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:
Charging System Light
The charging system light comes on briefly when the ignition is turned on,
but the engine is not running, as a check to show the light is working.
The light turns off when the engine is starte ...
Meet the Wedge
The CTS sedan's exterior is angular, but the new CTS coupe takes the design
theme to a new level. There are creases everywhere, and while most meet and
intersect to create a unique-looking coupe t ...
Removing the Spare Tire and Tools
To access the spare tire and tools:
1. Open the liftgate. See Liftgate .
2. Press on the bottom of the handle assembly to unlatch it and lift up on
the handle.
The prop rod locks into pl ...