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:
Chemical Paint Spotting
Airborne pollutants can fall upon and attack painted vehicle surfaces causing
blotchy, ring-shaped discolorations, and small, irregular dark spots etched into
the paint surface. ...
Navigation
OnStar navigation requires the Directions and Connections service plan.
Push to receive directions or have
them sent to the vehicle navigation screen. Destinations can also be forwarded to
the v ...
Playing a DVD
DVD video does not display on the navigation screen unless the vehicle is in
P (Park). It will operate on the rear seat entertainment screens while the vehicle
is moving. The Rear Seat Entertainme ...