WenmarOpen by Wenmar Pro

Service bulletins for the 2021 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.

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

By type

By component

By trouble code

Bulletins, newest first
12-251-232023-12-05. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE; LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. This bulletin announces the initialization service procedures to be followed when diagnosing and/or repairing Power Rear Gate (PRG) systems.
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).
12-248-23R2023-11-06. Service bulletin. STRUCTURE. This Bulletin announces the repair procedure developed to address rattle-type sounds heard from the left and/or right B-Pillar area.
12-252-23R2023-11-06. Service bulletin. SEATS; ELECTRICAL SYSTEM. This bulletin announces the availability of new seat ventilation blower units.
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.
07-213-22R2023-11-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces a new Genuine Subaru Replacement battery for use in applications where the current SOA821B700 battery is specified.
16-136-22R2023-10-03. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a repair procedure to address vibrations and/or judder concerns experienced on turns during acceleration.
12-299-20R2023-10-03. Service bulletin. ELECTRICAL SYSTEM; SEATS. This bulletin announces a design change made to the outer hinge cover on the driver’s 10-way adjustable power seats.
12-248-23R2023-10-03. Service bulletin. STRUCTURE. This Service Information Bulletin announces the repair procedure developed to address rattle-type sounds heard from the left and/or right B-Pillar area.
WRK-21/22R2023-10-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; POWER TRAIN. Subaru of America, Inc. (Subaru) has initiated this safety and emissions Recall for certain 2019 - 2020 model year Ascent vehicles, 2020-2021 model year turbo Legacy vehicles, and 2020-2021 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break.
07-203-232023-10-03. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE; STRUCTURE; EQUIPMENT. This bulletin announced a design change made to the power rear gate drive unit assemblies.
18-231-232023-10-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE. This Bulletin announces additional information regarding error codes 1403- 1407 encountered when attempting an adjustment/calibration of the EyeSight® system after body repair procedures have been performed.
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.
09-106-23R2023-09-05. Service bulletin. 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 crackingin the EPF.
12-299-20R2023-09-05. Service bulletin. SEATS. "This bulletin announces a design change made to the outer hinge cover on the driver’s 10-way adjustable power seats."
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.
09-108-232023-08-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ENGINE AND ENGINE COOLING. This bulletin 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.
15-285-21R2023-08-02. 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.

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