Buick Envision 2020–2022 — technical service bulletin
Bulletin N212353390 · NHTSA communication 10211929 · issued May 17, 2022
Technical service bulletin
communication type
Equipment
component
2020–2022
model years
14
vehicle entries
Official summary
Service Update Bulletin. Certain vehicles that had the Serial Data Gateway Module (SDGM) replaced in service, may not have been programmed correctly resulting in an incomplete registration of the new module. Dealers are to reprogram the SDGM.
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.