WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
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: "Tracking" Mode - Identifying "On" And "Off"