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:

    That Thing Got a Supercharger?
    Yes, the CTS-V does indeed have a supercharged V-8, but you'd be hard-pressed to know it by listening to the engine. Step on the gas and the most noticeable sound is the burbling exhaust, which qu ...

    Selective Ride Control
    The vehicle may have a ride control system called Selective Ride Control. The setting can be changed at any time. Based on road conditions, steering wheel angle, and the vehicle speed, the system au ...

    Rear Seats
    The vehicle's rear seats have head restraints in the outboard seating positions, but they are not adjustable. Rear outboard head restraints are not designed to be removed. ...