OnStar Services

See also:

Tire Pressure
If the vehicle has the Tire Pressure Monitor System (TPMS), the pressure for each tire can be viewed in the DIC. The tire pressure will be shown in either kilopascals (kPa) or pounds per square inch ( ...

Engine Power Messages
ENGINE POWER IS REDUCED This message displays and a chime sounds when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Overhea ...

Dual Automatic Climate Control System
The heating, cooling, and ventilation in the vehicle can be controlled with this system. A. Fan Control B. AUTO (Automatic Operation) C. Defrost D. Recirculation E. REAR (Rear Climate Control) ...