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:
Precise dimensional accuracy
Engineers developed and adhered to hundreds of criteria points when
developing the DTS, and the result is outstanding fit, finish and overall
harmony of the elements.
Fit, flushness and gaps are ...
General Information
For service and parts needs, visit your dealer. You will receive genuine GM
parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:
...
Parking Assist
If the vehicle has the Ultrasonic
Rear Parking Assist (URPA) system,
this display allows the system to
be turned on or off. Once in this
display, press the set/reset button
to select between ...