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Service bulletins for the 2023 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.

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

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By component

By trouble code

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
SubaruNet Announ2023-12-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN. Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2021 model year Crosstrek vehicles, certain 2022 model year Forester, and certain 2021-2023 model year Legacy and Outback vehicles.
09-110-23R2023-12-05. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This Service Information Bulletin announces diagnostic service procedures to be followed when DTC P0420 (Catalyst System Efficiency Below Threshold Bank 1) is detected by the Engine Control Module (ECM).
18-224-22R2023-11-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT. This Service Information Bulletin is to inform you of the diagnosis procedure of the CP1/ CP1.5 Infotainment System when DTC B2256 is detected.
09-110-232023-11-06. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. This Service Information Bulletin announces diagnostic service procedures to be followed when DTC P0420 (Catalyst System Efficiency Below Threshold Bank 1) is detected by the Engine Control Module (ECM). If DTC P0420 is found to be stored in the ECM, follow the diagnostic procedures outlined below.
15-266-20R2023-11-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; COMMUNICATION:MANUFACTURER TELEMATICS. This 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.
15-305-22R2023-10-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4.5 Denso CP1.5 Audio and Navigation head units utilized in the models listed.
15-282-21R2023-09-05. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. This Service Information 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.
07-213-22R2023-09-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This bulletin announces a new Genuine Subaru Replacement battery for use in applications where the current SOA821B700 battery is specified.
01-168-09R2023-09-05. Service bulletin. LATCHES/LOCKS/LINKAGES; EQUIPMENT; ELECTRICAL SYSTEM. The purpose of this bulletin is to provide replacement key and immobilizer information along with an overview of the Subaru Lock Information web-site.
15-304-22R2023-08-02. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT; ELECTRICAL SYSTEM. This Service Information Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns.
15-285-21R2023-08-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT. This Bulletin provides reference tables and photos to use for determining the infotainment head unit supplier and generation.
12-249-23R2023-08-02. Service bulletin. EQUIPMENT. This bulletin announces the recommended cleaning procedures to followed when encountering vehicles with long time exposure to pollen on painted surfaces on vehicles imported from Japan. This bulletin does not apply to SIA built vehicles.
09-106-232023-08-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin announces design changes made to the Exhaust Pipe Front (EPF) to address concerns of rattle-type or fluttering sounds coming from the undercarriage during acceleration caused by cracking in the EPF.
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.
15-311-232023-07-03. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. This bulletin provides instruction for use of a new reprogramming procedure to optimize the Denso Gen 4.5 Audio and Navigation system utilized in the models listed.
14-28-21R2023-07-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ELECTRICAL SYSTEM. This Service Information Bulletin announces the new control module software reprogramming procedures.
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.
SubaruNet Announ2023-06-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. To improve our customer’s experience with software updates, bug fixes and performance enhancements, we are launching our first Head Unit FOTA to eligible customers who are subscribed to STARLINK Safety Plus.
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.
15-302-22R2023-06-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
15-305-22R2023-05-02. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT; ELECTRICAL SYSTEM. Reprogramming File Availability for Optimization of Gen 4.5 Denso CP1.5 Infotainment Systems
15-302-22R2023-05-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
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
036912R2023-04-17. Service bulletin. EQUIPMENT:MECHANICAL:INTEGRATED JACK/LEVELER/STABILIZER:HOSES/CABLES/RODS/GEARS/STRUT/CYLINDER. 6MT Transfer Driven Gear Bearing

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