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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.

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
SubaruNet Announ2023-02-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. UPDATE Safety Recall: WRL-22 PTC Heater Ground Bolt (Owner notification)
SubaruNet Announ2023-01-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Service, Parts, and Claim Instructions For detailed service, parts, and claim instructions, please refer to the WRL-22 Product Campaign Bulletin which is now available on STIS.
WRL-222023-01-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. "Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019-2022 model year Ascent vehicles. (PTC Heater)"
SubaruNet Announ2023-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019-2022 model year Ascent vehicles. (WRL-22)
15-236-18R2022-12-02. 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 as listed.
15-240-19R2022-12-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces availability of new Harman audio unit amplifier units with revised internal logic designed to optimize efficiency while addressin customer concerns.
15-282-21R2022-12-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Bulletin provides additional procedures and a detailed flow chart to use when diagnosing customer concerns regarding operation of the STARLINK RES feature.
07-207-22R2022-12-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. In the interest of customer satisfaction, Subaru of America, Inc. is extending the New Car Basic Warranty coverage for the 12 Volt batteries used in the above listed models and model years beyond the original three (3) years or thirty six thousand miles (36,000), whichever comes first.
07-199-21R2022-12-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Bulletin provides additional information for the diagnostic procedures concerning measurement of Dark Current (a.k.a. Standby Current).
15-251-19R2022-11-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16.
07-178-21R2022-11-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin is being released as guidance for proper testing and charging of vehicle batteries.
07-199-21R2022-11-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Bulletin provides additional information for the diagnostic procedures concerning measurement of Dark Current (a.k.a. Standby Current).
SubaruNet Announ2022-10-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Battery Drain Class Action Settlement- Warranty Extension Training.
07-207-22R2022-10-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin announces a warranty extension information regarding 12 Volt vehicle batteries.
18-225-22R2022-10-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Service Bulletin is to inform you of the diagnosis procedure of the Harman Infotainment System when DTC B2255 is detected.
01-167-08R2022-09-08. Service bulletin. EQUIPMENT. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
15-302-222022-09-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure.
18-208-222022-09-08. Service bulletin. EQUIPMENT. 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.
15-236-18R2022-09-08. 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 as listed.
Subaru Tech Tips2022-09-08. Service bulletin. EQUIPMENT. Special Edition, 2012 current model subaru evaporative diagnostics and smoke testing.
15-282-21R2022-09-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Bulletin provides additional procedures and a detailed flow chart to use when diagnosing customer concerns regarding operation of the STARLINK RES feature.
SubaruNet Announ2022-08-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN. Recently following the release of the WRK-21 CVT Chain Guide Breakage, SOA’s Techline started to receive some retailer inquiries regarding TCMs not accepting the testing/ temporary pak file or the final pak file and then failing to communicate.
16-132-20R2022-08-02. Service bulletin. EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. 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 used in the models listed.
15-298-222022-08-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; COMMUNICATION:MANUFACTURER TELEMATICS. This Bulletin announces the preferred practices to be used when handling vehicles equipped with Gen2 Telematics which are enrolled in the Subaru STARLINK® Security Plus Service featuring Stolen Vehicle Recovery Plus with Immobilizer.
16-139-222022-08-02. Service bulletin. EQUIPMENT; POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. The WRK-21 recall includes TCM reprogramming to prevent CVT chain slip. If, during the recall inspection, a vehicle is confirmed to have already experienced severe enough CVT chain slip, the CVT assembly will be replaced.

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