See also:

Tire Inspection
We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month. Replace the tire if: - The indicators at three or ...

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...

Trip Odometer
The trip odometer can show how far the vehicle has been driven since the trip odometer was last set to zero. For more information see “Trip Odometer” under Driver Information Center (DIC)  . ...