2019 Subaru Legacy Technical Service Bulletins

430 technical service bulletins (TSBs) are on record for the 2019 Subaru Legacy. 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.

• 10198680Jun 16, 2021Electrical system. This bulletin announces availability of a new reprograming file for the telematics system.
• 10198774Jun 8, 2021Electrical 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.
• 10198749Jun 7, 2021Engine cooling, Equipment. This bulletin is to advise of SOA’s revised catalytic converter recycling program shipping procedure.
• 10198741Jun 1, 2021Engine cooling. This bulletin outlines changes in the service procedure for engine oil pressure inspection.
• 10194823May 3, 2021Equipment. Description of current changes to Service Manuals available via the Subaru Technical Information System (STIS) web site.
• 10191664Apr 27, 2021Electrical system, Wheels. This bulletin announces a design change made to the TPMS valve assemblies.
• 10191591Apr 21, 2021Electrical system. This bulletin provides additional procedures and a detailed flow chart to use when diagnosing customer concerns regarding operation of the STARLINK RES feature.
• 10191586Apr 9, 2021Equipment. This bulletin announces availability of new audio unit amplifier units with revised internal logic designed to optimize efficiency.
• 10188201Feb 26, 2021Equipment. This bulletin announces availability of new front wheel hub assemblies incorporating bearing surfaces having increased resistance to imperfections resulting from shock loads.
• 10188160Feb 23, 2021Equipment, Transmission and drivetrain. This Service Information 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.
• 10188173Feb 12, 2021Equipment, Electrical system. This bulletin provides helpful information about operating conditions observed in the field for Technicians to use when diagnosing customer concerns which may arise while operating Harman Gen 3 Navigation and Display Audio systems.
• 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.
• 10188163Feb 4, 2021Electrical system, Engine cooling. This bulletin announces availability of reprogramming files to optimize the Engine Control Module (ECM). The new files will address DTC P0116 and hard starting in cold temperature concerns when an accessory engine block heater is utilized.
• 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.
• 10186399Jan 26, 2021Equipment, Seats. This bulletin announces a design change made to the front seat hinge bolts.
• 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.
• 10186382Jan 15, 2021Latches, locks and linkages, Electrical system, Body and structure. This bulletin provides details regarding the cause of a whining-type sound customers may have concern about when operating their power door locks (lock and/or unlock).
• 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.
• 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.
• 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.
• 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, 2020Equipment, 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.
• 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.
• 10185082Dec 15, 2020Equipment, Seats, Seat belts. 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.
• 10185076Dec 14, 2020Equipment, Electrical system. This bulletin provides information related to error code(s) 202 and/or 204 generated during the Gen 2 telematics subscription process.
• 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.
• 10183708Nov 23, 2020Equipment. Map update for Harman Gen 3.1 Navigation Equipped Head Units.
• 10183704Nov 20, 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.
• 10183702Nov 16, 2020Equipment, Transmission and drivetrain. This bulletin announces the availability of new propeller shaft assemblies.
• 10183714Nov 9, 2020Transmission and drivetrain. This Service Information Bulletin provides corrected diagnostics containing a revised flow for certain CVT solenoid related DTCs.
• 10182249Oct 30, 2020Equipment, Electrical system. 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.
• 10182232Oct 22, 2020Suspension, Steering, Equipment. This bulletin announces availability of new Front Stabilizer Link assemblies equipped with a new dust boot material having enhanced durability and grease retention characteristics.
• 10182223Oct 16, 2020Engine, Equipment, Electrical system. This Service Information Bulletin provides an important step currently missing from the Service Manual diagnostics for DTC B1572 “IMM CIRCUIT EXCEPT ANTENNA CIRCUIT”.
• 10182214Oct 13, 2020Tires, Electrical system. This Service Information Bulletin announces additional diagnostic procedures for TPMS related DTC C2921 on the applicable models listed.
• 10182189Oct 2, 2020Fuel system, Equipment. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019 model year Ascent, Impreza, Legacy, and Outback vehicles in which the fuel pump may become inoperative.
• 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.
• 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.

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