See also:

Checking Coolant
The vehicle must be on a level surface when checking the coolant level. The engine coolant reservoir is located in the engine compartment on the driver side of the vehicle. See Engine Compar ...

Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has ch ...

Traction Control System (TCS)
The traction control system limits wheel spin. The system is on when the vehicle is started. - To turn off traction control, press and release located on the console.   illuminates and the a ...