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Service bulletins for the 2024 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.

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

By type

By component

By trouble code

Bulletins, newest first
02-192-24R2025-05-01. Service bulletin. ENGINE. This Bulletin announces the diagnostic procedures to be followed when diagnosing engine oil leakage on FA and FB type engines.
03-96-252025-05-01. Service bulletin. SUSPENSION; POWER TRAIN. This bulletin announces design changes made to the rear axle hubs. These changes have been implemented to reduce cases water intrusion further leading to harmonic, humming, and grinding type sounds heard from the axle hub while driving.
02-193-24R2025-05-01. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers).
14-31-252025-04-01. Service bulletin. UNKNOWN OR OTHER. This Bulletin announces availability of a User Guide and an informative video to supplement the recent releases to retailers of the SOA321152 and SOA321153 Terminal Test Kits.
12-265-252025-04-01. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. This bulletin announces design changes made to the Power Rear Gate Drive (PRG) Unit to address concerns of the power rear gate being inoperative.
15-305-22R2025-04-01. Service bulletin. ELECTRICAL SYSTEM. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4.5 Denso CP1.5 Audio and Navigation head units utilized in the models listed.
09-51-08R2025-04-01. Service bulletin. ENGINE. The purpose of this bulletin is to advise of SOA’s revised Catalytic Converter Recycling Program shipping procedure.
12-258-252025-04-01. Service bulletin. STRUCTURE:BODY; VISIBILITY/WIPER. This bulletin provides additional examples, diagnostics tips and installation tips as helpful aids to be used when working with sunroof seals and sunroof frame assemblies on Ascent models.
15-324-252025-04-01. Service bulletin. ELECTRICAL SYSTEM. This Service Information Bulletin details a new procedure for conducting a CommCheck on vehicles equipped with a GEN 3/GEN 3+ DCM.
15-304-22R2025-04-01. Service bulletin. ELECTRICAL SYSTEM. This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns.
01-167-08R2025-04-01. Service bulletin. UNKNOWN OR OTHER. This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
06-92-24R2025-04-01. Service bulletin. SERVICE BRAKES. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the front brake on 2019-24 model year Ascent models to 8 years (96 months) or 150,000 miles (whichever comes first) to address cases of front brake pulsation or squealing.
15-323-25R2025-04-01. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This bulletin announces availability of new combination meter reprogramming files developed to address cases of inaccurate fuel economy displayed on the Center Information Display (CID).
07-189-21R2025-04-01. Service bulletin. VISIBILITY/WIPER. This bulletin announces availability of new door window regulator assemblies and door glass run channel seals in response to limited concerns of erratic operation of the anti-entrapment feature and / or the door glass either not closing or closing very slowly.
12-262-252025-04-01. Service bulletin. STRUCTURE:BODY. This Bulletin announces diagnostic procedures to be followed when working with a Power Rear Gate (PRG).
15-219-18R2025-04-01. Service bulletin. ELECTRICAL SYSTEM. When attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process from completing successfully.
12-260-252025-04-01. Service bulletin. UNKNOWN OR OTHER. This bulletin announces the design change made to the left and right A-Pillar trim panels which will address cases of loose fitment.
07-189-21R2025-03-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER. This bulletin announces availability of new door window regulator assemblies and door glass run channel seals in response to limited concerns of erratic operation of the anti-entrapment feature and/or the door glass either not closing or closing very slowly.
02-193-24R2025-03-04. Service bulletin. ENGINE. This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers).
09-130-25R2025-03-04. Service bulletin. ENGINE. This bulletin announces the design change made to the exhaust manifold flange nuts. The material has been changed from a medium carbon steel to stainless steel.
09-130-25R2025-03-04. Service bulletin. ENGINE. This bulletin announces the design change made to the exhaust manifold flange nuts. The material has been changed from a medium carbon steel to stainless steel.
15-251-19R2025-03-04. Service bulletin. ELECTRICAL SYSTEM. "This Service Bulletin provides additional diagnostics to follow when addressing a Telematics-related DTC B2A16."
16-151-24R2025-02-04. Service bulletin. POWER TRAIN. This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR690 model CVT transmissions used in the models listed.
Subarunet Announcement2025-02-04. Other. UNKNOWN OR OTHER. This announcement is in regard to special service tool shipment will be shipped directly to the Subar retailers during February.
RC5 Head Unit OTA2025-02-04. Other. ELECTRICAL SYSTEM. A head unit OTA will be available via cellular network for Mid and High Grade CP1.5 head units.

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