Buick Envision 2021–2022 — technical service bulletin
Bulletin 22-NA-052 · NHTSA communication 10227380 · issued Nov 21, 2022
Technical service bulletin
communication type
Electrical System
component
2021–2022
model years
21
vehicle entries
Official summary
This service bulletin provides repair information to correct a customer concern of DTC B1038 SYM64 set in the BCM and Door Ajar Message on Driver Information Center (DIC).
Vehicles covered
- 2021 Buick Envision
- 2022 Buick Envision
- 2021 Cadillac CT5
- 2022 Cadillac CT5
- 2021 Cadillac Escalade
- 2022 Cadillac Escalade
- 2021 Cadillac Escalade Esv
- 2022 Cadillac Escalade Esv
- 2021 Cadillac Escalade NA
- 2021 Chevrolet Corvette
- 2022 Chevrolet Corvette
- 2021 Chevrolet Suburban
- 2022 Chevrolet Suburban
- 2021 Chevrolet Suburban 1500
- 2022 Chevrolet Suburban 1500
- 2021 Chevrolet Tahoe
- 2022 Chevrolet Tahoe
- 2021 GMC Yukon
- 2022 GMC Yukon
- 2021 GMC Yukon XL
- 2022 GMC Yukon XL
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.