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As the parking assist−sensor might be
malfunctioning in the following cases,
have it checked by your Lexus dealer.
DThe indicator in the instrument cluster
does not come on and a beep does not
sound even when the parking assist −
sensor main switch is turned on.
DThe warning comes on despite no ob-
stacle around the vehicle.
On vehicles equipped with rear view
monitor system, a warning appears on
the right top of the parking assist moni-
tor in the following conditions.
DWhen the shift lever is put in “R” (auto-
matic transmission) or reverse (manu-
al transmission) and the rear view
monitor is turned on.
DWhen the parking assist −sensor main
switch is turned on and any sensor de-
tects an obstacle.
Although “Display OFF” is selected in the
Lexus parking assist −sensor setting
screen, the warning appears on the right
top of the rear view monitor display.
IS F/350/250_Navi_U
(L/O 0712)
— Rear view monitor
display (Vehicles with
rear view monitor system)
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"1About 1.1 ft. (37.5 cm) to about
1.5 ft. (50 cm)
2About 0.8 ft. (25 cm) to about
1.1 ft. (37.5 cm)
3Less than about 0.8 ft. (25 cm)
Display:
When an obstacle is detected, the indica-
tor will flash yellow. The flashing speed be-
comes faster as the vehicle gets closer to
the obstacle. When the distance between
the vehicle and the obstacle is less than
about 0.8 ft. (25 cm), the indicator will illu-
minate in red.
Beeps:
As distance to the obstacle gets closer, the
interval of the intermittent sound gets
shorter, and then finally changes to a con-
tinuous sound when the distance between
the vehicle and the obstacle is less than
about 0.8 ft. (25 cm).
"1About 1.1 ft. (37.5 cm) to about 1.5
ft. (50 cm)
2About 0.8 ft. (25 cm) to about 1.1
ft. (37.5 cm)
3Less than about 0.8 ft. (25 cm)
Display:
When an obstacle is detected, the indica-
tor will flash yellow. The flashing speed be-
comes faster as the vehicle gets closer to
the obstacle. When the distance between
the vehicle and the obstacle is less than
about 0.8 ft. (25 cm), the indicator will illu-
minate in red.
Beeps:
As distance to the obstacle gets closer, the
interval of the intermittent sound gets
shorter, and then finally changes to a con-
tinuous sound when the distance between
the vehicle and the obstacle is less than
about 0.8 ft. (25 cm).
IS F/350/250_Navi_U
(L/O 0712)
— Front corner sensors — Rear corner sensors
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"1About 1.8 ft. (60 cm) to about 4.5
ft. (150 cm)
2About 1.4 ft. (45 cm) to about 1.8
ft. (60 cm)
3About 1.1 ft. (35 cm) to about 1.4
ft. (45 cm)
4Less than about 1.1 ft. (35 cm)
Display:
When an obstacle is detected, the indica-
tor will flash yellow. The flashing speed be-
comes faster as the vehicle gets closer to
the obstacle. When the distance between
the vehicle and the obstacle is less than
about 1.1 ft. (35 cm), the indicator will illu-
minate in red.
Beeps:
As distance to the obstacle gets closer, the
interval of the intermittent sound gets
shorter, and then finally changes to a con-
tinuous sound when the distance between
the vehicle and the obstacle is less than
about 1.1 ft. (35 cm).
CAUTION
When reversing, be sure to visually
confirm a safe distance around your
vehicle to avoid an accident.
The volume of the beeps and turning on
or off of the display can be set.
1. Push the “INFO” button to display
the menu screen.
IS F/350/250_Navi_U
(L/O 0712)
— Back sensors — Setting the Lexus parkin
g
assist−
sensor
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291
(b) Changing display and alert set-
tings
Touch“Distance” to change the distance
for the back sensors display and tone indi-
cation.
Touch “Rear” to switch the distance for the
back sensors display and tone indication,
from long distance to short distance, or
from short distance to long distance.
To return to the previous screen, touch
. (c) Display off setting
Vehicles with rear view monitor system —
Although “Display OFF” is turned on, if the
obstacle is detected during the rear view
monitoring, the warning appears on the
right top of the screen.
For vehicles sold in U.S.A.
This device complies with Part 15 of the
FCC Rules.
Operation is subject to the following two
conditions: (1) This device may not
cause harmful interference, and (2) this
device must accept any interference re-
ceived, including interference that may
cause undesired operation.
For vehicles sold in Canada.
This ISM device complies with Cana-
dian ICES
−001.
Cet appareil ISM est conforme a la
norme NMB −001 du Canada.
IS F/350/250_Navi_U
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APPENDIX
294
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.
When your vehicle is receiving signals
from the satellites, the “GPS” mark ap-
pears at the top left of the screen.
The GPS signal may be physically ob-
structed, leading to inaccurate vehicle
position on the map display. Tunnels, tall
buildings, trucks, or even the placement of
objects on the instrument panel may ob-
struct 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.
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.
IS F/350/250_Navi_U
(L/O 0712)
Limitations of the
navigation system
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APPENDIX
296
After replacing a tire, implement the op-
eration described in the “TIRE
CHANGE CALIBRATION”. (See page
116.)
This navigation system uses tire turning
data and is designed to work with factory−
specified tires for your vehicle. Installing
tires that are larger or smaller than the orig-
inally equipped diameter may cause inac-
curate display of the vehicle’s position.
The tire pressure also affects the diameter
of the tires so please make sure the tire
pressure of all four tires is correct.
Map database information
and updates
This system uses the maps of DENSO.
2007 DENSO CORPORATION
2006 NAVTEQ. All rights reserved.
2006 Tele Atlas North America, Inc.
All rights reserved. This material is pro-
prietary and the subject of copyright
protection and other intellectual prop-
erty rights owned by or licensed to Tele
Atlas North America, Inc. The use of
this material is subject to the terms of
a license agreement. You will be held
liable for any unauthorized copying or
disclosure of this material.
Data by infoUSA Copyright 2006, All
Rights Reserved.
2006 VISA Corporation
National Research Bureau 2006
The Bullseye Design is a registered
trademark of Target Brands, Inc.
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APPENDIX
304
Disclaimer of Liability: DENSO SHALL
NOT BE LIABLE TO YOU FOR ANY
CLAIM, DEMAND OR ACTION, IR-
RESPECTIVE OF ITS NATURE, AL-
LEGING ANY LOSS, INJURY OR
DAMAGES, WHETHER DIRECT, IN-
DIRECT, INCIDENTAL, SPECIAL OR
CONSEQUENTIAL DAMAGES, IN-
CLUDING ANY LOSS OF PROFIT,
REVENUE OR CONTRACTS ARIS-
ING OUT OF YOUR POSSESSION,
USE OF OR INABILITY TO USE THIS
INFORMATION, ANY DEFECT IN
THE INFORMATION, OR THE
BREACH OF THESE TERMS OR
CONDITIONS, WHETHER IN AN AC-
TION IN CONTRACT OR TORT OR
BASED ON A WARRANTY, EVEN IF
DENSO OR ITS LICENSORS HAVE
BEEN ADVISED OF THE POSSIBIL-
ITY OF SUCH DAMAGES. Some
states, territories and countries do not
allow certain liability exclusions or
damages limitations, so to that extent
the above may not apply to you.Indemnity. You agree to indemnify, de-
fend and hold DENSO and its licensors
(including their respective licensors,
suppliers, assignees, subsidiaries, af-
filiated companies, and the respective
officers, directors, employees, share-
holders, agents and representatives of
each of them) free and harmless from
and against any liability, loss, injury (in-
cluding injuries resulting in death), de-
mand, action, cost, expense, or claim
of any kind or character, including but
not limited to attorney’s fees, arising
out of or in connection with any use or
possession by you of this information.
END USER NOTICE
The marks of companies displayed by
this product to indicate business loca-
tions are the marks of their respective
owners. The use of such marks in this
product does not imply any sponsor-
ship, approval, or endorsement by
such companies of this product.
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APPENDIX
305
There are two types of areas available
for route guidance. In one type of area,
primarily around metropolitan centers,
detailed route guidance is available for
the entire area. In the other type of area,
all roads are displayed on the map but
route guidance is limited. The naviga-
tion route might lack precision because
the data (no right turns, one−way traf-
fic, etc.) is not complete. It is still pos-
sible to reach the destination by follow-
ing the arrow direction and distance as
shown on the bottom left of the screen.
The arrow points in the direction of the
destination. The distance shown is as
measured in a straight line from the cur-
rent vehicle position to the destination
area.
In order to provide you with as accurate
map information as possible, we are al-
ways gathering information such as on
road repairs and carrying out on −site in-
vestigations. However, the names of
roads, streets, facilities, and their locations
frequently change. In some places,
construction on roads may be in progress.
For that reason, information on some
areas in this system might be different from
the actual location.
The map database is normally updated
once a year. Contact your Lexus dealer for
information about the availability and pric-
ing of an update. When changing the map DVD
−ROM, we
recommend using your Lexus dealer.
To change the map DVD −ROM yourself,
follow these instructions carefully.
Do not use any tolls other than in −vehicle
tools.
For the storage location of the in −vehicle
tools, refer to the “Owner’s Manual” .
1. Set the “ENGINE START STOP”
switch in ACCESSORY mode.
2. Insert the 2 picks provided in the in−
vehicle tools into the holes on both
sides of the clock panel at a slight out-
ward angle until you hear a “click”.
IS F/350/250_Navi_U
(L/O 0712)
— Changing the map
DVD− ROM