Lincoln Electric 2004 Town Car Owner's Manual page 50

Entertainment Systems
Ensure that you follow highway code restrictions and do not
take any risks. For example, if you are unable to make a U-turn,
continue on your journey. The navigation system will recalculate your
route to get you back to an appropriate road to your destination.
Navigation set up
The Navigation Set up screen will
allow you to make adjustments to
the navigation displays.
Average speed settings
Allows you to set approximate
speeds you drive. These speeds
enable the navigation system to aid
in calculating timing for routes.
50
2004 Town Car (tow)
Owners Guide (post-2002-fmt)
USA English (fus)