See also:

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. ...

Cargo Management System (Wagon Only)
Press the bottom of the load floor handle assembly to lift the top on the handle. Pull up on the handle to open the cargo management system. The cover can be opened to two positions to ...

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 ...