Chevrolet Silverado 1500 2021–2023 — technical service bulletin
Bulletin 23-NA-049 · NHTSA communication 10234157 · issued Mar 23, 2023
Technical service bulletin
communication type
Electrical System
component
2021–2023
model years
16
vehicle entries
Official summary
This technical bulletin provides repair information to correct a customer concern of Volume Selection Does Not Clear from DIC After Adjusting Volume.
Vehicles covered
- 2021 Chevrolet Silverado 1500
- 2022 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 2500
- 2022 Chevrolet Silverado 2500
- 2023 Chevrolet Silverado 2500
- 2021 Chevrolet Silverado 3500
- 2022 Chevrolet Silverado 3500
- 2023 Chevrolet Silverado 3500
- 2021 GMC Sierra 1500
- 2022 GMC Sierra 1500
- 2021 GMC Sierra 2500
- 2022 GMC Sierra 2500
- 2023 GMC Sierra 2500
- 2021 GMC Sierra 3500
- 2022 GMC Sierra 3500
- 2023 GMC Sierra 3500
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.