Potential Issues

Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.

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    Door Ajar Messages
    DRIVER DOOR OPEN This message will display when the driver door is open. Close the door completely. HOOD OPEN This message will display when the hood is open. Close the hood completely. LE ...

    What to Use
    WARNING! Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids can boil before the proper coolant mixture will. The coolant warni ...

    Engine Power Messages
    ENGINE POWER IS REDUCED This message displays when the vehicle's engine power is reduced. Reduced engine power can affect the vehicle's ability to accelerate. If this message is on, but t ...