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. ...

Navigation Control Buttons
The following control buttons are located on the navigation system: (Power/Volume): 1. Press to turn the system on and off. 2. Turn to increase or decrease the volume to the audio system. 3. Pres ...

Roadside Service (Mexico)
As a new owner, your vehicle is automatically enrolled in the Roadside Assistance program. The services are available at no cost under the terms and conditions of the program. The Roadside Assista ...