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. ...

Rainsense™
For vehicles with Rainsense, a sensor located near the top center of the windshield detects the amount of water on the windshield and automatically controls the frequency of the windshield wiper. ...

Keyless Locking
The doors lock after several seconds if all doors are closed and at least one keyless access transmitter has been removed from the interior of the vehicle. To customize if the doors automat ...