2019 Subaru Ascent Technical Service Bulletins

638 technical service bulletins (TSBs) are on record for the 2019 Subaru Ascent. 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.

• 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.
• 10183708Nov 23, 2020Equipment. Map update for Harman Gen 3.1 Navigation Equipped Head Units.
• 10183702Nov 16, 2020Equipment, Transmission and drivetrain. This bulletin announces the availability of new propeller shaft assemblies.
• 10183698Nov 10, 2020Electrical system, Equipment, Transmission and drivetrain. Subaru of America, Inc. (Subaru) is recalling certain 2019 model year Ascent vehicles in which midjoint of the transmission hydraulic sensor harness was made with dissimilar materials (tinplate and copper) which may cause an oxide film to form. If an oxide film forms, the electrical resistance may increase, potentially causing an incorrect measurement of the hydraulic pressure.
• 10183714Nov 9, 2020Transmission and drivetrain. This Service Information Bulletin provides corrected diagnostics containing a revised flow for certain CVT solenoid related DTCs.
• 10183694Nov 9, 2020Latches, locks and linkages, Equipment, Body and structure. This bulletin announces design changes made to the trim cover for the rear gate PRG control switches located on the bottom of the rear gate inner trim panel.
• 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.
• 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.
• 10182212Oct 9, 2020Electrical system, Transmission and drivetrain. This bulletin announces availability of a new transmission harness for use when diagnosis of DTC P0842 determines the sensor itself is OK but the transmission wiring harness is NG.
• 10182176Oct 6, 2020Electrical system, Latches, locks and linkages, Body and structure. This bulletin replaces TSB 07-143-18R and announces additional changes made to the PRG control module.
• 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.
• 10179415Aug 25, 2020Electrical system, Latches, locks and linkages. This bulletin replaces TSB 07-143-18R and announces additional changes made to the PRG control module.
• 10179413Aug 25, 2020Body and structure, Equipment. IMPORTANT: This bulletin has been replaced by TSB 07-155-19R which includes all the latest service and parts ordering information.
• 10179409Aug 18, 2020Brakes. This bulletin announces availability of new front brake pad kit established to address concerns of a squeaking sound heard when stopping.
• 10179378Aug 4, 2020Equipment. Special Service Tools Cross Reference List.
• 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.
• 10177828Jul 21, 2020Electrical system. IMPORTANT: This Service Information Bulletin has been removed following Software Version 6 release to the field. Please refer to TSb 15-211-17R for Gen 3.0 and TSB 15-236-18R for Gen 3.1 the update on this condition.
• 10177824Jul 17, 2020Equipment, Fuel system. To support the WRD-20 Fuel Pump Impeller Failure Campagn, a 20- minute videl along with a supporting post test assigned to all Dealer Service Technicians as 20L001010C - WRD-20 Fuel Pump Impeller Failure.
• 10177820Jul 17, 2020Electrical system. This Service information bulletin provides Telematics system/generation applicability.
• 10177826Jul 16, 2020Equipment, Electrical system. 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.
• 10177823Jul 16, 2020Fuel system. 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.
• 10177822Jul 14, 2020Electrical system, Equipment. The intent of this Service Information Bulletin is to provide Technicians and staff members who interact with the Telematics system insight to help address questions regarding opeation of the WiFi Hotspot feature.
• 10177821Jul 14, 2020Equipment, Electrical system. This Service Information Bulletin has been developed for use as a quick reference tool aid in diagnosing operational concerns of the Gen 2 Telematics system's remote access features.
• 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).
• 10177815Jul 8, 2020Equipment, Electrical system. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressing customer concerns.
• 10176029May 28, 2020Electrical system. This bulletin announces availability of a new 120V inverter assembly. The new inverter has been developed in response to a limited number of reports describing the overcurrent protection feature triggering at less than the 100W specification.
• 10176024May 19, 2020Seat belts. This service infromation bulletin provides an important precaution to follow whenever installing the front seat belt assembly retaining bolts located at the base of the "B" pillar.
• 10176017May 15, 2020Electrical system, Latches, locks and linkages, Body and structure. This bulletin announces a design change made to the PRG control module.
• 10176009May 11, 2020Latches, locks and linkages, Equipment. This bulletin announces availability of reprogramming files to optimize the Body Integrated Unit (BIU) opertation of the automatic door lock (auto-lock/unlock) feature.
• 10175966May 7, 2020Equipment, Fuel system. 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.
• 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.
• 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.
• 10174539Apr 29, 2020Fuel system. 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.
• 10174542Apr 26, 2020Fuel system. Parts Managers/Service Managers; Sales orders were placed and are currently being shipped directly to the retailers for all known SSLP and COP vehicles which fall under WRD-20.
• 10174534Apr 17, 2020Fuel system. 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.
• 10174510Apr 17, 2020Electrical system, Latches, locks and linkages, Equipment. This bulletin announces availability of reprogramming files to optimize the Body Integrated Unit (BIU) operation of the automatic door lock (auto-lock / unlock) feature.

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