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:

    California Fuel Requirements
    If the vehicle is certified to meet California Emissions Standards, it is designed to operate on fuels that meet California specifications. See the underhood emission control label. If this f ...

    Adjustable Throttle and Brake Pedal
    The vehicle has adjustable throttle and brake pedals that allow you to change their positions. The feature will not operate when the vehicle is in R (Reverse) or while using the cruise control. ...

    Engine Power Messages
    ENGINE POWER IS REDUCED This message displays when the vehicle's engine power is reduced. Reduced engine power can affect the vehicle's ability to accelerate. If this message is on, but there ...