sensor Lexus GS450h 2007 Using the audio system / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. (OM30727U) Owner's Guide

145
2-4. Using other driving systems
2
When driving
■Rear corner sensor detection display and obstacle distance
■Back sensor detection display and obstacle distance
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)
1.1 ft. (37.5 cm) to 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)

147
2-4. Using other driving systems
2
When driving
Beeps and obstacle distance
A beep sounds when an obstacle with which there is a danger of collision
is detected. As the vehicle moves clos er to the obstacle, the interval of
the beep becomes shorter.
● When the follo
wing obstacle distan ces 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 b
y 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 obst acles at the same time, the system
will sound a warning beep for the closer of the 2 obstacles.
● If multiple obstacles ar
e detected in front and behind th e 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 th e 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 5 3)

148
2-4. Using other driving systems
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
r
ange will be shortened from 3.0 ft.
(100 cm) to 1.5 ft. (50 cm).

149
2-4. Using other driving systems
2
When driving
If there is snow or mud on a sensor
Multi-information display
Touch screen
The same symbol will appear on the insert display.
The location of the affected sensor is displayed. Wipe off whatever is
stuck to the sensor. (The above illustration shows something on the left
front sensor.) 
If the “CLEAN SONAR” message is di splay
ed even though the sensor is
not dirty or you have already cleaned it, there is most likely a sensor mal-
function. Have the vehicle checked by your Lexus dealer.

150
2-4. Using other driving systems
If a sensor is malfunctioning
Multi-information display
Touch screen
The same symbol will appear on the insert display.
The location of the malfunctioning sensor is displayed. (The above illus -
tration shows a malfunctioning left fr
ont sensor.) Have the vehicle
checked by your Lexus dealer.

151
2-4. Using other driving systems
2
When driving
If the steering neutral position is unknown
After the 12 volt battery has been reconnected, the steering sensor will
need to be initialized. At this time, if the dual sensors detect an obstacle,
the steering guide symbol and both arrows will be displayed.
Multi-information display
Touch screen
Use one of the following methods to initialize the steering sensor.
• With the vehicle stopped, turn the s teering wheel all the w
ay to the left,
then the right. (The order is not important.)
• Drive for more than 5 minutes on an un-cr
owded road with as few
curves and corners as possible.
If the steering guide symbol disappe ars, the steering sensor has been ini-
tialized. If the steering guide symbol does not disappear
, have the vehicle
checked by your Lexus dealer.

152
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.

153
2-4. Using other driving systems
2
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

154
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.

155
2-4. Using other driving systems
2
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.