Subaru Ascent 2019–2022 — technical service bulletin
Bulletin 09-88-22 · NHTSA communication 10215432 · issued Jun 29, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2022
model years
11
vehicle entries
Official summary
This bulletin announces availability of new reprograming files for the Engine Control Module (ECM).
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.