Subaru Ascent 2019–2022 — technical service bulletin
Bulletin 02-190-22R · NHTSA communication 10238469 · issued Jun 29, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2022
model years
10
vehicle entries
Official summary
This Service Information Bulletin announces the proper diagnostic procedures regarding oil leakage from the oil level switch area.
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.