OnStar Services

See also:

Adding Coolant
If you need more coolant, add the proper DEX-COOL® coolant mixture at the coolant recovery tank. CAUTION: Turning the radiator pressure cap when the engine and radiator are hot can allow stea ...

Infotainment System Overview
The infotainment system is controlled by using the buttons on the faceplate and the touch screen. See “Infotainment Control Buttons” in this section for more information. A. VOL/ (Volum ...

Manual Operation
(Fan Control): Press the lower button to decrease the fan speed. Pressing the lower button longer turns the fan and cooling off. Press the upper button to increase the fan speed. The selected ...