Buick Envision 2021–2023 — technical service bulletin
Bulletin PIT5997 · NHTSA communication 10234251 · issued Mar 30, 2023
Technical service bulletin
communication type
Visibility
component
2021–2023
model years
3
vehicle entries
Official summary
This Preliminary information communicates an instance where the interior air quality sensor can create an buzzing or whirring noise.
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.