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 this Manual
To quickly locate information about the vehicle, use the Index in the back of
the manual. It is an alphabetical list of what is in the manual and the page number
where it can be found. ...
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving the vehicle without a trailer.
This can help to avoid situations
that require heavy braking and
sudden turns. ...
Speedometer
Displays a digital speedometer in
the DIC. The speed displays in
either kilometers per hour (km/h) or
miles per hour (mph). To change
the units from English to metric,
see “Units” later in t ...