Subaru Ascent 2018–2020 — technical service bulletin
Bulletin 07-182-20R · NHTSA communication 10186382 · issued Jan 15, 2021
Technical service bulletin
communication type
Electrical System
component
2018–2020
model years
7
vehicle entries
Official summary
This bulletin provides details regarding the cause of a whining-type sound customers may have concern about when operating their power door locks (lock and/or unlock).
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.