Multi-Band Antenna
The antenna located on the roof of the vehicle is used for the OnStar, XM Satellite Radio Service System, and GPS (Global Positioning System), if the vehicle has these features. Keep the antenna clear of obstructions for clear reception.
If the vehicle has a sunroof and it is open, the performance of OnStar, XM, and GPS can be affected.
See also:
Turning the System On or Off
VOL/ (Volume/Power):
Press to turn the system on and off ...
Flash-to-Pass
The flash—to—pass feature works with the low beams or Daytime Running Lamps
(DRL) on or off.
To flash the high beams, pull the turn signal/lane change lever all the way
toward you, then release i ...
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by a
combination of fuses and circuit breakers. This greatly reduces the chance of
damage caused by electrical problems.
To ch ...