Sienna FWD V6-3.3L (3MZ-FE) (2006)
a. Vehicle position tracking methods
It is essential that the navigation system correctly tracks the current vehicle position and displays it on the map. There are 2 methods to track
the current vehicle position: autonomous (dead reckoning) and GPS* (satellite) navigation. Both navigation methods are used in conjunction
with each other. *GPS (Global Positioning System)
HINT: The combination of autonomous and GPS navigation makes it possible to display the vehicle position even when the vehicle is in
places where the GPS radio wave cannot receive a signal. When only autonomous navigation is used, however, the mapping accuracy may
slightly decline.
b. Autonomous navigation