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. ...

Sensors
The solar sensor, located on top of the instrument panel near the windshield, monitors the solar heat. The climate control system uses the sensor information to adjust the temperature, fan speed, ...

Auxiliary Devices
The navigation system has an auxiliary input jack located on the faceplate and in the center console. This is not an audio output; do not plug the headphone set into the front auxiliary input jack ...