OnStar Services

See also:

What to Use
WARNING Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warning sy ...

Radio Messages
Calibration Error: The audio system has been calibrated for the vehicle from the factory. If Calibration Error displays, it means that the radio has not been configured properly for the vehicle and i ...

Four-Way Power Driver Seat
A. Seat Position Handle B. Height Adjustment Control To adjust the seat: ○ Move the seat forward or rearward using the handle under the front of the seat cushion (A). See Seat Adjustment ...