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.
See also:
Vehicle Reminder Messages
ICE POSSIBLE DRIVE WITH CARE
This message displays when ice conditions are possible. ...
Detailed Areas
Road network attributes are contained in the map database for detailed areas.
Attributes include information such as street names, street address, turn restrictions,
etc. A detailed area includes ...
Universal Remote System Programming
If the vehicle has this feature, you will see these buttons with one
indicator light next to them in the overhead console.
This system provides a way to replace up to three remote control tran ...






