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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

Bulletins, newest first
10-105-25R2026-03-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulting from an undetected A/C refrigerant leak.
SubaruNet Announcement (W2026-03-03. Other. ELECTRICAL SYSTEM; AIR BAGS; SEATS. This announcement provides updates for WRA-24 ODS Sensor Replacement.
Subaru Tech Tips Special2026-02-02. Service bulletin. ELECTRICAL SYSTEM. This Subaru service and technical support line newsletter provides information on the next phase of TechShare.
05-96-262026-02-02. Service bulletin. SUSPENSION. This bulletin announces design changes to the front stabilizer link to address concerns about boot cracking, which can allow grease to escape.
15-300-22R2026-02-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES).
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.
09-123-242026-02-02. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. This bulletin announces the design change made to the high-pressure fuel pump developed to prevent DTC P0087 (Fuel Rail/System Pressure – Too Low Bank 1).
15-246-19R2026-02-02. Service bulletin. ELECTRICAL SYSTEM. This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the vehicles listed.
15-246-19R2026-01-06. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on models listed.
09-74-21R2026-01-06. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM. 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).
18-226-25R2026-01-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This Service Information Bulletin provides the Service Manual Correction to the diagnostic procedure for DTC B2A16 (Immobilizer Key Collation Diagnosis).
18-228-25R2026-01-06. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1) are detected by the Engine Control Module (ECM).
05-84-21R2026-01-06. Service bulletin. SUSPENSION. This bulletin announces availability of new front wheel hub assemblies incorporating bearing surfaces having increased resistance to imperfections resulting from shock loads.
15-333-252026-01-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
Subaru Tech Tips (Article2025-12-01. Other. UNKNOWN OR OTHER. Subaru service article locator.
12-275-252025-12-01. Service bulletin. STRUCTURE:BODY. This Bulletin announces a new diagnostic procedure for addressing NVH (Noise, Vibration, and Harshness) originating from the roof area.
18-228-252025-12-01. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1) are detected by the Engine Control Module (ECM).
Subaru Tech Tips (Article2025-12-01. Other. UNKNOWN OR OTHER. Subaru service article locator.
12-273-252025-12-01. Service bulletin. SEATS. This bulletin announces a design change to the driver front lower seat cushion cover, addressing cases of tearing at the bottom corner of the cushion in vehicles equipped with a thigh extension.
07-213-22R2025-12-01. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces a new Genuine Subaru Replacement battery for use in applications where the current SOA821B700 battery is specified.
15-308-23R2025-11-04. Service bulletin. ELECTRICAL SYSTEM. This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw (dark/standby current) in vehicles experiencing battery drain when the ignition is off, leading to no-start conditions or frequent jump-starts.
15-130-08R2025-11-04. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on the load carrying capacity reduced label when a port-installed or retailer-installed accessory exeeds 1.5 percent of the GVWR or 100 pounds, which ever is lower.
16-151-24R2025-11-04. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR690 model CVT transmissions used in the models listed.
15-319-24R2025-11-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This bulletin announces the diagnostic procedures to be followed when encountering cases of the Remote Engine Start (RES) system being the only non-functioning feature with telematics.
Subaru Tech Tips (Article2025-11-04. Other. UNKNOWN OR OTHER. Subaru tech tips newsletter article locator.

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