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. ...

How the System Works
The LDW camera sensor is on the windshield ahead of the rearview mirror. To turn LDW on and off, press the LANE DEPART control on the steering wheel. The control indicator will light when LDW is ...

Cleaning the Display
Notice: Using abrasive cleaners when cleaning glass surfaces could scratch the glass. Use only a soft cloth and do not spray cleaner directly on the system as it could affect the mechanical parts. ...