July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

"Tracking" Mode

To delete the tracking marks on the map, select "Off".
To leave the tracking marks on the map, select "On".
NOTE: When a trail display is turned OFF, trail data is erased from the memory.

Fig 1: Scan Tool Display - Tracking Mode
Courtesy of NISSAN MOTOR CO., U.S.A.