2018 LEXUS LX570 sensor

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LX570_OM_OM60Q78U_(U) 4-3. Operating the lights and wipers
4
Driving
Windshield wipers and washer The wiper operation is selected by moving the lever as follows. 
Type A
Temporary operation
Rain-sensing operation (“AUTO”)
Low speed operation
High speed operation When “AUTO” is selected, the wipers
will operate automatically when the sen-
sor detects falling rain . The system auto-
matically adjusts wiper timing in
accordance with rain volume and vehi-
cle speed.
The sensor sensitivity can be adju sted when “AUTO” is selected.
Increases the sensitivity
Decreases the sensitivityOperating the wiper lever 1
2
3
4
5
6

LX570_OM_OM60Q78U_(U) 2334-3. Operating the lights and wipers
4
Driving The sensor sensitivity can be adju sted when “AUTO” is selected.
Increases the sensitivity
Decreases the sensitivity
Washer/wiper dual operation The wipers operate automatically. (After
operating several times, the wipers
operate one more time after a short
delay to prevent dripping.) ■
The windshield wipers and washer can be operated when
The engine switch is in IGNITION ON mode. ■
Raindrop sensor
●
If the wiper switch is turned to the “AUTO” position while the engine switch is in
IGNITION ON mode, the wipers will operate on ce to show that “AUTO” mode is acti-
vated. ●
When the sensor sensitivity ring is turned toward high while in “AUTO” mode, the wip-
ers will operate once to indicate that the sensor sensit ivity is enhanced.●
If the temperature of the rain drop sensor is 185 ° F (85 ° C) or higher, or -22 ° F (-30 ° C)
or lower, the automatic operation may not occur. In this case, operate the wipers in any
mode other than “AUTO”. 5
6
7
●
The raindrop sensor judges the amount of
raindrops.
An optical sensor is ad opted. It may not oper-
ate properly when sunlight from the rising or
setting of the sun inte rmittently strikes the
windshield, or if bugs etc. are present on the
windshield.

234
LX570_OM_OM60Q78U_(U) 4-3. Operating the lights and wipers■
If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the windshield
washer fluid reservoir.
WARNING ■
Caution regarding the use of wind shield wipers in “AUTO” mode
The windshield wipers may operate unexpectedly if the sensor is touched or the wind-
shield is subject to vibration in “AUTO” mo de. Take care that your fingers etc. anything
else does not become caught in the windshield wipers. ■
Caution regarding the use of washer fluid
When it is cold, do not use the washer fl uid until the windshield becomes warm. The
fluid may freeze on the windshield and cause lo w visibility. This may lead to an accident,
resulting in death or serious injury.
NOTICE ■
When the windshield is dry
Do not use the wipers, as they may damage the windshield. ■
When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may overheat. ■
When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump may be cau sed if the lever is pulled toward you and
held continually. ■
When a nozzle becomes blocked
Do not try to clear it with a pin or other object. The nozz le will be damaged.

LX570_OM_OM60Q78U_(U) 2434-5. Using the driving support systems
4
Driving The pre-collision system is equipped with a sophisticated computer that will
record certain data, such as:
• Accelerator status
•Brake status
• Vehicle speed
• Operation status of the pre-collision system functions
• Information (such as the distance an d relative speed between your vehicle
and the vehicle ahead or other objects)
• Images from the camera sensor (available only when the pre-collision braking
function or the pre-collision brake assist function was operating)
The pre-collision system does not record co nversations, sounds or images of the
inside of the vehicle. ●
Data usage
Lexus may use the data recorded in this computer to diagnose malfunctions,
conduct research and develo pment, and improve quality.
Lexus will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if
the vehicle is leased
• In response to an official request by the police, a court of law or a govern-
ment agency
• For use by Lexus in a lawsuit
• For research purposes where the data is not tied to a specific vehicle or
vehicle owner●
Recorded images can be erased using a specialized device.
The image recording function can be disa bled. However, if the function is dis-
abled, data from when the pre-collision system operates will not be available.Vehicle data recording

244
LX570_OM_OM60Q78U_(U) 4-5. Using the driving support systems
Two types of sensors, located behind the front grille and windsh ield, detect infor-
mation necessary to operate the drive assist systems.
Radar sensor
Camera sensorSensors 1
2
WARNING ■
To avoid malfunction of the radar sensor
Observe the following precautions.
Otherwise, the radar sensor may not operat e properly, possibly leading to an accident
resulting in death or serious injury. ●
Keep the radar sensor and front grille emblem clean at all times.
●
Do not attach accessories, stickers (includi ng transparent sticke rs) or other items to
the radar sensor, front grille emblem or surrounding area. ●
Do not subject the radar sensor or su rrounding area to a strong impact.
If the radar sensor, front grille, or front bumper has been subjected to a strong impact,
have the vehicle inspected by your Lexus dealer. ●
Do not disassemble the radar sensor. ●
Do not modify or paint the radar sensor, front grille emblem or surrounding area. ●
If the radar sensor, front grille, or front bumper needs to be removed and installed, or
replaced, contact your Lexus dealer. Radar sensor
Front grille emblem
If the front of the rada r sensor or the front or
back of the front grille emblem is dirty or
covered with water droplets, snow, etc., clean
it.
Clean the radar sensor and front grille
emblem with a soft cloth so you do not mark
or damage them. 1
2

LX570_OM_OM60Q78U_(U) 2454-5. Using the driving support systems
4
Driving WARNING ■
To avoid malfunction of the camera sensor
Observe the following precautions.
Otherwise, the camera sensor may not oper ate properly, possibly leading to an acci-
dent resulting in deat h or serious injury.●
Keep the windshield clean at all times.
• If the windshield is dirty or covered with an oily film, water droplets, snow, etc.,
clear the windshield.
• If a glass coating agent is applied to the wi ndshield, it will still be necessary to use
the windshield wipers to remove water droplets, etc. from the area of the wind-
shield in front of the camera sensor.
• If the inner side of the windshield where th e camera sensor is installed is dirty, con-
tact your Lexus dealer.
●
If the part of the windshield in front of the camera sensor is fogged up or covered with
condensation or ice, use the windshield de fogger to remove the fog, condensation or
ice. ( → P. 399)●
If water droplets cannot be properly removed from the area of the windshield in front
of the camera sensor by th e windshield wipers, replace the wiper insert or wiper
blade.
If the wiper inserts or wiper blades need to be replaced, contact your Lexus dealer.●
Do not attach window tinting to the windshield. ●
Replace the windshield if it is damaged or cracked.
If the windshield needs to be re placed, contact your Lexus dealer.●
Do not get the camera sensor wet. ●
Do not allow bright lights to shine into the camera sensor.●
Do not dirty or damage the camera sensor.
When cleaning the inside of the windshield , do not allow glass cleaner to contact the
lens. Also, do not touch the lens.
If the lens is dirty or damaged, contact your Lexus dealer. ●
Do not subject the camera sensor to a strong impact. ●
Do not attach objects, such as stickers, trans-
parent stickers, etc., and so forth, to the outer
side of the windshield in front of the camera
sensor (shaded area in the illustration).
A: From the top of the windshield to approxi-
mately 0.4 in. (1 cm) below the bottom of the
camera sensor
B: Approximately 7.9 in. (20 cm) (Approxi-
mately 4.0 in. (10 cm) to the right and left
from the center of the camera sensor)

246
LX570_OM_OM60Q78U_(U) 4-5. Using the driving support systems
WARNING ●
Do not change the installation position or direction of the camera sensor or remove it. ●
Do not disassemble the camera sensor. ●
Do not modify any components of the vehi cle around the camera sensor (inside rear
view mirror, et c.) or ceiling.●
Do not attach any accessories that may obst ruct the camera sensor to the hood, front
grille or front bumper. Contact your Lexus dealer for details.●
If a surfboard or other long object is to be mounted on the roof, ma ke sure that it will
not obstruct the camera sensor. ●
Do not modify the head lights or other lights.

249
LX570_OM_OM60Q78U_(U) 4-5. Using the driving support systems
4
Driving
PCS (Pre-Collision System) ∗
∗ : If equippedThe pre-collision system uses a radar sensor and camera sensor to detect
vehicles and pedestrians in front of yo ur vehicle. When the system determines
that the possibility of a frontal collision with a vehicle or pedestrian is high, a
warning operates to urge the driver to take evasive action and the potential
brake pressure is increased to help the driver avoid the collision. If the system
determines that the possibility of a fr ontal collision with a vehicle or pedes-
trian is extremely high, the brakes are automatically applied to help avoid the
collision or help reduce the impact of the collision.
The pre-collision system can be disabled/enabled and the warning timing can
be changed. ( → P. 253)