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Service bulletins for the 2019 Subaru Ascent

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

638 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
Subaru Starlink2020-10-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Update your STARLINK Multimedia Software and Navigation Maps.
Subaru Starlink2020-10-05. Service bulletin. ELECTRICAL SYSTEM. Update for STARLINK Multimedia Software. (with 7-inch or 8-inch display)
15-240-19R2020-10-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimized efficiency.
15-255-19R2020-09-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Map Data Update Procedure for Harman Gen 3.1 Navigation Equipped Head Unts (H/U).
15-271-202020-09-04. Service bulletin. ELECTRICAL 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.
15-236-18R2020-09-04. Service bulletin. 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 utilized in the models as listed.
07-155-19R2020-09-04. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. This bulletin replaces TSB 07-143-18R and announces additional changes made to the PRG control module.
15-236-18R2020-08-03. Service bulletin. ELECTRICAL 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.
15-238-19R2020-08-03. Service bulletin. ELECTRICAL 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.
15-266-202020-08-03. Service bulletin. EQUIPMENT; 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.
15-267-202020-08-03. Service bulletin. ELECTRICAL 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.
15-264-20R2020-08-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. 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.
15-242-19R2020-08-03. Service bulletin. EQUIPMENT; 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.
15-219-18R2020-08-03. Service bulletin. ELECTRICAL SYSTEM. This Service information bulletin provides Telematics system/generation applicability.
15-195-16R2020-08-03. Service bulletin. ELECTRICAL SYSTEM. This Service Information bulletin provides IMPORTANT information regarding diagnosis and replacement (when applicable) of the STARLINK Telematics Data Communication Module (DMC).
15-240-19R2020-08-03. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; 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.
07-177-202020-06-02. Service bulletin. ELECTRICAL 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.
07-155-19R2020-06-02. Service bulletin. LATCHES/LOCKS/LINKAGES; STRUCTURE:BODY:TAILGATE; ELECTRICAL SYSTEM. This bulletin announces a design change made to the PRG control module.
12-288-202020-06-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:MECHANICAL; SEATS. 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.
15-195-16R2020-05-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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.
15-219-18R2020-05-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin is designed to address an error code 202 and/or 204 when attempting to complete the STARLINK Telematics subscription process.
07-162-19R2020-05-04. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/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.
16-128-202020-05-04. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This bulletin announces availability of a new transmission harness for use when diagnosis of DTC P0842 - TRANSMISSION FLUID PRESSURE SENSOR/ SWITCH "A" CIRCUIT LOW.
15-240-19R2020-04-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize effciency while addressing customer concerns.
15-262-202020-04-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin announces the addition of diagnostics for DTC B224C: RADIO ANTENNA FAULTS to the service manuals of the models listed.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.