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:
Selecting an XM Station
Seek Tuning
Press or
to go to
the next or previous station.
Selecting a Station by Station List
The infotainment system can list all
XM stations.
To select a station from the
station list ...
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See Engine Overheating. ...
Store a Name Tag for Speed
Dialing
1. Push . System responds:
“OnStar ready.”.
2. Say “Store.” System responds:
“Please say the number you
would like to store.”.
3. Say the entire number without
pausing. System responds:
“Plea ...