This informational bulletin advises the changes to some of the 9-speed automatic transmission oil control...
Chevrolet technical service bulletin 23-NA-135 for 2023-2024 Chevrolet Blazer, 2023-2024 Chevrolet Trailblazer and 2023 GMC Acadia and others.
- Bulletin number
- 23-NA-135
- Component
- Power train
- Summary
- This informational bulletin advises the changes to some of the 9-speed automatic transmission oil control changes from previous years.
Owners of these vehicles have filed 160 complaints in the transmission category.
Vehicles covered
- Chevrolet Blazer 2023-2024 20232024
- Chevrolet Trailblazer 2023-2024 20232024
- GMC Acadia 2023 2023
- Chevrolet Traverse 2023 2023
- GMC Terrain 2023-2024 20232024
- Buick Enclave 2023-2024 20232024
- Cadillac XT5 2023-2024 20232024
- Buick Envision 2023-2024 20232024
- Buick Encore GX 2023-2024 20232024
- Cadillac XT6 2023-2024 20232024
- Cadillac XT4 2023-2024 20232024
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