Buick Envision 2021 — technical service bulletin
Bulletin PIT6507 · NHTSA communication 11031717 · issued Apr 20, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2021
model years
11
vehicle entries
Official summary
This PI communicates information on a SPS programming issue causing Serial Data Authentication Configuration to fail.
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.