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Service bulletins for the 2018 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.

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

By type

By component

By trouble code

Bulletins, newest first
15-302-222022-09-08. 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.
07-207-22R2022-09-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces a warranty extension information regarding 12 Volt vehicle batteries.
Subaru Tech Tips2022-09-08. Service bulletin. EQUIPMENT. Special Edition, 2012 current model subaru evaporative diagnostics and smoke testing.
15-211-17R2022-09-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the Harman Gen 3 Audio and Navigation head units utilized in the models as listed.
16-132-20R2022-08-02. Service bulletin. EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. This 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 used in the models listed.
15-298-222022-08-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; COMMUNICATION:MANUFACTURER TELEMATICS. This 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.
05-88-212022-08-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION. This bulletin announces a design change made to the front stabilizer bushings.
15-211-17R2022-07-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the Harman Gen 3 Audio and Navigation head units utilized in the models as listed.
07-162-19R2022-06-03. Service bulletin. EQUIPMENT; LATCHES/LOCKS/LINKAGES:DOORS:LOCK; ELECTRICAL SYSTEM. This bulletin announces availability of reprogramming files to optimize the Body Integrated Unit (BIU) operation of the automatic door lock (auto-lock / unlock) feature.
12-203-16R2022-06-03. Service bulletin. SEAT BELTS. This bulletin provides a procedure to address customer concerns of a squeaking sound originating from where the front seat belt buckle assembly attaches to the seat frame.
WRG-21R2022-06-03. Service bulletin. FUEL SYSTEM, GASOLINE. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019-2020 MY Ascent, 2018-2019 MY BRZ, 2018 MY Forester (Turbo), 2018-2020 MY Impreza, 2018-2020 MY Legacy, 2018-2020 MY Outback, and 2018-2019 MY WRX vehicles in which the fuel pump may become inoperative.
16-112-18R2022-06-03. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin announces a design change to the CVT select lever mechanism in response to isolated customer concerns of not being able to remove the key from the ignition switch when the vehicle is in Park.
15-211-17R2022-05-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the Harman Gen 3 Audio and Navigation head units.
09-87-222022-05-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces availability of new reprograming files for the Engine Control Module (ECM).
18-223-222022-05-03. Service bulletin. EQUIPMENT. The purpose of this bulletin is to provide a description of current changes to Service Manuals available via the Subaru Technical Information System (STIS) web site.
09-83-21R2022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin announces design change to the water pump assembly.
15-293-222022-04-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin outlines the operating characteristics of the Remote Climate Control operation on hybrid vehicles.
15-192-22R2022-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin has been developed to outline the steps for gathering basic essential information during diagnosis and repair of the Infotainment concerns. (Applicable to all models with Harman or Denso CP1 Infotainment).
15-240-19R2022-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressing customer concerns.
16-132-20R2022-03-04. Service bulletin. POWER TRAIN. This 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.
Subarunet Announ2022-03-04. Service bulletin. POWER TRAIN. WRK-21 CVT Chain Guide Breakage Recall - Customer communications and rental.
15-291-222022-03-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Going forward when a customer’s vehicle is equipped with a DCM that does not have Software version ID DCM_06.00.17_20190816 installed and they wish to subscribe to Starlink Telematics Service, the DCM must be replaced.
03-87-212022-02-04. Service bulletin. POWER TRAIN. This bulletin provides a repair procedure for R152 type rear differentials.
15-240-19R2022-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency.
16-132-20R2022-02-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN:AUTOMATIC TRANSMISSION. This 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.

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