OnStar Services

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Before Driving Off-Road
Have all necessary maintenance and service work completed. Fuel the vehicle, fill fluid levels, and check inflation pressure in all tires, including the spare, if equipped. Read all the info ...

Instrument Panel Illumination Control
The instrument panel brightness knob is located on the instrument panel next to the steering column. (Instrument Panel Brightness): Turn the knob clockwise or counterclockwise to brighten ...

Engine Exhaust
WARNING Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death. Exhaust may enter the vehicle if: The vehicl ...