2018 Subaru WRX Technical Service Bulletins

348 technical service bulletins (TSBs) are on record for the 2018 Subaru WRX. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10188164Feb 4, 2021Electrical system, Engine cooling. This bulletin announces availability of reprogramming files to optimize the Engine Control Module (ECM).
• 10187315Feb 1, 2021Equipment. To help reduce confusion and increase technician efficiency, Subaru of America, Inc. (SOA) has developed the following cross reference list to help locate the appropriate Special Service Tool.
• 10186347Jan 22, 2021Engine cooling. The purpose of this bulletin is to provide procedures for the diagnosis and repair of oil seepage which may be coming from the timing chain cover, front camshaft cap, camshaft carrier, and/or upper oil pan.
• 10186378Jan 14, 2021Electrical system, Equipment. This bulletin provides information related to the telematics system's Automatic Collision Notification (ACN) and Advanced Automatic Collision Notification (AACN) feature operation, diagnostic tips, and best practices.
• 10186366Jan 12, 2021Transmission and drivetrain, Equipment, Engine cooling. This bulletin announces a design change to the clutch release bearing.
• 10186363Jan 12, 2021Seat belts, Seats. 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.
• 10186348Jan 4, 2021Equipment, Electrical system. The purpose of this bulletin is to provide replacement key and immobilizer information.
• 10185092Dec 21, 2020Equipment, Electrical system. This bulletin announces new reprogramming file availability and the software installation procedure to address additional operational concerns received from the field and listed involving “Gen 2” F10 Navigation and Display Audio units with 7” display.
• 10185090Dec 15, 2020Wheels. This Service Information Bulletin announces a change made to the wheel lug nuts.
• 10185083Dec 15, 2020Seat belts, Equipment. 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.
• 10185067Dec 7, 2020Engine cooling, Body and structure. This bulletin announces a design change made to the front hood air intake duct.
• 10185066Dec 7, 2020Equipment, Seats. This bulletin provides a repair procedure to address a squeaking sound coming from the backrest hinge area of the front seats. The procedure applies to both manually and power operated seat assemblies.
• 10185062Dec 1, 2020Transmission and drivetrain. This bulletin has been developed in response to a small number of customer concerns regarding fluid seepage found coming from the CVT assembly.
• 10183697Nov 10, 2020Suspension. This bulletin announces design changes made to certain rear shock absorbers used on the models listed.
• 10183714Nov 9, 2020Transmission and drivetrain. This Service Information Bulletin provides corrected diagnostics containing a revised flow for certain CVT solenoid related DTCs.
• 10183713Nov 9, 2020Electrical system. This Service Information bulletin announces availability of an enhancement to the Gracenote database included in the vehicles listed above equipped with F10 7 Navigation and 7 Display Audio head units. When the user plays a pre-recorded CD, Gracenote recognizes the disc then shows the artist and track name information along with the album cover art on the head unit display (when available).
• 10183689Nov 4, 2020Transmission and drivetrain, Equipment. This bulletin provides additional repair procedures to follow when replacing a leaking clutch master cylinder on certain vehicles.
• 10182247Oct 29, 2020Equipment. 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.
• 10182192Oct 21, 2020Equipment, Electrical system. This bulletin announces availability of new A/C compressor assemblies designed to address customer concerns of reduced system performance accompanied by a rattling and/or scraping type sound.
• 10182229Oct 20, 2020Equipment, Body and structure. This bulletin outlines changes made to the rear shelf trim to address customer concerns of a rattling sound heard while driving over bumpy / rough roads.
• 10182218Oct 15, 2020Equipment, Electrical system. This bulletin announces the availability of reprogramming files to optimize the control module for the Vehicle Dynamics Control system (VDCCM). DTCs C1531 and/or C1741 may set, the Hill Holder warning lamp and cancellation alarm may activate and/or the VDC warning lamp can illuminate.
• 10182220Oct 13, 2020Electrical system, Equipment. This bulletin announces new reprogramming file availability and the software installation procedure to address additional operational concerns received from the field and listed involving “Gen 2” F10 Navigation and Display Audio units with 7” display.
• 10182187Oct 2, 2020Equipment. The purpose of this bulletin is to provide a desription of current changes to service manuals available via the Subaru Technical Information System (STIS) web site.
• 10180733Sep 18, 2020Equipment. This bulletin provides a description of current changes to Service Manuals.
• 10179426Aug 31, 2020Electrical system. This service information bulletin announces discontinuation of both the "Stitcher" app and the related News Radio feature from the STARLINK app lineup effective 12 midnight on Thursday, September 24, 2020.
• 10179422Aug 31, 2020Engine cooling. This bulletin announces availability of new master cylinder application shaft seals.
• 10179382Aug 12, 2020Brakes, Electronic stability control, Electrical system. This bulletin announces the availability of reprogramming files to optimize the control module for the Vehicle Dynamics Control system (VDCCM).
• 10179378Aug 4, 2020Equipment. Special Service Tools Cross Reference List.
• 10177820Jul 17, 2020Electrical system. This Service information bulletin provides Telematics system/generation applicability.
• 10177826Jul 16, 2020Electrical system, Equipment. This Service Information Bulletin provides helpful procedures and best practices to utilize when customers present with concerns relating to the operation of their Gen 2 Telematics system equipped Subaru.
• 10177825Jul 16, 2020Electrical system, Forward collision avoidance. This document discusses some of the conditions that may trigger an Automatic Collision Notification (CAN) (Gen1) or Advanced Automatic Collision Notification (AACN) (Gen2), without a collision, airbag deployment, or accident taking place.
• 10177819Jul 14, 2020Electrical system. This Service Information bulletin provides IMPORTANT information regarding diagnosis and replacement (when applicable) of the STARLINK Telematics Data Communication Module (DMC).
• 10176028May 26, 2020Brakes. This service Information bulletin provides precautions to follow when servicing the Brembo brake calipers utilized on the models listed. Because of their aluminum construction, it is critcal to take extra care when servicing.
• 10176022May 18, 2020Equipment, Seats. This Bulletin announces a design change made to the front seat backrest cover trim material on the models listed. The new material has enhanced wear resistance, especially in the side bolster area which may show wear over time from getting in and out of the seat.
• 10175977May 5, 2020Equipment, Seats, Electrical system. This bulletin announces a design change made to the Slide Rail components of the left and right front power seat frame / track assemblies used on the models listed.
• 10175969May 4, 2020Electrical system, Equipment. This service information bulletin announces availability of an enhancenment to the Gracenote database included in the vehicles listed equipped with F10 7" Navigation and 7" display audio head units.
• 10174543Apr 30, 2020Equipment. All Models (Vehicle Cleaning- COVID-19Best Practices)
• 10174537Apr 30, 2020Equipment, Electrical system. This service information bulletin provides important information regarding diagnosis and replacement (when applicable) of the STARLINK Telematics Data Communication Module (DCM). All models with STARLINK Telematics System.
• 10173193Mar 27, 2020Engine cooling. Update: Owner notification WUK-96 DIT exhaust pipe front (EPF) nut torque service campaign/voluntary emissions recall.
• 10173189Mar 26, 2020Equipment, Engine cooling. Subaru of America, Inc. (Subaru) is initiating a service campaign for certain 2015-2018 Forester 2.0L Turbo and 2016-2018 WRX models which may experience a loosening of the front exhaust pipe nuts.
• 10173186Mar 26, 2020Electrical system, Equipment. This service bulletin provides details of a correction to the diagnostic procedure for DTC B2350- REAR RADAR COMMUNICATION ERROR on the models listed.
• 10173127Mar 19, 2020Electrical system, Air bags, Equipment. This bulletin provides information regarding Event Data Recorder (EDR) functionality which has been incorporated into the airbag system.
• 10173117Mar 10, 2020Engine cooling, Electrical system, Equipment. This Bulletin provides information regarding DTC P0606 related specifically to the determination of this code on Forester Turbo and applicable WRX models.
• 10171934Feb 27, 2020Electrical system, Equipment. This bulletin announces new reprogramming file availability and the software installation procedure to address additional operational concerns received from the field and listed below involving an F10 Navigation and Display Audio units with 7' display.
• 10171950Feb 21, 2020Electrical system. This Service Information bulletin describes a change made to the labels applied to the push to start switches used on the models listed.
• 10171926Feb 21, 2020Transmission and drivetrain. This bulletin announces availability of new shift forks and the corresponding sleeve and hub assembly to address isolated customer concerns of a rattling / vibration -type sound from the shift knob. The sound is primarily reported while driving in 4th gear between 1900 and 2500 rpm.
• 10171930Feb 19, 2020Electrical system. This bulletin announces reprogramming file availability and the software installation procedure to address a group of operational concerns received from the field and listed below involving the Clarion Display Audio unit with 6.2" display.
• 10171923Feb 12, 2020Equipment, Electrical system. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
• 10171919Feb 11, 2020Engine cooling, Electrical system. This bulletin announces availability of reprogramming files to optimize the Engine Control Module (ECM). The new logic will address isolated concerns of a hard start condition occurring in cold weather (+10 degrees Fahrenheit or lower) and / or high-altitude areas. When this scenario occurs, the A/F learning control values move toward lean.
• 10171873Feb 7, 2020Engine cooling. Owner notification WUK-96 DIT exhaust pipe front (EPF) nut torque service campaign/voluntary emission recall.

← All problems reported for the 2018 Subaru WRX