OnStar

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Tires
Tires need to be properly inflated, rotated, and balanced. Maintaining the tires can save money, fuel, and can reduce the risk of tire failure. • Signs that the tires need to be replaced in ...

Roof
Sunroof On vehicles with a sunroof, the switches are on the overhead console. The sunroof only operates when the ignition is in ON/RUN or ACC/ ACCESSORY or in Retained Accessory Power (RAP). See R ...

Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles (8 000 to 13 000 km). Any time you notice unusual wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged ...