Subaru Ascent 2019–2022 — technical service bulletin
Bulletin 09-98-22 · NHTSA communication 10232225 · issued Feb 20, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2022
model years
4
vehicle entries
Official summary
This bulletin announces the availability of new reprograming files for the Engine Control Module (ECM).
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.