This service bulletin provides 9th gear operation information to respond to customers that may comment on...
Chevrolet technical service bulletin 21-NA-181 for 2020-2024 Chevrolet Blazer, 2021-2024 Chevrolet Trailblazer and 2020-2023 GMC Acadia and others.
- Bulletin number
- 21-NA-181
- Component
- Power train
- Summary
- This service bulletin provides 9th gear operation information to respond to customers that may comment on transmission shift operation.
Owners of these vehicles have filed 577 complaints in the transmission category.
Vehicles covered
- Chevrolet Blazer 2020-2024 20202021202220232024
- Chevrolet Trailblazer 2021-2024 2021202220232024
- GMC Acadia 2020-2023 2020202120222023
- GMC Terrain 2018-2024 2018201920202021202220232024
- Cadillac XT5 2020-2024 20202021202220232024
- Buick Envision 2021-2024 2021202220232024
- Buick Encore GX 2020-2024 20202021202220232024
- Cadillac XT6 2020-2024 20202021202220232024
- Cadillac XT4 2019-2024 201920202021202220232024
- GMC Terrain Na 2022 2022
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