See also:

Map scale
Touch or to change the scale of the map display. The scale bar and indicator at the bottom of the screen indicates the map scale menu. The scale range is 150 feet (50 m) to 250 miles (400 km) ...

Selecting, fast-forwarding, reversing and scanning tracks
 - Selecting a track Press “” to move up or “” to move down using the “SEEK•TRACK” button until the desired track number is displayed.  - Fast-forwarding and reversing trac ...

Initialization
Items to initialize The following items must be initialized for normal system operation in cases such as after the battery is reconnected, or maintenance is performed on the vehicle. ...