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Service bulletins for the 2018 Subaru Impreza

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.

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

By type

By component

By trouble code

By topic

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.
05-62-18R2026-09-03. Service bulletin. STRUCTURE:BODY. This bulletin provides a procedure to address customer concerns of surface rust accumulating in the top center retaining nut area of the front strut mounts. This is an revised version of the original bulletin.
16-158-262026-09-03. Service bulletin. POWER TRAIN. This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR580 model CVT transmissions used in the models listed.
16-156-25R2026-09-03. Service bulletin. POWER TRAIN. This bulletin announces a design change made to the CVT Control Valve Body. The updated valve body incorporates an enhanced valve sleeve to improve durability. This is an revised version of the original bulletin.
16-154-25R2026-09-03. Service bulletin. POWER TRAIN. This Service Information Bulletin announces the release of a new diagnostic assistance application for TR690 and TR580 CVT-equipped vehicles. 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.
16-132-20R2026-09-03. 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 used in the models listed. 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
09-123-24R2026-08-04. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. 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). (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.)
09-81-21R2026-07-02. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin announces design changes made to the fuel injector and fuel pipe in response to the DTCs listed DTC P030* / Engine Knocking / DTC P219C-D-E-F. (This is an revised version of the original bulletin.)
16-156-25R2026-07-01. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This bulletin announces a design change made to the CVT Control Valve Body which incorporates an enhanced valve sleeve to improve durability. (This is an revised version of the orignal 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).
16-156-25R2026-06-01. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin announces a design change made to the CVT Control Valve Body which incorporates an enhanced valve sleeve to improve durability.
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.

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