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:
Call Waiting
Call waiting must be supported on
the cell phone and enabled by the
wireless service carrier.
- Press to answer an
incoming call when another call
is active. The original call is
placed on ...
Brake System Warning Light
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both cir ...
Traffic Options (US and Canada)
Read the following Options descriptions to understand how the XM NavTraffic™
operates. ...