User Manual Part 2

Select Map Options.
With Scrolling enabled, the vehicle position icon will always remain in the
same position with the map scrolling, or moving as while the vehicle is in
motion. With Scrolling disabled, the vehicle position icon will move
forward slightly; then, the map will scroll down. Having Scrolling disabled
allows for a faster display.
Heading Up sets the map display so that the direction of travel is always at
the top of the screen. North Up sets the map display so that North is always
at the top of the screen. North Up is only available in 2D Map mode.
Select Miles or Kilometers as the unit of measure for distance.