Buick Envision 2020–2022 — technical service bulletin
Bulletin 22-NA-056 · NHTSA communication 10209397 · issued Mar 11, 2022
Technical service bulletin
communication type
Electrical System
component
2020–2022
model years
11
vehicle entries
Official summary
This service bulletin provides a repair procedure to correct a customer concern of a MIL Illuminated with DTC P0172, P06DE and/or P0521 Set.
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.