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:
3-D Lane Guidance
Some major metropolitan areas may include a 3-D lane guidance feature for highway
exits and junctions. This feature gives you an enhanced representation of the exits
and junctions on the route. ...
Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
. Check the engine oil level. See Engine Oil .
Once a Month
. Check the tire inflation pressures. See Tire Pressure .
. Inspect the tires f ...
Keyless Unlocking
With the keyless access transmitter
within 1m (3 ft), approach the front
door and pull the handle to unlock
and open the door. On some
models there is a touch sensor on
the door handle. If t ...