Lexus RC300 2017 - Tips for Operating the Navigation System; GPS (Global Positioning System)

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RC300RC300hNavi(EE)
3-6. Tips for operating the navigation system
3-6.Tips for operating the navigation syst em
The Global Positioning System (GPS)
developed and operated by the U.S.
Department of Defense provides an
accurate current vehicle position, nor-
mally using 4 or more satellites, and in
some case 3 satellites. The GPS sys-
tem has a certain level of inaccuracy.
While the navigation system will com-
pensate for this most of the time, occa-
sional positioning errors of up to 100 m
(100 yards) can and should be
expected. Generally, position errors
will be corrected within a few seconds.
The GPS signal may be physically
obstructed, leading to inaccurate vehi-
cle position on the map display. Tun-
nels, tall buildings, trucks, or even the
placement of objects on the instrument
panel may obstruct the GPS signals.
The GPS satellites may not send sig-
nals due to repairs or improvements
being made to them.
Even when the navigation system is
receiving clear GPS signals, the vehi-
cle position may not be shown accu-
rately or inappropriate route guidance
may occur in some cases.
 Accurate current vehicle position
may not be shown in the following
cases:
• When driving on a small angled
Y-shaped road.
• When driving on a winding road.
• When driving on a slippery road such as
in sand, gravel, snow, etc.
• When driving on a long straight road.
• When motorway and surface streets run
in parallel.
• After moving by ferry or vehicle carrier.
• When a long route is searched during
high speed driving.
• After repeating a change of direction by
going forward and backward, or turning
on a turntable in the parking lot.
• When leaving a covered parking lot or
parking garage.
• When a roof carrier is installed.
• When driving with tyre chains installed.
• When the tyres are worn.
• After replacing a tyre or tyres.
GPS (Global Positioning
System)
This navigation system calculates
the current vehicle position using
satellite signals, various vehicle sig-
nals, map data, etc. However, an
accurate position may not be shown
depending on satellite condition,
road configuration, vehicle condi-
tion or other circumstances.
Limitations of the navigation sys-
tem
NOTICE
● The installation of window tinting may
obstruct the GPS signals. Most win-
dow tinting contains some metallic
content that will interfere with GPS
signal reception of the antenna. We
advise against the use of window tint-
ing on vehicles equipped with naviga-
tion systems.