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2026 Subaru WRX TSBs

46 Technical Service Bulletins across 13 categories

Infotainment

7 bulletins
11037927

This bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns.

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This is an revised version of the original bulletin.

11037920

"This bulletin announces a design change to the cord assembly that connects the Center Infotainment Display (CID) to the...

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CCU, addressing reports of CID screen flickering."

11036813

This bulletin announces a design change to the cord assembly that connects the Center Infotainment Display (CID) to the...

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CCU, addressing reports of CID screen flickering.

11036803

This bulletin announces a reprogramming file availability and provides a software update installation procedure to...

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optimize the new Gen 4.5 Denso CP1.5 Audio and Navigation head units utilized in the models listed. This is an revised version of the original bulletin.

11036796

This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns.

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(This is an revised version of the original bulletin.)

11035631

This bulletin provides instruction for use (FOTA) of a new reprogramming procedure to optimize the Denso Gen 4.5 Audio...

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and Navigation system utilized in the models listed. (This is an revised version of the original bulletin).

11034237

"This bulletin provides a new diagnostic procedure for vehicles equipped with a Denso CP 1, 1.5 and 2.5 head units to...

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provide an enhanced version of the troubleshooting steps for Sound does not come out from the speaker."

Pre-Delivery & Maintenance

7 bulletins
11034247

This Service Information Bulletin was developed to provide removal and installation tips to be followed when working...

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with EyeSight Stereo Cameras.

11033069

This bulletin contains additional information for recommended materials listed in the Service Manuals for individual...

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models.

11032039

This bulletin contains additional information for recommended materials listed in the Service Manuals for individual...

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models.

11030561

This announcement provides information on the use of aftermarket services or tools for programming immobilizer...

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keys/fobs.

11030557

This bulletin contains additional information for recommended materials listed in the Service Manuals for individual...

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models.

11027986

This Subaru service and technical support line newsletter provides information on the next phase of TechShare.

11027083

This Service Information Bulletin provides the Service Manual Correction to the diagnostic procedure for DTC B2A16...

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(Immobilizer Key Collation Diagnosis).

Other

6 bulletins
11037929

This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.

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This is an revised version of the original bulletin.

11036820

This bulletin announces design changes to the front seat bottom heat unit.

11036794

Techtips newsletter locator index.

11036789

This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.

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This is an revised version of the original bulletin

11030567

This bulletin contains information to help when attempting to complete the STARLINK Telematics subscription process, an...

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Error Code 202 and / or 204 may occur preventing the process from completing successfully

11027073

This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the...

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proper exchange procedure.

Transmission

4 bulletins
11037942

This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.

11036804

This Announcement provides diagnostic assistance for CVT issues.

11034271

This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR690 model...

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CVT transmissions used in the models listed. (This is an revised version of the original bulletin.)

11033056

This announcement provides information on the remanufactured CVT transmission program.

Electrical

4 bulletins
11037938

"This Bulletin announces additional troubleshooting steps for the following DTCs: DTC C1956: RH Actuator Circuit DTC...

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C1957: LH Actuator Circuit"

11036807

This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw (dark/standby current)...

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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.

11034241

This bulletin announces the availability of new reprogramming files developed to address cases in which the following...

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DTCs are detected by the Electric Control Damper Control Unit (ECU Damper).

11033051

This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER...

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CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT) are detected by Keyless Access with Push Button Start(KACM).

Engine

4 bulletins
11034269

This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon...

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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.)

11034264

This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon...

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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.)

11032040

This bulletin announces the service manual correction regarding clutch master cylinder reservoir service procedures.

11027982

This Bulletin provides the diagnostic procedure for the STARLINK Remote Engine Start (RES).

Software & Calibration

3 bulletins
11037943

This announcement provides information on a new software update for the Midtronics Dss and DCA machines.

11037930

This announcement provides an update to all 2027 model year Subaru warranty coverages for wear items and adjustments.

11027981

This announcement has been created to address difficulties with software updates on Subaru Select Monitors with DST-010...

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interface firmware has been updated.

Body & Paint

3 bulletins
11037940

This bulletin provides paint code information for 2027 model year vehicles.

11034249

This announcement is requesting retailer staff to retain the EyeSight protective hood covers from Generation 4 EyeSight...

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cameras.

11033062

This bulletin announces the recommended cleaning procedures to followed when encountering vehicles with long time...

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exposure to pollen on painted surfaces on vehicles imported from Japan.

Fuel System

2 bulletins
11036811

This service bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup.

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This is an revised version of the original bulletin.

11034257

This bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup.

Tires & Wheels

2 bulletins
11032034

This Service Information Bulletin was developed to provide interim guidance for vehicles exhibiting DTC B2A20.

11029347

This Service Information Bulletin was developed to provide interim guidance for 2026 model year vehicles exhibiting DTC...

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B2A20 with gen 4 Telematics.

HVAC & Climate

2 bulletins
11030560

This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance...

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concerns possibly resulting from an undetected A/C refrigerant leak.

11029329

This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance...

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concerns possibly resulting from an undetected A/C refrigerant leak.

Air Bags & Safety

1 bulletin
11034256

This bulletin announces a change in the seat belt warning buzzer intervals in the inspection procedure found in the Service Manual.

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(This is an revised version of the original bulletin.)

Steering

1 bulletin
11032035

This Bulletin provides the diagnostic procedures to be followed when addressing customer concerns of steering...

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wheel/vehicle body vibration when driving at highway speeds when tire/wheel balance is suspected.