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. ...

Using the Universal Remote System
Press and hold the appropriate Universal Remote system button for at least half of a second. The indicator light will come on while the signal is being transmitted. ...

Rear Climate Control System
The lower buttons on the rear seat audio are used to adjust the rear seat climate controls. The temperature of the air coming through the rear outlets is determined by the front passenger’s temp ...