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Service bulletins for the 2021 Subaru WRX

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.

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

By type

By component

By trouble code

Bulletins, newest first
15-255-19R2023-06-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Map Data Update Procedure for Harman Gen 3.1 Navigation Equipped Head Units (H/U).
15-236-18R2023-06-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL:INFOTAINMENT. 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.
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.
15-256-19R2023-06-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT; 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) utilized in the models as 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.
171713R2023-04-24. Service bulletin. UNKNOWN OR OTHER; AIR BAGS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Event Data Recorder (EDR) Function of Airbag Module
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.
0373142023-04-03. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This bulletin informs of a design change to the reverse idler gear and its internal spring along with a revised assembly procedure. The only purpose for the change was to enhance production efficiency.
02140132023-03-20. Service bulletin. ENGINE AND ENGINE COOLING. Oil Filler Cap Gasket Coming Unseated
Announcement2023-03-20. Service bulletin. EQUIPMENT. New Vehicle Receipt- Navigation SD Card Transit Storage Location Change
Announcements-22023-03-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION: OIL COOLER. 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.
WQE41-12023-03-13. Service bulletin. UNKNOWN OR OTHER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Puddle Light Recall
0116809R2023-03-06. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Replacement Key and Immobilizer Info
15-242-19R2023-03-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Service Information bulletin has been developed for use as a quick reference tool to aid in diagnosing operational concerns of the Gen 2 Telematics system’s remote access features.
15-219-18R2023-03-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. When attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process from completing successfully.
15-236-18R2023-03-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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.
15-236-18R2022-12-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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.
15-282-21R2022-12-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Bulletin provides additional procedures and a detailed flow chart to use when diagnosing customer concerns regarding operation of the STARLINK RES feature.
WRE-22R2022-11-03. Service bulletin. POWER TRAIN; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2015-2021 model year WRX STI vehicles, which may contain a defective back-up lamp switch.
5-88-21R2022-11-03. Service bulletin. SUSPENSION. This bulletin announces a design change made to the front stabilizer bushings.
09-74-21R2022-10-04. 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.
WRE-222022-10-04. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION; EQUIPMENT. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2015-2021 model year WRX STI vehicles, which may contain a defective back-up lamp switch.
09-74-21R2022-09-08. 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).
SubaruNet Announ2022-09-08. Service bulletin. EQUIPMENT; POWER TRAIN. WRE-22 Backup lamp switch failure safety recall
01-167-08R2022-09-08. Service bulletin. EQUIPMENT. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.

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