Cadillac 2005 XLR Owner's Manual page 202

System Configuration
This feature allows you to reconfigure the navigation
system. If you begin to drive your vehicle during
this procedure, the system will not be able to adjust the
position or direction of your vehicle.
Touch the System Configuration screen button to view
the following choices:
Adjust Vehicle Position: To correct the position of
your vehicle on the map or to change vehicle position,
do the following:
1. Touch the Adjust Vehicle Position screen button.
The system will display Position Adjustment. The
vehicle location symbol and the scroll symbol
will appear on the map.
2. Use the scroll symbol and the zoom in/zoom out
feature to locate the vehicle position on the map.
3. Touch Enter to set the vehicle position. The system
will display Position Adjustment and two arrows will
appear on the map screen.
4. Touch the arrows to adjust the direction of the
vehicle. As you touch the arrows, you will see
the vehicle symbol direction changing.
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5. When you have set the vehicle to the correct
direction, touch Enter. Relocation Complete
will be displayed.
6. Touch Return to exit this menu.
Calibrate Vehicle Speed Signal: If there are tire
pressure differences or if a spare tire is installed, the
navigation system will automatically recalibrate the
system. You may also choose to calibrate it yourself by
doing the following:
1. Touch Start to begin calibration.
2. Touch Return to exit this menu.
Time to Destination
This feature allows you to view the estimated time to
travel from your current position to the destination, and
to reset the average speed to factory default settings.
Estimated travel time is based on calculated route
information and the vehicle's average speed. Touch ON
to turn this feature on, OFF to turn this feature off, or
Reset to restore vehicle speed default settings. With this
feature on, the estimated travel time to destination will
display along with the distance to destination.