Buick Encore GX 2021–2022 — technical service bulletin
Bulletin 21-NA-188 · NHTSA communication 10215627 · issued Jun 24, 2022
Technical service bulletin
communication type
Equipment
component
2021–2022
model years
39
vehicle entries
Official summary
This service bulletin provides service information/procedures on continuous improvement Radio Software Version V158 Update to address customer comments on software related issues.
Vehicles covered
- 2021 Buick Encore GX
- 2022 Buick Encore GX
- 2021 Buick Envision
- 2022 Buick Envision
- 2021 Cadillac CT4
- 2022 Cadillac CT4
- 2021 Cadillac CT5
- 2022 Cadillac CT5
- 2021 Cadillac XT4
- 2022 Cadillac XT4
- 2021 Cadillac XT5
- 2022 Cadillac XT5
- 2021 Cadillac XT6
- 2022 Cadillac XT6
- 2021 Chevrolet Blazer
- 2022 Chevrolet Blazer
- 2022 Chevrolet Bolt EV
- 2022 Chevrolet Camaro
- 2022 Chevrolet Corvette
- 2022 Chevrolet Equinox
- 2021 Chevrolet Malibu
- 2022 Chevrolet Malibu
- 2021 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 2500
- 2021 Chevrolet Silverado 3500
- 2021 Chevrolet Suburban
- 2021 Chevrolet Suburban 1500
- 2021 Chevrolet Tahoe
- 2021 Chevrolet Trailblazer
- 2022 Chevrolet Trailblazer
- 2021 GMC Acadia
- 2022 GMC Acadia
- 2021 GMC Sierra 1500
- 2021 GMC Sierra 2500
- 2021 GMC Sierra 3500
- 2022 GMC Terrain
- 2022 GMC Terrain NA
- 2021 GMC Yukon
- 2021 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.