Service bulletins for the 2021 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.
384 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Seats are shown. Show all
| 12-252-23R | 2025-11-04. Service bulletin. ELECTRICAL SYSTEM; SEATS. This bulletin announces the availability of new seat ventilation blower units which have been redesigned to address some cases of a vibration-type sound emitting from the blower unit during seat ventilation operation. |
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| 12-252-23R | 2025-10-02. Service bulletin. ELECTRICAL SYSTEM; SEATS. This bulletin announces the availability of new seat ventilation blower units. This update is set to address some cases of a vibration-type sound emitting from the blower unit during seat ventilation operation. |
| 12-252-23R | 2025-08-04. Service bulletin. SEATS; ELECTRICAL SYSTEM. This bulletin announces the availability of new seat ventilation blower units. |
| 12-252-23R | 2023-11-06. Service bulletin. SEATS; ELECTRICAL SYSTEM. This bulletin announces the availability of new seat ventilation blower units. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.