2001 Lexus GS 300 Navigation Manual - Page 47

2001 Lexus GS 300 Manual

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Orientation of the Map You can change the orientation of the map from North-up to Heading-up by touching the direction symbol at the top left of the screen. North-up symbol Regardless of the direction of vehicle travel, North is always up. Heading-up symbol The direction of the vehicle travel is always up. A red arrow indicates North. Limitations of the Navigation System This navigation system calculates the current vehicle position using satellite signals, various vehicle signals, map data, etc. However, an accurate position may not be shown depending on the satellite condition, road configuration, vehicle condition or other circumstances. The Global Positioning System (GPS) developed and operated by the U.S. Department of Defense provides an accurate current vehicle position using 3 to 4 satellites. The GPS system has a certain level of inaccuracy built in for security reasons. While the navigation system will compensate for this most of the time, occasional positioning errors up to 300 feet can and should be expected. Generally, position errors will be corrected within a few seconds. When your vehicle is receiving signals from the satellites, the "GPS" mark appears at the top left of the screen. The GPS signal may be physically obstructed, leading to inaccurate vehicle position on the map display. Tunnels, tall buildings, trucks, or even the placement of objects on the instrument panel may obstruct the GPS signals. The installation of window tinting may also obstruct the GPS signals. Most window tinting contains some metallic content that will interfere with the GPS signal reception. Lexus recommends that window tinting should not be used on vehicles equipped with navigation systems. 39

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Orientation of the Map
Limitations of the Navigation System
39
You can change the orientation of the
map from North–up to Heading–up by
touching the direction symbol at the top
left of the screen.
North–up symbol
Regardless of the direction of vehicle travel,
North is always up.
Heading–up symbol
The direction of the vehicle travel is always
up. A red arrow indicates North.
This navigation system calculates the
current vehicle position using satellite
signals, various vehicle signals, map
data, etc.
However, an accurate position
may not be shown depending on the sat-
ellite condition, road configuration, ve-
hicle condition or other circumstances.
The Global Positioning System (GPS) devel-
oped and operated by the U.S. Department
of Defense provides an accurate current ve-
hicle position using 3 to 4 satellites.
The
GPS system has a certain level of inaccura-
cy built in for security reasons.
While the
navigation system will compensate for this
most of the time, occasional positioning er-
rors up to 300 feet can and should be ex-
pected.
Generally, position errors will be cor-
rected within a few seconds.
When your vehicle is receiving signals from
the satellites, the ”GPS” mark appears at the
top left of the screen.
The GPS signal may be physically ob-
structed, leading to inaccurate vehicle posi-
tion on the map display.
Tunnels, tall build-
ings, trucks, or even the placement of
objects on the instrument panel may obstruct
the GPS signals.
The installation of window tinting may also
obstruct the GPS signals.
Most window tint-
ing contains some metallic content that will
interfere with the GPS signal reception.
Lexus recommends that window tinting
should not be used on vehicles equipped
with navigation systems.