Chevrolet Blazer 2019–2022 — technical service bulletin
Bulletin 22-NA-085 · NHTSA communication 10217116 · issued Jul 28, 2022
Technical service bulletin
communication type
Equipment
component
2019–2022
model years
35
vehicle entries
Official summary
This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of software related issues.
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
- 2022 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
- 2019 Chevrolet Sonic
- 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
- 2022 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.