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:

    ELECTRONIC KEY NOT DETECTED
    If the vehicle has the keyless access system, this message displays if the vehicle does not detect the presence of a transmitter when you have attempted to start the vehicle or a vehicle d ...

    Replacement Bulbs
    For replacement bulbs not listed here, contact your dealer. ...

    Malfunction Indicator Lamp
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