Buick Enclave 2023–2024 — technical service bulletin
Bulletin 23-NA-135 · NHTSA communication 10242248 · issued Aug 16, 2023
Technical service bulletin
communication type
Power Train
component
2023–2024
model years
20
vehicle entries
Official summary
This informational bulletin advises the changes to some of the 9-speed automatic transmission oil control changes from previous years.
Vehicles covered
- 2023 Buick Enclave
- 2024 Buick Enclave
- 2023 Buick Encore GX
- 2024 Buick Encore GX
- 2023 Buick Envision
- 2024 Buick Envision
- 2023 Cadillac XT4
- 2024 Cadillac XT4
- 2023 Cadillac XT5
- 2024 Cadillac XT5
- 2023 Cadillac XT6
- 2024 Cadillac XT6
- 2023 Chevrolet Blazer
- 2024 Chevrolet Blazer
- 2023 Chevrolet Trailblazer
- 2024 Chevrolet Trailblazer
- 2023 Chevrolet Traverse
- 2023 GMC Acadia
- 2023 GMC Terrain
- 2024 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.