LEXUS LS430 2006 Owners Manual

115
2-3. Operating the headlight and windshield wipers
2
When driving
■Intermittent operation features
The time interval between sweeps decreases as vehicle speed increases. When
v
ehicle speed exceeds 12 mph (20 km/h) with the interval adjusted in the lowest
position, the time interval is set to the minimum 1.5 seconds.
If you stop the vehicle with the wiper switch in the “LO” position, the wipers auto -
matically change to intermittent operation.* This will not happen if the interval
adjuster is set

to the lowest position.
*This feature can be deactivated. ( P. 3 8 4 )
■Windshield wiper features
●When the washer button is pressed with the wipers OFF, the wipers will make 3
sweeps, then pause, then a final sweep to completely clear the windshield*. The
length of the pause will depend on the vehicle speed. The last sweep will not
happen if the vehicle is traveling above 106 mph (170 km/h).
*The last single sweep can be deactivated. ( P. 3 8 4 )
●When the windshield washer switch is pushed with the headlights on, the head -
light cleaners automatically operate once.
●The rear window and outside rear view mirror defoggers automatically turn on
when you operate the wipers.

116
2-3. Operating the headlight and windshield wipers
■Automatic wiper control sensor
■In extremely hot or cold weather
The system will turn off if the windshield gets extremely hot (at more than 176 °F
[80 °C]) or cold (at less than 14 °F [-10 °C]).
CAUTION
■When the wiper lever is in the “AUTO” position with the ignition switch on
The wipers may operate automatically in the following cases:
• If you touch or wipe the uppe
r center of the windshield adjacent to the sensor.
• If you windshield vibrates.
• If you touch the sensor
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■If the washer switch is pressed and held continually
Damage to be the washer fluid pump may be caused if the washer switch is pressed
and he

ld continually.
The wiper speed is determined by the vehi-
cle speed and the amount of rain detected
by the automatic wiper control sensor.

117
2-3. Operating the headlight and windshield wipers
2
When driving
Headlight cleaner switch
NOTICE
■When the washer fluid tank is empty
Do not use this function when the washer fluid tank is empty. 
This may cause the washer fluid pump to overheat.
You can spray fluid on the headlights when they are on and the ignition switch
is in the “ON” position.
Press the switch to clean the
headlights.1

118
2-4. Using other driving systems
Lexus park assist system
Indicators and beeps
The Lexus park assist system indicates the distance to the obstacle
according to the following chart.
Front or rear sensor
Distance to
the obstacle1. About 3.0 ft. (1 m) to about
1.5 ft. (50 cm)2. About 1.5 ft. (50 cm) to about 1.1 ft. (37.5 cm)3. About 1.1 ft.
(50 cm) to
about 0.8 ft. (25 cm)4. Less than
about 0.8 ft.
(25 cm)
Indicator bars
Flashes
BeepsFront: None
Rear: SlowMediumFastTo n e
The Lexus park assist system detects the nearby objects and their approxi-
mate distance from your vehicle, and guides you using a screen display and
al

arms when driving your vehicle at parking speeds
Turn the system on
A beep sounds and a graphic
image appears on the multi-
information display

.
Push the button once more to turn
off the system.1
1

119
2-4. Using other driving systems
2
When driving
Corner sensor
Distance to
the obstacle1. About 3.0 ft. (1 m) to about
1.5 ft. (50 cm)2. About 1.5 ft. (50 cm) to about 1.1 ft. (37.5 cm)3. About 1.1 ft.
(37.5 cm) to about 0.8 ft. (25 cm)4. Less than
about 0.8 ft.
(25 cm)
Indicator
archesNone
Flashes
BeepsNoneSlowFastTo n e
■Sensors
Avoid damaging the sensors and the
area around them.
Keep the sensors free from mud, snow,
ice and other debris

120
2-4. Using other driving systems
■Detection range
■Objects or situations which may result in mistaken obstacle detection
●When you stop your vehicle in extreme hot or cold weather.
●Foreign matter such as snowflakes or mud gets on the sensor.
●Road bumps, gravel or glass if driving on such surfaces.
●Devices issuing ultrasonic waves such as another vehicle’s horn, motorcycle’s
engine, the air braking sound from heavy-duty vehicles, if such a devices are
operated around your vehicle.
●Rain or water splashing over the sensor.
●The ground, if the vehicle is on non-level ground
●A radio antenna, towing eyelet, towing hitch or fender pole, if mounted.
●Mud, ice or snow on the sensor.
●High curbs.
About 3 ft. (1 m)
About 1.5 ft (50 cm)1
2

121
2-4. Using other driving systems
2
When driving
■Objects which may not be detected
●Wires or ropes.
●Objects with a surface area too small to reflect ultrasonic waves such as a
chain-link fence.
●Sound wave absorbing objects such as cotton or snow.
●Objects with a sharp edge.
●Shorter objects.
●Tall objects with the upper part projected.
■Operating condition
The ignition switch must b
e turned to ON.
■Park assist graphics (vehicles equippe d with the Navigation system) System
The park assist graphics also appear on the n
avigation display. For details, see the
separate “Navigation System Owner’s Manual”.
■Certification for the Lexus park assist system (Canada)
This ISM device complies with Canadian ICES-001.
■Failure warnings
If a system error is detected, the master warning light comes on, 5 beeps sound, the
fo
llowing warning message appears, and gr aphic information indicates the faulty
sensor. ( P.334 )
■Customization
The volume of the beeps can be changed. ( P. 3 8 4 )

122
2-4. Using other driving systems
CAUTION
■To prevent park assist system malfunction
Do not install anything within the sensor detect
ion range (accessories, etc.). Doing
so could cause a malfunction, which could lead to an accident.
NOTICE
■Situations which may cause detection failure
●Sensors will not detect obstacles directly under the bumper. A short object, thin
stake or the like may cease to be detected as the vehicle draws close.
●If an obstacle is very close to the vehicle.
●Sensors will malfunction if subjected to a strong impact.
■System malfunction
●An accident will affect the sensors, resulting in system failure.
●If the indicators remain on without a beeping sound, the system may be malfunc -
tioning. Contact your Lexus dealer.

123
2-4. Using other driving systems
2
When driving
Rear view monitor system
■Displayed area
The rear view monitor system assists the driver by displaying an image of the
area behind the vehicle. The displayed image is a horizontally reversed mirror
image of the inside rear view mirror.
Rear view image is displayed when
the selector lever is in the “R” posi -
tion.
If you move the lever out of “R”
position, the screen returns to the
previous one.
The area covered by the camera is limited.
Objects which are close to either corner
of the bumper or under the bumper can-
not be seen on the screen.
The area displayed on the screen may vary
according to vehicle orientation or road
conditions.
Corner of bumper
1

124
2-4. Using other driving systems
■Rear view monitor system camera
■Smear effect
In the following cases, it may become difficult
to see the images on the screen, even when
the system is functioning correctly.
• In the dark (e.g., at night).
• If the temperature near the lens is extremely high or low.
• If water droplets adhere to the camera, or when humidity is high (e.g., when it rains).
• If foreign matter (e.g., snow or mud) adheres to the camera lens.
• If the sun or headlights are shining directly
into the camera lens.
If a bright light (for example, sunlight
reflected off the vehicle body) is picked up by
the camera, a smear effect* peculiar to the
camera may occur.
*: Smear effect-A phenomenon that occurs when a bright light (for example, sunlight
reflected off the vehicle body) is picked up
by the camera; when transmitted by the
camera, the light source appears to have a
vertical streak above and below it.