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Service bulletins for the 2021 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.

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

By type

By component

By trouble code

Only bulletins with type: Other are shown. Show all

Bulletins, newest first
SubaruNet Announcement (M2026-10-05. Other. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This announcement provides information on a new software update for the Midtronics Dss and DCA machines.
SubaruNet Announcement (T2026-10-05. Other. POWER TRAIN; ELECTRICAL SYSTEM. This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.
SubaruNet Announcement (C2026-10-05. Other. UNKNOWN OR OTHER. This announcement provides an update to all 2027 model year Subaru warranty coverages for wear items and adjustments.
SubaruNet Announcement (C2026-09-03. Other. ELECTRICAL SYSTEM; POWER TRAIN. This Announcement provides diagnostic assistance for CVT issues.
Article Locator2026-09-03. Other. ELECTRICAL SYSTEM. Techtips newsletter locator index.
SubaruNet Annoucement (E2026-07-02. Other. UNKNOWN OR OTHER. This announcement is requesting retailer staff to retain the EyeSight protective hood covers from Generation 4 EyeSight cameras.
SubaruNet Announcement (R2026-06-01. Other. POWER TRAIN. This announcement provides information on the remanufactured CVT transmission program.
SubaruNet Announcement (A2026-04-02. Other. ELECTRICAL SYSTEM. This announcement provides information on the use of aftermarket services or tools for programming immobilizer keys/fobs.
Subarunet Announcement (E2026-02-02. Other. UNKNOWN OR OTHER. This announcement has been created to address difficulties with software updates on Subaru Select Monitors with DST-010 interface firmware has been updated.
Subaru Tech Tips (Article2025-12-01. Other. UNKNOWN OR OTHER. Subaru service article locator.
Subaru Tech Tips (Article2025-12-01. Other. UNKNOWN OR OTHER. Subaru service article locator.
Subaru Tech Tips (Article2025-11-04. Other. UNKNOWN OR OTHER. Subaru tech tips newsletter article locator.
Subaru Tech Tips (Article2025-11-04. Other. UNKNOWN OR OTHER. Subaru tech tips newsletter article locator.
SubaruNet Announcement2025-09-02. Other. ELECTRICAL SYSTEM. Subaru of America, Inc. will release an OTA to perform a software update to the DCM. This is a preventive OTA.
Subaru Service Technical2025-09-02. Other. ENGINE; ELECTRICAL SYSTEM; POWER TRAIN. Subaru Service Technical Support Newsletter special edition.
SubaruNet Announcement2025-08-04. Other. ELECTRICAL SYSTEM; LANE DEPARTURE: ASSIST; LANE DEPARTURE: WARNING; FORWARD COLLISION AVOIDANCE: WARNINGS. This announcement provides information about a Subaru of America, Inc. preliminary settlement in a class action lawsuit regarding the EyeSight system in certain Subaru vehicles.
SubaruNet Announcement2025-08-04. Other. ELECTRICAL SYSTEM. This OTA is released to address Telematic functions that may stop working after a certain amount of time from the vehicle's production.
SubaruNet Annoucement2025-07-01. Other. UNKNOWN OR OTHER. This announcment provides information on the release of the latest software updates to the Subaru Midtronics DSS-5000 Battery Diagnostic tool.
SubaruNet Announcement (S2025-07-01. Other. UNKNOWN OR OTHER. This announcement is to bring attention to the OTA for In-vehicle service appointment scheduler and In-vehicle message center.
Subarunet Announcement2025-02-04. Other. ELECTRICAL SYSTEM. As part of Subaru's dedication to customer satisfaction, Subaru of America, Inc. (SOA) is announcing a Warranty Extension of the New Vehicle Limited Warranty coverage for the CP1 & Gen 3.1 Infotainment head units for the models listed.
Subarunet Announcement2025-02-04. Other. UNKNOWN OR OTHER. This announcement is in regard to special service tool shipment will be shipped directly to the Subar retailers during February.
RC5 Head Unit OTA2025-02-04. Other. ELECTRICAL SYSTEM. A head unit OTA will be available via cellular network for Mid and High Grade CP1.5 head units.
SubaruNet Announcement2024-12-03. Other. ELECTRICAL SYSTEM. This annocement is to inform dealers to the Gen 3.1 Head Unit OTA will be available via Wi-Fi. The update will take place in multiple batches with the first beginneing November 15th and the last being Decemeber 3rd. This update is for approximatelt 714,000 VINs.
SubaruNet Announcement2024-10-02. Other. ELECTRICAL SYSTEM. The CP1.5 RCs OTA is available for all mid and high grade CP1.5 head units.
Subarunet Announcement2024-08-05. Other. POWER TRAIN. This annoucement provides parts personnel information about remanufactured transmissions that will no longer be available.

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