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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    Lamps On Reminder
    For vehicles with the lamps on reminder light, it comes on when the lights are in use. ...

    When Using the Manual Transfer Case
    • Shifts into or out of Four-Wheel Drive Low or N (Neutral) should be made using quick motions to avoid excessive gear grinding. Shifting slowly may make it more difficult to shift. • You may no ...

    Ride Control System Messages
    ALL WHEEL DRIVE OFF If your vehicle has the All-Wheel Drive (AWD) system, this message displays when the rear drive system is overheating. This message turns off when the rear drive system cools ...