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:

    Brake System Warning Light
    The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits ...

    Power Outlets
    The accessory power outlets can be used to plug in electrical equipment, such as a cell phone or MP3 player. The vehicle has four accessory power outlets. The power outlets located below the clim ...

    Auto Door Unlock
    This feature allows you to select whether or not the door(s) will automatically unlock. It also allows you to select which doors and when they will automatically unlock. See Automatic Door Lo ...