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:

    Oil Life Remaining
    If the vehicle has this display, it shows the estimated oil life remaining. If you see 99% Oil Life Remaining on the display, that means that 99% of the current oil life remains. When the o ...

    Auto Reroute
    When a destination is set but is off the planned route, the system automatically plans a new route and begins to reroute. The new route is highlighted on the screen. ...

    Radio Menu
    Press CONFIG to enter the configure menu screen, then press CONFIG repeatedly until Radio is selected or press the Radio screen button to make changes for radio information displayed or to limit ...