Chevrolet Blazer 2020–2022 — technical service bulletin
Bulletin 21-NA-182 · NHTSA communication 10211071 · issued Apr 27, 2022
Technical service bulletin
communication type
Equipment
component
2020–2022
model years
32
vehicle entries
Official summary
This service bulletin provides repair information to correct a customer concern of Radio System Settings Lost or Returning to Default Values.
Vehicles covered
- 2020 Chevrolet Blazer
- 2020 Chevrolet Camaro
- 2020 Chevrolet Colorado
- 2021 Chevrolet Colorado
- 2022 Chevrolet Colorado
- 2020 Chevrolet Equinox
- 2021 Chevrolet Equinox
- 2020 Chevrolet Malibu
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 2500
- 2021 Chevrolet Silverado 2500
- 2022 Chevrolet Silverado 2500
- 2020 Chevrolet Silverado 3500
- 2021 Chevrolet Silverado 3500
- 2022 Chevrolet Silverado 3500
- 2020 Chevrolet Sonic
- 2020 Chevrolet Trax
- 2021 Chevrolet Trax
- 2020 GMC Canyon
- 2021 GMC Canyon
- 2022 GMC Canyon
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2020 GMC Sierra 2500
- 2021 GMC Sierra 2500
- 2022 GMC Sierra 2500
- 2020 GMC Sierra 3500
- 2021 GMC Sierra 3500
- 2022 GMC Sierra 3500
- 2020 GMC Terrain
- 2021 GMC Terrain
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.