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Service bulletins for the 2020 Subaru Forester

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.

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

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By component

By trouble code

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
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.
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.
15-236-18R2023-07-03. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE; 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.
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.
07-218-23R2023-06-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces availability of a new Genuine Subaru Alternative Replacement Battery introduced to satisfy current supply demands.
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.
0370122023-04-17. Service bulletin. ELECTRICAL SYSTEM. Repair Procedure for High-Pitched Sound from Extension Housing Area Using Latest Generation Production Parts
07-218-23R2023-04-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces availability of a new Genuine Subaru Alternative Replacement Battery introduced to satisfy current supply demands.
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.
15-240-19R2023-04-06. 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.
0116809R2023-03-06. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Replacement Key and Immobilizer Info
16-131-20R2023-03-02. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This Service Information Bulletin provides an updated diagnostic flow along with an IMPORTANT caution to follow for certain CVT solenoid related DTCs as listed.
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.
15-257-19R2023-03-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This Service Information Bulletin provides insight in response to both customer and retailer feedback resulting from the use of OBD-II port connected devices.
07-218-232023-03-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin announces availability of a new Genuine Subaru Alternative Replacement Battery introduced to satisfy current supply demands.
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.
07-207-22R2023-03-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Subaru Battery Drain Product Liability Litigation.
09-100-232023-02-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces availability of reprograming files for the Engine Control Module (ECM) to address rare cases of the engine surging/jolting when releasing the accelerator from halfthrottle.
07-207-22R2023-02-06. Service bulletin. ELECTRICAL SYSTEM. Subaru Battery Drain Product Liability Litigation.
07-184-20R2022-12-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces a design change made to the power window main switches used in the models listed.

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