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.

    See also:

    Power Mirrors
    1. Turn the selector switch to L (Left) or R (Right) to choose the driver or passenger mirror. 2. Move the control to adjust the mirror. 3. Turn the selector switch to to deselect the mirro ...

    Service Only Mode
    This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes. With the vehicle ...

    New Vehicle Break-In
    Notice: The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: ► Do not drive at any one constant speed, fast or slow, for t ...