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Service bulletins for the 2018 Subaru WRX

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.

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

By type

By component

By trouble code

Only bulletins with type: Service bulletin are shown. Show all

Bulletins, newest first
13-109-262026-10-05. Service bulletin. UNKNOWN OR OTHER. This bulletin provides paint code information for 2027 model year vehicles.
18-244-262026-10-05. Service bulletin. ELECTRICAL SYSTEM. "This Bulletin announces additional troubleshooting steps for the following DTCs: DTC C1956: RH Actuator Circuit DTC C1957: LH Actuator Circuit"
15-333-25R2026-10-05. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the original bulletin.
15-304-22R2026-10-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. This is an revised version of the original bulletin.
15-308-23R2026-09-03. 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.This is an revised version of the original bulletin.
15-304-22R2026-09-03. Service bulletin. ELECTRICAL SYSTEM. This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. (This is an revised version of the original bulletin.)
15-333-25R2026-09-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the original bulletin
02-193-24R2026-07-02. Service bulletin. ENGINE. 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). (This is an revised version of the original bulletin.)
09-74-21R2026-07-02. 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). (This is an revised version of the original bulletin.)
01-167-08R2026-06-01. Service bulletin. UNKNOWN OR OTHER. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
02-193-24R2026-06-01. Service bulletin. ENGINE. 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).
18-230-262026-06-01. Service bulletin. ENGINE. This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT) are detected by Keyless Access with Push Button Start(KACM).
03-97-262026-05-04. Service bulletin. POWER TRAIN. This bulletin announces the service manual correction regarding clutch master cylinder reservoir service procedures.
01-167-08R2026-05-04. Service bulletin. UNKNOWN OR OTHER. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
05-97-262026-05-04. Service bulletin. STEERING; WHEELS. This Bulletin provides the diagnostic procedures to be followed when addressing customer concerns of steering wheel/vehicle body vibration when driving at highway speeds when tire/wheel balance is suspected.
07-240-26R2026-05-04. Service bulletin. UNKNOWN OR OTHER. This Service Information Bulletin was developed to provide interim guidance for vehicles exhibiting DTC B2A20.
WRA-262026-04-02. Service bulletin. ENGINE. In the interest of customer satisfaction, Subaru of America, Inc. (Subaru) is initiating a new voluntary emissions recall for certain 2018 model year WRX and Forester vehicles and certain 2019 MY WRX equipped with a 2.0L turbo engine.
15-219-18R2026-04-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains information to help when attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process from completing successfully
10-105-25R2026-04-02. 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.
01-167-08R2026-04-02. Service bulletin. UNKNOWN OR OTHER. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
07-240-26R2026-03-03. Service bulletin. ELECTRICAL SYSTEM. This Service Information Bulletin was developed to provide interim guidance for 2026 model year vehicles exhibiting DTC B2A20 with gen 4 Telematics.
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.
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.
15-300-22R2026-02-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES).
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).

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