Cellular and GPS Antennas

Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception.

Cellular reception is required for OnStar to send remote signals to the vehicle.

    See also:

    Engine Oil Life System
    The engine oil life system calculates engine oil life based on vehicle use and displays a DIC message when it is necessary to change the engine oil and filter. The oil life system should be reset ...

    Magnetic Ride Control
    The XLR also is one of the world's first vehicles to be equipped with Magnetic Ride Control - electronically controlled, magnetic-fluid based real-time damping. The system uses four wheel-to-body ...

    TIRE LEARNING ACTIVE
    This message displays when the Tire Pressure Monitor System (TPMS) is re-learning the tire positions on the vehicle. The tire positions must be re-learned after rotating the tires or after ...