Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
See also:
Compass Messages
CAL
This message is displayed when the compass needs to be calibrated.
See Compass.
Three dashes will be displayed if the compass needs service. See your dealer
for service. ...
Driving on a Route
When driving on a routed destination, the map screen automatically displays the
next maneuver.
The pop-up displays the next maneuver direction and the distance from it.
When approximately 400 ...
Brake Pedal Travel
See your dealer if the brake pedal
does not return to normal height,
or if there is a rapid increase in
pedal travel. This could be a sign
that brake service might be
required. ...