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:
Using Cruise Control on Hills
How well the cruise control works on hills depends on the vehicle speed, the
load, and the steepness of the hills. When going up steep hills, pressing the accelerator
pedal may be necessary to mai ...
Global Positioning System (GPS)
The navigation system determines the position of the vehicle by using satellite
signals, various vehicle signals, and map data.
At times, other interferences such as the satellite condition, road c ...
Anti-Pinch Feature
If an object is in the path of the sunroof when it is closing, the
anti-pinch feature detects the object and stops the sunroof from closing at the
point of the obstruction. The sunroof then returns ...