2012 Lexus GS450h navigation system

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4. SETUP
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NAVIGATION SYSTEM
4Select the desired screen button.
POSITION/DIRECTION CALI-
BRATION
1Select “Position / Direction”.
2Select one of the 8 directional screen
buttons to move the cursor to the
desired point on the map.
3Select “OK”.
4Select either the or to adjust
the direction of the current position
mark.
5Select “OK”.
The map will be displayed.
For additional information on the
accuracy of a current position, see
“LIMITATIONS OF THE NAVIGA-
TION SYSTEM” on page 157.
When driving, the current position
mark will be automatically corrected
by GPS signals. If GPS reception is
poor due to location, the current po-
sition mark can be adjusted manual-
ly.

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NAVIGATION SYSTEM
2. VEHICLE SETTINGS
1Press the “MENU” button on the Re-
mote Touch.
2Select “Setup”.
3Select “Vehicle”.
4Select “Maintenance”.
5Select the desired screen button.
Setting maintenance information (See
page 152.)
Setting dealer (See page 153.)
MAINTENANCE
When the navigation system is
turned on, the “Information” screen
displays when it is time to replace a
part or certain components. (See
page 36.)

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NAVIGATION SYSTEM
5Input the conditions.
6Select “OK”.
The screen then returns to the “Mainte-
nance” screen.
1Press the “MENU” button on the Re-
mote Touch, then select “Setup”.
2Select “Vehicle” on the “Setup”
screen.
3Select “Maintenance” on the “Vehi-
cle settings” screen.
4Select “Set dealer”.
5If the dealer has not been registered,
enter the location of the dealer in the
same way as for a destination search.
(See “DESTINATION SEARCH”
on page 78.)
When “Set dealer” registration is fin-
ished, the “Set dealer” screen will be
displayed.
No.Function
Select to input the next mainte-
nance date.
Select to input the driving dis-
tance until the next maintenance
check.
Select to cancel the date and dis-
tance conditions.
Select to reset the date and dis-
tance conditions.
INFORMATION
For scheduled maintenance informa-
tion, please refer to “Lexus Service
Booklet”, “Lexus Warranty Booklet”
or “Owner’s Manual”.
Depending on driving or road condi-
tions, the actual date and distance
maintenance should be performed
may differ from the stored date and
distance in the system.
DEALER SETTING
Dealer information can be registered
in the system. With dealer informa-
tion registered, route guidance to the
dealer is available.

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NAVIGATION SYSTEM
2Select one of the 8 directional screen
buttons to move the cursor to the
desired point on the map.
3Select “OK”.
The previous screen will be displayed.
TO EDIT “Tel. no.” (TELEPHONE
NUMBER)
1Select “Tel. no.”.
2Enter the number using number
keys.
3Select “OK”.
The previous screen will be displayed.
1Press the “MENU” button on the Re-
mote Touch. (See “Remote Touch”
on page 10.)
2Select “Setup” on the “Menu”
screen.
3Select “Vehicle” on the “Setup”
screen.
4Select “Vehicle customization”.
5Select the desired items to be set.
For a list of the settings that can be
changed, please refer to “Owner’s
Manual”.
6After changing the settings, select
“OK”. A message indicating that the
settings are being saved will appear.
Do not perform any other operations
while this message is displayed.
VEHICLE CUSTOMIZATION
Vehicle settings can be changed.

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5. GPS (GLOBAL POSITIONING SYSTEM)
1. LIMITATIONS OF THE NAVIGATION SYSTEM
The Global Positioning System (GPS)
developed and operated by the U.S. De-
partment of Defense provides an accu-
rate current position, normally using 4
or more satellites, and in some case 3
satellites. The GPS system has a certain
level of inaccuracy. While the naviga-
tion system will compensate for this
most of the time, occasional positioning
errors of up to 100 m (300 feet) can and
should be expected. Generally, position
errors will be corrected within a few
seconds.When the vehicle is receiving signals
from satellites, the “GPS” mark appears
at the top left of the screen.
The GPS signal may be physically ob-
structed, leading to inaccurate vehicle
position on the map screen. Tunnels, tall
buildings, trucks, or even the placement
of objects on the instrument panel may
obstruct the GPS signals.
The GPS satellites may not send signals
due to repairs or improvements being
made to them.
Even when the navigation system is re-
ceiving clear GPS signals, the vehicle
position may not be shown accurately or
inappropriate route guidance may occur
in some cases.
This navigation system calculates
the current position using satellite
signals, various vehicle signals, map
data, etc. However, an accurate posi-
tion may not be shown depending on
satellite conditions, road configura-
tion, vehicle condition or other cir-
cumstances.
NOTICE
The installation of window tinting
may obstruct the GPS signals. Most
window tinting contains some metal-
lic content that will interfere with
GPS signal reception of the antenna
in the instrument panel. We advise
against the use of window tinting on
vehicles equipped with navigation
systems.

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Accurate current 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 car-
rier.
• When a long route is searched during
high speed driving.
• When driving without setting the cur-
rent position calibration correctly.
• After repeating a change of direction
by going forward and backward, or
turning on a turntable in a 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.
• When using tyres that are smaller or
larger than the factory specifications.
• When the tyre pressure in any of the 4
tyres is not correct.Inappropriate route guidance may
occur in the following cases:
• When turning at an intersection off
the designated route guidance.
• If you set more than one destination
but skip any of them, auto reroute will
display a route returning to the desti-
nation on the previous route.
• When turning at an intersection for
which there is no route guidance.
• When passing through an intersection
for which there is no route guidance.
• During auto reroute, the route guid-
ance may not be available for the next
turn to the right or left.
• During high speed driving, it may
take a long time for auto reroute to
operate. In auto reroute, a detour route
may be shown.
• After auto reroute, the route may not
be changed.
• If an unnecessary U-turn is shown or
announced.
• If a location has multiple names and
the system announces one or more of
them.
• When a route cannot be searched.
• If the route to your destination
includes gravel, unpaved roads or
alleys, the route guidance may not be
shown.
• Your destination point might be
shown on the opposite side of the
street.
• When a portion of the route has regu-
lations prohibiting the entry of the
vehicle that vary by time or season or
other reasons.
• The road and map data stored in the
navigation system may not be com-
plete or may not be the latest version.
If the vehicle cannot receive GPS sig-
nals, the current position can be
adjusted manually. For information
on setting the current position cali-
bration, see page 148.

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5. GPS (GLOBAL POSITIONING SYSTEM)
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NAVIGATION SYSTEM
After replacing a tyre, implement the
operation described in the “TYRE
CHANGE CALIBRATION”. (See
page 150.)
INFORMATION
This navigation system uses tyre turn-
ing data and is designed to work with
factory-specified tyres for the vehicle.
Installing tyres that are larger or
smaller than the originally equipped
diameter may cause inaccurate dis-
play of the current position. The tyre
pressure also affects the diameter of
the tyres, so make sure that the tyre
pressure of all tyres is correct.

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5. GPS (GLOBAL POSITIONING SYSTEM)
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NAVIGATION SYSTEM
1Press the “MENU” button on the Re-
mote Touch.
2Select “Navi”, and select “Menu” if
the map screen is displayed.
3Select “Map data” on the navigation
menu screen.
4Select “Legal info”.
The “Legal information” screen will be
displayed.
1Press the “MENU” button on the Re-
mote Touch.
2Select “Navi”, and select “Menu” if
the map screen is displayed.
3Select “Map data” on the navigation
menu screen.
4Select “Covered area”.
The “Map data coverage” screen will
be displayed.
LEGAL INFORMATION
Legal information related to the map
data can be displayed.COVERED AREA
Map data coverage areas can be dis-
played.