2020 Subaru Impreza Technical Service Bulletins

407 technical service bulletins (TSBs) are on record for the 2020 Subaru Impreza. 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.

• 10188170Feb 10, 2021Equipment, Electrical system. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units.
• 10188168Feb 5, 2021Electrical system, Equipment. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency.
• 10188216Feb 3, 2021Electrical system, Engine cooling. This bulletin announces the 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.
• 10186436Jan 28, 2021Electrical system. This bulletin announces a design change made to the power window main switches.
• 10186434Jan 28, 2021Equipment. 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.
• 10186416Jan 18, 2021Transmission and drivetrain. 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.
• 10186426Jan 14, 2021Electrical system. This bulletin provides insight in response to both customer and retailer feedback resulting from the use of OBD-II port connected devices.
• 10186391Jan 14, 2021Electrical system. This bulletin provides information related to error code 202 and/or 204 generated during the Gen 2 Telematics subscription process. This bulletin is applicable to all 2019-2021MY vehicles equipped with a Gen. 2 Telematics System.
• 10186380Jan 14, 2021Electrical system, Equipment. This bulletin provides an overview and basic instructions for use of the “Destination to Vehicle” feature of the Gen 2 Telematics system.
• 10186379Jan 14, 2021Electrical system. This 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.
• 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.
• 10186377Jan 14, 2021Electrical system. This bulletin has been developed for use as a quick reference tool to aid in diagnosing operational concerns of the Gen 2 Telematics system's remote access features.
• 10186355Jan 7, 2021Electrical system, Equipment. Reprogramming File Availability for Optimization of Harman Gen 3.1 and Gen 3.1α Audio and Navigation Head Units.
• 10186348Jan 4, 2021Equipment, Electrical system. The purpose of this bulletin is to provide replacement key and immobilizer information.
• 10185089Dec 29, 2020Equipment, Transmission and drivetrain. This Service Information Bulletin provides updated diagnostic procedures to follow when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions.
• 10185088Dec 21, 2020Electrical system, Equipment. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units.
• 10185084Dec 15, 2020Tires. Please be advised that Continental Tire the Americas, LLC (CTA) is currently in the process of mailing recall notification letters to potentially affected owners of 2020MY Subaru Impreza vehicles.
• 10185076Dec 14, 2020Electrical system, Equipment. This bulletin provides information related to error code(s) 202 and/or 204 generated during the Gen 2 telematics subscription process.
• 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.
• 10183708Nov 23, 2020Equipment. Map update for Harman Gen 3.1 Navigation Equipped Head Units.
• 10183703Nov 18, 2020Tires. Continental Tire the Americas, LLC (CTA) has issued a safety recall for multiple tire lines, within the filing of NHTSA safety recall ID 20T-018. One of the tire lines included in CTA’s recall, the Continental ProContactTM TX P205/55R16 89V tire, was an OE tire for Subaru installed on certain 2020 MY Impreza vehicles equipped with 16-inch wheels.
• 10183714Nov 9, 2020Transmission and drivetrain. This Service Information Bulletin provides corrected diagnostics containing a revised flow for certain CVT solenoid related DTCs.
• 10183696Nov 9, 2020Wheels, Tires. Continental Tire the Americas, LLC (CTA) has issued a safety recall for multiple tire lines, within the filing of NHTSA safety recall ID 20T-018. One of the tire lines included in CTA’s recall, the Continental ProContactTM TX P205/55R16 89V tire, was an OE tire for Subaru installed on certain 2020 MY Impreza vehicles equipped with 16-inch wheels.
• 10183407Nov 5, 2020Tires, Equipment. STOP SALE/Safety Recall: WRG-20 Continental Tire Recall 20T-018 Please be advised that Continental Tire the Americas, LLC (CTA) has issued a safety recall for multiple tire lines.
• 10183691Nov 4, 2020Suspension, Body and structure, Equipment. This Service Information Bulletin outlines design changes made to the rear frame section weld nuts and the mounting bolts used to secure the rear stabilizer bar brackets.
• 10182249Oct 30, 2020Electrical system, Equipment. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency.
• 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.
• 10182246Oct 27, 2020Equipment, Engine cooling. This bulletin provides a revised service procedure to follow when repairing minor coolant seepage identified to be coming from the air plug at the top of the radiator.
• 10182242Oct 26, 2020Electrical system, Equipment. This Service Information Bulletin provides corrected and updated procedures to follow when replacing the combination meter assembly.
• 10182222Oct 14, 2020Equipment, Seats. This bulletin announces a design change made to the front seat backrest frame assemblies in response to a limited number of customer reports of a squeaking sound heard when leaning back in the front seats.
• 10182214Oct 13, 2020Tires, Electrical system. This Service Information Bulletin announces additional diagnostic procedures for TPMS related DTC C2921 on the applicable models listed.
• 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.
• 10180739Sep 22, 2020Electrical system. Update your STARLINK Multimedia Software and Navigation Maps.
• 10180738Sep 22, 2020Electrical system. Update for STARLINK Multimedia Software. (with 7-inch or 8-inch display)
• 10180730Sep 22, 2020Electrical system, Equipment. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimized efficiency.
• 10180733Sep 18, 2020Equipment. This bulletin provides a description of current changes to Service Manuals.
• 10180731Sep 11, 2020Engine cooling. This bulletin announces availability of new intake manifold assemblies.
• 10179429Aug 31, 2020Equipment, Electrical system. Map Data Update Procedure for Harman Gen 3.1 Navigation Equipped Head Unts (H/U).
• 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.
• 10179423Aug 31, 2020Electrical system. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models as listed.
• 10179419Aug 27, 2020Body and structure. This bulletin announces design changes made to the rear quarter glass assembly in response to a small number of reports describing a rattling - type sound origination from the lower molding.
• 10179378Aug 4, 2020Equipment. Special Service Tools Cross Reference List.
• 10177834Jul 31, 2020Equipment, Engine cooling. This bulletin announces availability of new intake manifold assemblies which include enhanced TGV assemblies to address related DTCs which may set as a result of lubricant contained within the actuator component of the TGV leaking and being drawn into the engine.
• 10177833Jul 28, 2020Electrical system, Equipment. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models listed.
• 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).
• 10177818Jul 13, 2020Equipment, Electrical system. This bulletin contains inllustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.

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