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:
Setting the Clock
The navigation system time and the analog clock operate independently. Changing
the time through the navigation system does not change the time on the analog clock.
See Clock to change ...
Parking on Hills
WARNING
Parking the vehicle on a hill with the trailer attached can be dangerous. If
something goes wrong, the rig could start to move.
People can be injured, and both the vehicle and the trailer ...
Database Coverage Explanations
Coverage area depends upon the map detail available. Some areas have greater
map detail than others. The navigation system works only as well as the information
provided on the stored map data. Se ...






