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. ...

Blizzard Conditions
Being stuck in snow can be a serious situation. Stay with the vehicle unless there is help nearby. If possible, use the Roadside Assistance Program (U.S. and Canada) or Roadside Assistance ...

Erasing Universal Remote System Buttons
All programmed buttons should be erased when the vehicle is sold or the lease ends. To erase all programmed buttons on the Universal Remote system device: 1. Press and hold down the two ou ...