See also:

To Use the Engine Heater
1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. The electrical cord is located on the passenger side of the engine compartment, near the air cleaner. 3. Plug it into a n ...

Transmission
Automatic Transmission Driver Shift Control (DSC) Driver Shift Control (DSC) allows shifting an automatic transmission similar to a manual transmission. DSC can be enabled through the shift l ...

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 ...