See also:

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Belts
- Belts may need replacing if they squeak or show signs of cracking or splitting. - Trained dealer technicians can inspect the belts and recommend replacement when necessary. ...

Automatic Transmission
If the vehicle is a hybrid, see the hybrid supplement for more information. The vehicle has a Hydra-Matic® 6L80 automatic transmission, and has an electronic shift position indicator within the ins ...