07-03. Service bulletin. ENGINE AND ENGINE COOLING. This Service Information Bulletin announces the proper diagnostic procedures regarding oil leakage from the oil level switch area.
16-132-20R2023-07-03. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Service Information 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.
16-136-22R2023-07-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; POWER TRAIN; ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:CVT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This service bulletin provides a temporary repair procedure to address vibrations and/or judder concerns experienced on turns during acceleration.
15-300-22R2023-07-03. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT; COMMUNICATION:MANUFACTURER TELEMATICS. This Service Information Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES). All Gen2 and Gen3 Telematics Equipped Models.
05-62-18R2023-06-05. Service bulletin. SUSPENSION. This bulletin provides a procedure to address customer concerns of surface rust accumulating in the top center retaining nut area of the front strut mounts.
07-213-22R2023-06-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin announces a new Genuine Subaru Replacement battery for use in applications where the current SOA821B700 battery is specified.
09-80-21R2023-06-05. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This bulletin announces availability of a new thermo control valve assembly.
17-18-232023-06-05. Service bulletin. AIR BAGS; EQUIPMENT. This bulletin announces availability of the one-time use mounting clip and spacer clip for the air bag curtain module.
15-282-21R2023-06-05. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT. This Bulletin announces additional diagnostic procedures and a detailed flow chart to be used when diagnosing customer concerns regarding the operation of the STARLINK Remote Engine Start (RES) feature.
11-204-232023-05-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ENGINE AND ENGINE COOLING. This Service Information Bulletin announces a design change made to the Positive Crankcase Ventilation (PCV) hose assembly.
07-217-232023-05-02. Service bulletin. EQUIPMENT; LATCHES/LOCKS/LINKAGES:DOORS:LOCK. This Bulletin announces additional cautions being added to the Owner’s Manual and Service Manual regarding the operation of door locks.
16-132-20R2023-05-02. Service bulletin. POWER TRAIN. 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.
15-266-20R2023-05-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Service Information Bulletin provides helpful procedures and best practices to utilize when customers present with concerns relating to the operation of their Gen 2/Gen 3 Telematics system equipped Subaru.
12-320-21R2023-05-02. Service bulletin. LATCHES/LOCKS/LINKAGES; STRUCTURE. This Service Information Bulletin announces a design change made to the front and rear door outer garnish trim.
15163132023-04-24. Service bulletin. TRAILER HITCHES. Accessory Trailer Hitch L101SAJ001
171713R2023-04-24. Service bulletin. UNKNOWN OR OTHER; AIR BAGS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Event Data Recorder (EDR) Function of Airbag Module
036912R2023-04-17. Service bulletin. EQUIPMENT:MECHANICAL:INTEGRATED JACK/LEVELER/STABILIZER:HOSES/CABLES/RODS/GEARS/STRUT/CYLINDER. 6MT Transfer Driven Gear Bearing
15-273-202023-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Service Information Bulletin addresses isolated customer concerns regarding the pictured CP1 BASE Model Center Information Display (CID) LOWER 7-inch display screen flashing, not responding to touch inputs and / or shutting off intermittently.
15-285-21R2023-04-06. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. This Bulletin provides reference tables and photos to use for determining the infotainment head unit supplier and generation.
15-268-20R2023-04-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM. USB Map Data Update Procedure for Denso Gen 4 Navigation Equipped System.
15-270-20R2023-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING 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.
15-240-19R2023-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressing customer concerns.
WRK-21/22R2023-04-06. 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.

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