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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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Bulletins, newest first
WRL-22R2023-03-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019-2022 model year Ascent vehicles.
09-98-222023-03-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin announces the availability of new reprograming files for the Engine Control Module (ECM).
07-219-232023-03-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin announces availability of a new Genuine Subaru Alternative Replacement Battery introduced to satisfy current supply demands.
15-236-18R2023-03-02. 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.
07-207-22R2023-03-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Subaru Battery Drain Product Liability Litigation.
SubaruNet Announ2023-02-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. WRL-22 PTC Heater Ground Bolt left side sill cover removal.
WRK-21/22R2023-02-06. Service bulletin. POWER TRAIN. Subaru of America, Inc. (Subaru) has initiated this safety and emissions Recall for certain 2019 - 2020 model year Ascent vehicles, 2020-2021 model year turbo Legacy vehicles, and 2020-2021 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break.
16-132-20R2023-02-06. Service bulletin. POWER TRAIN. 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 used in the models listed.
WRL-22R2023-02-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019-2022 model year Ascent vehicles.
16-139-22R2023-02-06. Service bulletin. POWER TRAIN. CVT Assembly (WRK-21) Warranty Extension.
16-136-22R2023-02-06. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a temporary repair procedure to address vibrations and/or judder concerns experienced on turns during acceleration.
10-92-19R2023-02-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces a change made to optimize the sealing of the pressure switch connector used on a metal refrigerant pipe on the models listed.
07-207-22R2023-02-06. Service bulletin. ELECTRICAL SYSTEM. Subaru Battery Drain Product Liability Litigation.
SubaruNet Announ2023-02-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. UPDATE Safety Recall: WRL-22 PTC Heater Ground Bolt (Owner notification)
WRK-21/222023-01-05. Service bulletin. POWER TRAIN. "Subaru of America, Inc. (Subaru) has initiated this safety and emissions Recall for certain 2019 - 2020 model year Ascent vehicles, 2020-2021 model year turbo Legacy vehicles, and 2020-2021 model year turbo Outback vehicles in which the Continuously Variable Transmission (CVT) chain may slip and/or break."
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)
16-132-20R2022-12-02. Service bulletin. POWER TRAIN. 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.
07-184-20R2022-12-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin announces a design change made to the power window main switches used in the models listed.
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.
Subarunet Announ2022-12-02. Service bulletin. POWER TRAIN. This communication announces a new procedure for retailers to follow in the event their WRK-21 videoscope requires service or replacement.
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.

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