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Service bulletins for the 2021 Subaru Legacy

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.

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

By type

By component

By trouble code

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

Bulletins, newest first
15-273-202021-10-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin addresses isolated customer concerns regarding the pictured CP1 BASE Model Center Information Display (CID) LOWER 7-inch display screen flashing, not responding to touch inputs and / or shutting off intermittently.
Subarunet Announ2021-09-03. Service bulletin. EQUIPMENT. Subaru of America, Inc. (Subaru) is initiating a new voluntary emissions recall for certain 2021 model year Ascent, Legacy, and Outback vehicles equipped with a 2.4L turbo engine.
18-213-212021-09-03. Service bulletin. EQUIPMENT. This bulletin provides a description of current changes to Service Manuals available via the Subaru Technical Information System (STIS) web site.
12-323-212021-09-03. Service bulletin. LATCHES/LOCKS/LINKAGES; EQUIPMENT. This bulletin announces the service procedure for addressing possible water entry into the interior from the door(s) area.
01-167-08R2021-07-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models
09-51-08R2021-07-03. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This bulletin is to advise of SOA’s revised catalytic converter recycling program shipping procedure.
18-206-212021-06-02. Service bulletin. EQUIPMENT. Description of current changes to Service Manuals available via the Subaru Technical Information System (STIS) web site.
15-240-19R2021-05-04. Service bulletin. EQUIPMENT. This bulletin announces availability of new audio unit amplifier units with revised internal logic designed to optimize efficiency.
15-272-20R2021-05-04. Service bulletin. EQUIPMENT. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
12-317-212021-04-02. Service bulletin. EQUIPMENT. This bulletin announces a change to the mat located in the inside tray of the center console box lid to address concerns of shrinking and deformation.
12-314-212021-03-05. Service bulletin. STRUCTURE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin announces availability of new weatherstrips designed to eliminate a squeaking / chirp-type sound heard when closing the front doors.
12-313-212021-03-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE; EQUIPMENT. This bulletin announces changes made to the rear door weatherstrip to optimize their water sealing performance.
05-84-212021-03-04. Service bulletin. EQUIPMENT. This bulletin announces availability of new front wheel hub assemblies incorporating bearing surfaces having increased resistance to imperfections resulting from shock loads.
15-277-212021-03-04. Service bulletin. EQUIPMENT; EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:120/240 VAC ELECTRICAL SYSTEM:GFCI/AFCI; ELECTRICAL SYSTEM. This bulletin provides the procedure which must be followed to properly register the Map Update Request Code assigned to the exchange CCU with the Subaru Map Update web portal.
14-27-212021-03-04. Service bulletin. ENGINE; EQUIPMENT. This bulletin announces the upcoming issuance to all retailers of an essential tool update kit for the Engine Support Assembly Kit #J-50135-A.
15-240-19R2021-03-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency.
16-132-20R2021-03-04. Service bulletin. POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. 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.
14-22-16R2021-02-18. Service bulletin. EQUIPMENT. To help reduce confusion and increase technician efficiency, Subaru of America, Inc. (SOA) has developed the following cross reference list to help locate the appropriate Special Service Tool.
15-195-16R2021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides important information regarding diagnosis and replacement of the STARLINK Telematics Data Communication Module (DCM). This update is applicable to all models equipped with a STARLINK Telematics System.
15-265-20R2021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides an overview and basic instructions for use of the “Destination to Vehicle” feature of the Gen 2 Telematics system.
15-267-20R2021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides information related to the telematics system's Automatic Collision Notification (ACN) and Advanced Automatic Collision Notification (AACN) feature operation, diagnostic tips, and best practices.
12-307-212021-02-01. Service bulletin. VISIBILITY; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This bulletin announces changes to the configuration of the windshield washer hose and nozzle assemblies.
01-168-09R2021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The purpose of this bulletin is to provide replacement key and immobilizer information.
Subarunet Announ2021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Campaigns WRH-20 and WRI-20 related to a Denso Gen 4 CP1 software update. Critical points to avoiding unnecessary hardware replacement.
16-132-20R2021-01-05. Service bulletin. POWER TRAIN; EQUIPMENT. This Service Information Bulletin provides updated diagnostic procedures to follow when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions.

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