Orientation Of The Map; Limitations Of The Navigation System - Lexus SC430 Owner's Manual

BASIC FUNCTIONS

Orientation of the map

You can change the orientation of the
map from North−up to Heading−up by
touching the orientation symbol at the
top left of the screen.
Touch or .
North−up screen
Heading−up screen
North−up symbol
Regardless of the direction of vehicle trav-
el, North is always up.
Heading−up symbol
The direction of vehicle travel is always up.
A red arrow indicates North.
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Limitations of the navigation
system
This navigation system calculates the
current vehicle position using satellite
signals, various vehicle signals, map
data, etc. However, the accurate posi-
tion may not be shown depending on
the satellite condition, road configura-
tion, vehicle condition or other circum-
stances.
The Global Positioning System (GPS) de-
veloped and operated by the U.S. Depart-
ment of Defense provides an accurate cur-
rent vehicle position, normally using 4 or
more satellites, and in some cases 3 satel-
lites. The GPS system has a certain level
of inaccuracy. While the navigation sys-
tem will compensate for this most of the
time, occasional positioning errors of up to
300 feet (100 m) can and should be expec-
ted. Generally, position errors will be cor-
rected within a few seconds.