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Service bulletins for the 2023 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.

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

By type

By component

By trouble code

Bulletins, newest first
07-218-23R2025-02-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces availability of a new Genuine Subaru Alternative Replacement Battery introduced to satisfy current supply demands.
16-149-252025-02-04. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. "This bulletin announces availability of the new TR580 control valve and connector cover developed to address cases of the following DTCs detected by the Transmission Control Module (TCM): • P2721: Pressure Control Solenoid “D” Control Circuit High • P2763: Torque Converter Clutch Pressure Control Solenoid Control Circuit High • P0974: Shift Solenoid “A” Control Circuit High • P0977: Shift Solenoid “”B”” Control Circuit High"
09-122-24R2025-02-03. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This bulletin the announces diagnostic procedures and availability of new Engine Control Module (ECM) reprogramming files to address DTC P2404 (Evap System Leak Detection Pump Sense Circuit Range/Performance) detection.
15-246-19R2025-01-03. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the models listed.
02-193-242025-01-03. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. 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).
09-122-24R2025-01-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This bulletin the announces diagnostic procedures and availability of new Engine Control Module (ECM) reprogramming files to address DTC P2404 (Evap System Leak Detection Pump Sense Circuit Range/Performance) detection.
07-59-07R2025-01-03. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. This bulletin is for information purposes only.The bulletin adresses design changes of the headlamps and rear combination lamps, where moisture and or condensation may develop on the inside of the lamp lenses.
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.
15-236-18R2024-12-02. Service bulletin. 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.
12-251-23R2024-12-02. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. This bulletin announces the initialization service procedures to be followed when diagnosing and/or repairing Power Rear Gate (PRG) systems.
15-130-08R2024-11-04. Service bulletin. UNKNOWN OR OTHER. This bulletin details an important regulation issued by the National Highway Traffic Safety Administration (NHTSA) which impacts the way some vehicles with accessories are sold. This regulation applies to any automobile retailer installing accessories on a vehicle prior to its first sale.
01-167-08R2024-11-04. Service bulletin. UNKNOWN OR OTHER. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
15-298-22R2024-10-02. Service bulletin. ELECTRICAL SYSTEM. This Service Information 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.
01-167-08R2024-10-02. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
02-192-242024-10-02. Service bulletin. ENGINE. This Service Information Bulletin announces the diagnostic procedures to be followed when diagnosing engine oil leakage on FA and FB type engines.
07-178-21R2024-10-02. Service bulletin. ELECTRICAL SYSTEM. This Service Information bulletin is being released as guidance for proper testing and charging of vehicle batteries.
15-320-242024-10-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
SubaruNet Announcement2024-10-02. Other. ELECTRICAL SYSTEM. The CP1.5 RCs OTA is available for all mid and high grade CP1.5 head units.
12-255-24R2024-10-02. Service bulletin. ENGINE. This bulletin announces the repair procedure developed to address cases of a knocking type sound emitting from the engine compartment.
02-191-22R2024-10-02. Service bulletin. ENGINE. This bulletin announces availability of the NEW genuine Subaru engine oil filter.
03-94-242024-10-02. Service bulletin. SUSPENSION. This bulletin outlines the judgment criteria to be used when inspecting front transverse link bushings to reduce unnecessary bushing replacement.
09-115-24R2024-10-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This bulletin announces the availability of new oxygen sensors developed to address Diagnostic Trouble Codes (DTCs) detected by the Engine Control Module.
15-320-242024-09-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure for 2025MY vehicles.
01-168-09R2024-09-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. The purpose of this bulletin is to provide replacement key and immobilizer information along with an overview of the Subaru Lock Information web-site.
15-308-23R2024-09-04. Service bulletin. ELECTRICAL SYSTEM. This Service Information Bulletin announces important diagnostic information to utilize when the Data Communication Module (DCM) is being tested as a dark current/standby current source.

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