Lexus GS450h 2008 Owner's Manual

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CAUTION
■To ensure the radar sensor functions correctly
Do not do the following to the sensor or grille cover as doing so may cause the sen-
sor not to function correctly and could result in an accident.
●Stick or attach anything to them
●Leave them dirty
●Disassemble, subject them to strong shocks
●Modify or paint them
●Replace them with non-genuine parts
■Handling the radar sensor
Observe the following to ensure the cruise control system can function effectively.
●Keep the sensor and front grille clean at all times.
Clean the sensor and front grille with a soft cloth so you do not mark or damage
them.
●Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunction. If the
sensor or surrounding area is subject to a strong impact, always have the area
inspected and adjusted by a Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille or surrounding area.
●Do not modify or paint the sensor and grille.
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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, and one in each corner of the bumper,
to detect obstacles in those areas.
The dual sensors detect obstacles ahead of the vehicle, 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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■Intuitive parking assist switch
Press the switch to turn the
system on/off.
If the intuitive parking assist is
turned on, the indicator light will
come on, and the system 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 operate if
the shift lever is in “R”.
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Multi-information display and touch screenIf the sensors detect an obstacle, it is displayed on the multi-information
display in the instrument cluster.
You can change the conditions under which information is displayed on
the touch screen. ( →P. 1 8 9 )
Multi-information display
Dual sensor detection
Steering guide symbol
Rear corner sensor detection
Back sensor detection
Touch screen Dual 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
assist will be shown in the upper
right corner of the screen.
(→ P. 1 8 5 )

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Sensor detection display, obstacle distance and beepsWhen 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
• If the shift lever is in “R”, only the 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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■Rear corner sensor
■ Back sensor
Approximate distance
to obstacleMulti-information displayTo u c h s c r e e n
1.5 ft. (50 cm) to 1.1 ft.
(37.5 cm)
(continuous)(continuous)
1.1 ft. (37.5 cm) to 0.8 ft.
(25 cm)
(continuous)(continuous)
Less than 0.8 ft. (25
cm)
(blinking)(continuous)
Approximate distance to obstacleMulti-information displayTo u c h s c r e e n
5.0 ft. (150 cm) to 2.0
ft. (60 cm)
(continuous)(continuous)
2.0 ft. (60 cm) to 1.4 ft.
(45 cm)
(continuous)(continuous)
1.4 ft. (45 cm) to 1.1 ft.
(35 cm)
(continuous)(continuous)
Less than 1.1 ft. (35 cm)
(blinking)(continuous)
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Touch screen (insert display)Dual sensor (corner) detection
Rear corner sensor detection
Back sensor detection
The tire display and the steering
guide symbol will not be displayed.
■ Dual sensor
Approximate distance
to obstacleWith beeps
(danger of collision)No beeps
(no danger of collision)
3.0 ft. (100 cm) to 1.5 ft.
(50 cm)
(blinking slowly)(continuous)
1.5 ft. (50 cm) to 1.1 ft.
(37.5 cm)
(blinking)(continuous)
1.1 ft. (37.5 cm) to 0.8 ft.
(25 cm)
(blinking rapidly)(continuous)
Less than 0.8 ft. (25
cm)
(continuous)

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■Rear corner sensor
■ Back sensor
Approximate distance to obstacleTo u c h s c r e e n
1.5 ft. (50 cm) to 1.1 ft. (37.5 cm)
(blinking)
1.1 ft. (37.5 cm) to 0.8 ft. (25 cm)
(blinking rapidly)
Less than 0.8 ft. (25 cm)
(continuous)
Approximate distance to obstacleTo u c h s c r e e n
5.0 ft. (150 cm) to 2.0 ft. (60 cm)
(blinking slowly)
2.0 ft. (60 cm) to 1.4 ft. (45 cm)
(blinking)
1.4 ft. (45 cm) to 1.1 ft. (35 cm)
(blinking rapidly)
Less than 1.1 ft. (35 cm)
(continuous)
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Steering guide symbolDisplays the steering maneuvers required to avoid an obstacle. Move the
steering wheel in the direction shown by the arrow. The steering guide symbol only
shows the maneuvers necessary to
avoid an obstacle.
When using the system, always
check your surroundings for
safety.
Beeps and obstacle distance
A beep sounds when an obstacle with which there is a danger of collision
is detected. As the vehicle moves closer to the obstacle, the interval of
the beep becomes shorter.
● When the following obstacle distances are reached, the beep changes
from intermittent to continuous:
• If the distance to the obstacle detected by the dual sensors or rear corner
sensors is less than 0.8 ft. (25 cm).
• If the distance to the obstacle detected by the back sensors is less than 1.1
ft. (35 cm).
● If obstacles are detected by the dual sensors in 2 places at once, or if
both rear corner sensors detect obstacles at the same time, the system
will sound a warning beep for the closer of the 2 obstacles.
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●If multiple obstacles are detected in front and behind the vehicle at the
same time, the warning beep will change in the following manner:
• If an obstacle has been detected within 0.8 ft. (25 cm) of the front or rear
of the vehicle (a continuous beep is sounding), and a new obstacle is
detected near a different area of the vehicle, the warning beep will sound
6 beeps then one continuous beep.
• If an obstacle has been detected within 0.8 ft. (25 cm) of the front or rear of the vehicle (a continuous beep is sounding), and a new obstacle is
detected within 0.8 ft. (25 cm) of a different area of the vehicle, the warn-
ing beeps will sound 2 beeps then one continuous beep.
●You can change the volume of the warning beeps. ( →P. 1 8 9 )
Obstacle detection range
About 10.0 ft. (300 cm)
About 3.0 ft. (100 cm)
About 5.0 ft. (150 cm)
About 1.5 ft. (50 cm)
The detection area of the sensors is
shown to the left.
If obstacles move too close to the
sensors, they will not be detected.
If the malfunction screen is dis-
played, the dual sensor detection
range will be shortened from 3.0 ft.
(100 cm) to 1.5 ft. (50 cm).
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