parking sensors Lexus GS450h 2007 Using the audio system / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. OWNER'S MANUAL (OM30727U)

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2
When driving
Intuitive parking assist (if equipped)
Intuitive parking assist uses sensors in the front and rear of the vehicle to
detect the distance between the vehicle and any obstacles, and informs the
driver of this distance using the mult i-information display, the touch screen,
and warning beeps.

The system may be used at speeds less than about 6 mph (10 km/h).
■ Sensor types
Dual sensors
There are 4 sensors installed in the front bumper, two in the center section
to detect obstacles directly ahead, an d one in each corner of the bumper,
to detect obstacles in those areas. 
The dual sensors detect obstacles ahea d of the v
ehicle, and judge whether
avoidance maneuvers are necessary (whether the obstacle will come
within 0.8 ft. (25 cm) of the vehicle), according to the distance between
the obstacle and the vehicle, and the steering wheel position. The screen
display and beeps will change accordingly.
Rear corner sensors
These sensors detect obstacles around the rear corners of the vehicle.
Back sensors
These sensors detect obstacles behind the vehicle.

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2-4. Using other driving systems
■Intuitive parking assist switch
Press the intuitive parking assist switch to turn the system on/off.
The indicator light will come
on when the intuitive parking
as
sist is turned ON.
You can use the system if the
power switch is in the “IG-ON”
mode. 
If intuitive parking assist is ON,
the s
ystem will operate under
the following conditions;
• The dual sensors will oper -
ate if the shift lever is in a
position
other than “R” or
“P”.
• All corner sensors and the back sensors will oper
ate if
the shift lever is in “R”.

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When driving
Multi-information display and touch screen
If the sensors detect an obstacle, it is displayed on the multi-information
display in the instrument cluster. 
You can change the conditions under which informa tion is display
ed on
the touch screen. ( P. 1 5 3 )
Multi-information display
Dual sensor detection
Steering guide symbol
Rear corner sensor detection
Back sensor detection
Touch screenDual sensor detection
Steering guide symbol
Rear corner sensor detection
Back sensor detection
If the intuitive parking assist is
operated while the rear view moni-
tor is showing, the intuitive parking
as
sist will be shown in the upper
right corner of the screen. 
(  P. 1 4 4 )

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2-4. Using other driving systems
Display distance and beeps
When the intuitive parking assist is activated, the approximate distance to
the obstacle is displayed. Also, if an obstacle with which a collision is pos -
sible is detected, a warning beep will sound.
■ Dual sensor detection display and obstacle distance
• If the shift lever is in “R”, only th e corner sensors will detect obstacles.
Approximate
distance to obstacleMulti-informa- tion display
To u c h s c r e e n
With beeps(danger of collision)No beeps
(no danger of collision)
3.0 ft. (100 cm)
to 1.5 ft. (50 cm)
(continuous)(continuous)(continuous)
1.5 ft. (50 cm) to
1.1 ft. (37.5 cm)
(continuous)(continuous)(continuous)
1.1 ft. (37.5 cm) to
0.8 f t. (25 cm)
(continuous)(continuous)(continuous)
Less than 0.8 ft.
(25 cm)
(blinking)(continuous)


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2-4. Using other driving systems
If the steering information is not being correctly received
If the system is unable to receive signals from the steering sensor, or there
is a malfunction in the VGRS, the steering guide symbol and both arrows
will flash if the dual sensors detect an obstacle. 
In this case, have the vehicle checked by your Lexus dealer.
Multi-information display
Touch screen
If the steering guide symbol is on or flashing, the intuitiv
e parking assist
maximum detection range is reduced from 3.0 ft. (100 cm) to 1.5 ft. (50
cm). 
The steering sensor malfunction warnin g display will be aligned with the
intuitiv
e parking assist detection displa y or the intuitive parking assist mal -
function warning display.

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When driving
Warning beep volume and touch screen settings
You can change the warning beep volume and touch screen operating
conditions.
Push to display the “Informat ion
” screen. Then touch .
■ Changing the w
arning beep volume
To u c h .
Adjust the beep volume, then touch .
■ Changing the touch scr
een operating conditions
To u c h .
Set one of the following operating condition, then touch .
● : Displays when the sensors detect an obstacle.
● : Displays if maneuvers are required to avoid an obstacle (if
an obstacle is likely to come within 0.8 ft. [25 cm] of the vehicle).
● : Does not display the intuiti v
e parking assist detection
screen.
When an obstacle is detected while the rear view monitor is in use, the warn -
ing indicator will appear in the top right
of the screen even has been
selected.
STEP1
STEP2
STEP1
STEP2

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2-4. Using other driving systems
■When the system malfunctions
●If a malfunction occurs and no obstacles have been detected, a warning is dis-
played, and a malfunction beep sounds for 7 seconds. 
If an obstacle has been detected, or another malfunction occurs in a different
sensor
, the malfunction beeps will not sound.
●In the following circumstances the displayed warning will disappear:
• If you switch the screen to a different mode.
• If you turn OFF the intuitive parking assist main switch.
• If the vehicle speed exceeds 6 mph (10 km/h). Once the vehicle speed drops
b
elow 6 mph (10 km/h), the warning will be displayed again.
●If the malfunction screen is displayed, the detection range of the dual sensors is
shortened. In this case, the necessity fo r obstacle evasion (whether the obstacle
will come within 0.8 ft. (25 cm) of the vehicle or not) will not be calculated.
■When using intuitive parking assist
●The sensors' detection areas and reaction times are limited. When moving for -
ward or reversing, check the areas surrounding the vehicle (especially the sides
of the
vehicle) for safety, and drive slowly, using the brake to control the vehicle’s
speed.
• The sensors' detection areas are limited to the ar
eas around the vehicle’s front
and rear bumpers.
• Depending on the shape of the obstacle
and other factors, the detection dis-
tance may shorten, or dete ction may be impos
sible.
• There will be a short delay between ob stacl
e detection and display. Even at
slow speeds, there is a possibility that the obstacle will come within 0.8 ft. (25
cm) of the vehicle before the display is shown and the warning beep sounds.
• Braking distance may differ according to the road conditions (rain, gravel
et
c.).
• It might be difficult to hear beeps due to the volume of audio system or air fl
ow noise of air conditioning system.
• For long obstacles such as walls, the obstacle warning may change as the o
bstacle gets closer.

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When driving
●In the following situations, the intuitive parking assist may not function correctly,
possibly leading to an accident.
• There is ice, snow or mud on the sensors. (Wiping the sensors will resolve this problem.)
• The sensor area is frozen. (Thawing the area will resolve this problem.) 
In especially cold weather, if a sensor is frozen the screen may show an abnor-
mal display, or obstacles may not be detected.
• The vehicle angle is especially wide.
• In harsh sunlight or intense cold weather.
• When driving on bumpy, sloped or gravel roads, or over grass.
• If there is something producing ultrasonic waves nearby, such as another vehicle’s horn, motorcycle engine nois e, air braking sound from heavy-duty
vehicles, or another vehicle using the intuitive parking assist.
• In heavy rain, or if water is splashed on the sensors.
• If a commercial fender pole or radio antenna is installed.
• If towing eyelet is installed on your vehicle.
• If moving towards a high curb or a curb corner.
• Objects such as signs may cause the detection distance to shorten.
• The area directly under the bumpers is not detected. 
Objects lower than the sensor s or thin stakes etc. may be detected initially,
but as they draw closer, they may cease to be detected.
• If obstacles draw too close to the sensor.
■Obstacles that may not be detected correctly
The following obstacles may not be detected.
• Thin objects such as wire, fencing or rope.
• Objects that absorb sound waves, such as cotton or snow.
• Objects with sharp corners.
• Objects where the upper section projects out over the lower section.
•Low objects.

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■CertificationFor vehicles sold in the U.S.A.
For vehicles sold in Canada
CAUTION
■Caution while driving
To reduce the chance of injury in the even t of an accident or sudden stop, keep the
switch box closed.
■When using intuitive parking assist
Observe the following precautions.
●The back sensors and rear corner sensors do not judge whether there is danger
of a collision, nor whether the obstacle can be avoided using the steering wheel.
When reversing, always check your surroundings and behind the vehicle for
safety.
●The steering guide symbol (arrow) is an approximate guide regarding obstacles.
It is not driving instructions. When movi ng forward or reversing, always check
your surroundings for safety and drive carefully.
●Do not install accessories within the sensors' detection areas, as this may cause
the intuitive parking assist to function inco rrectly, possibly leading to an accident.
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 received, including interference
that may cause undesired operation.
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme a la norme NMB-001 du Canada.

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When driving
NOTICE
■When using intuitive parking assist
In the following situations, the system may not function correctly due to a sensor
malfunction etc. Have the vehicle checked by your Lexus dealer.
• A beep does not sound when you turn the main switch ON.
• The intuitive parking assist operation display flashes, and a beep sound when
no obstacle has been detected.
• If the area around a sensor collides with something, or is subjected to strong impact.
• If the bumper collides with something.
• If the display shows continuously without a beep.
■When changing tires
If you install tires of a size other than that recommended by the manufacturer, the
system will be unable to correctly detect steering wheel movement. Always use tire
sizes recommended by the manufacturer.
■When washing the vehicle
When washing the vehicle using high pressure cleaning equipment, do not spray
water directly on the sensors. Subjecting the sensors to high pressure impact may
cause a malfunction.