sensor LEXUS LX470 2007 Owners Manual

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1
1-3. Adjustable components
Before driving
Inside rear view mirror
■To prevent sensor error
CAUTION
■While driving
Do not adjust the position of the mirror.
Doing so may lead to mishandling of the vehicle and an accident, or resulting in
death or serious injury.
In the “AUTO” mode, sensors are used to detect the headlights of vehicles
behind and automatically reduces the reflected light.
Turns “AUTO” mode on/off
The indicator comes on when
“AUTO” mode is turned ON.
The anti-glare mirror default
mode is “AUTO”. The anti-glare
mirror is automatically set to
“AUTO” whenever the ignition
key is turned to the “ON” posi-
tion.
To ensure correct functioning of the sensors,
do not touch or cover the sensors.

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1-7. Safety information
1
Before driving
Airbag system componentsYour vehicle is equipped with AD VANCED AIRBAGS designed based
on US motor vehicle sa fety standards (FMVSS208). The airbag system
controls airbag deployment power for the driver and front passenger. The
driver airbag system consists of the driver seat’s position sensor etc. The
front passenger’s airbag system con sists of the front passenger occupant
classification sensor etc.
The main SRS airbag system componen ts are shown above. The SRS air-
bag system is controlled by the airb ag sensor assembly. The airbag sen-
sor assembly consists of a safing sensor and an airbag sensor.
Front passenger airbag
Airbag sensor assembly
Front passenger occupant
classification indicator light
Occupant detection sensor
SRS warning light
Driver airbag
Front passenger’s seat belt
buckle switch
Driver's seat belt buckle switch
Driver's seat position sensor
Front airbag sensor
Curtain shield airbag
Side airbag
Curtain shield airbag sensor
Side and curtain shield airbag
sensor

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2-3. Operating the lights and windshield wipers
2
When driving
■Daytime running light system
To make your vehicle more visible to other drivers, the headlights turn on automati-
cally (at a reduced intensity) whenever the engine is started and the parking brake
is released. Daytime running lights are not designed for use at night.
■Headlight control sensor
■Automatic light off system
The headlights and tail lights turn off 30 seconds after a door is opened or closed if
the ignition key has been turned to the “ACC” or “LOCK” while the headlights are
turned on. (The lights turn off immediately if the LOCK button on the key is pressed
after all doors are locked.)
To turn the lights on again, turn the ignition key to the “ON” position, or turn the light
switch “OFF” once and then back to the or position.
■Customization
Settings (e.g. light sensor sensitivity) can be changed. ( P. 3 8 9 )
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the wind-
shield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.

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2-3. Operating the lights and windshield wipers
2
When driving
Windshield wipers and washer
■The windshield wiper and washer can be operated when
The ignition key is in the “ON” position.
■Dripping prevention wiper sweep
After washing and wiping operation seve ral times, the wipers operate one more
time after a short delay to prevent dripping.
However, the last sweep will not happen if the vehicle is traveling above 106 mph
(170 km/h).
■Effects of vehicle speed on wiper operation
With the settings other than “AUTO” also, the time until drip prevention wiper
sweep occurs is changed depending on vehicle speed.
With “LO” selected, wiper operation will be switched from low speed to intermit-
tent wiper operation only when the vehicle is stationary.
With “AUTO” selected, the wipers wi ll operate automatically when the
sensor detects falling rain. The system automatically adjusts wiper timing in
accordance with rain volume and vehicle speed.
Sensor sensitivity (low)
Sensor sensitivity (high)
Rain-sensing wiper operation
Low speed wiper operation
High speed wiper operation
Wash/wipe operation

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2-3. Operating the lights and windshield wipers
■Rain drop sensor
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the wind-
shield washer fluid reservoir.
■In extremely hot or cold weather
The system will turn off if the windshield gets extremely hot (at more than 194F
[90 C]) or cold (at less than -22 F [-30C]).
■Windshield wiper features
●The rear window and outside rear view mirror defoggers automatically turn on
when you operate the wipers.
■Customization
Settings (e.g. drip prevention function) can be changed. (P. 3 8 9 )
CAUTION
■Caution regarding the use of windshield wipers in “AUTO” mode
The windshield wipers may operate unexpect edly if the sensor is touched or the
windshield is subject to vibration in “AUTO” mode. Take care that your fingers or
anything else do not become caught in the windshield wipers.
The sensor judges the amount of raindrops.

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2-4. Using other driving systems
Lexus night view system (if equipped)
The Lexus night view system assists the driver by displaying a monochrome
image of the view in front of the vehicle while driving at night.
Near-infrared rays are irradi-
ated forward and an image con-
verted from its irradiated light is
shown on the head-up display.
The image is shown ranging
from the tip of the low beam to
the high beam.
Near-infrared floodlight
Near-infrared camera
Head-up display
Automatic light control
sensor
■ Turning on the system and adjustin g the brightness of the display
ON/OFF
“MAIN” indicator light comes
on when the system is on.
Darker
Brighter
If the display is too bright, you
cannot see surroundings
through the windshield clearly.

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2-4. Using other driving systems
CAUTION
■While driving
●This system should be used as a supplemental aid to help you see objects. Never
depend on this system only. Be sure to view objects with your own eyes.
●This system is designed to help you see objects better when driving in a flat area
with few curves in darkness. Use of this function in an area with many curves or
slopes or in a well-lit area could cause an accident.
■Conditions which may affect the Lexus night view system
●If the front bumper is deformed in a collision, etc., the performance of the near-
infrared floodlight will be affected. Have it repaired or replaced by your Lexus
dealer.
●If you notice the inner lens of the near-infrared camera is dirty, have it inspected
by your Lexus dealer.
●If the top of the windshield fogs up, the lens of the near-infrared camera will also
fog up, resulting in deterioration of the system performance. Defog the wind-
shield by pushing the windshield air flow button on the air conditioning.
●If the outside temperature is low, the head-up display may darken or it may take
time to display the image with the system on.
●The automatic light control sensor may not function properly if an object is placed
on the sensor, or anything that blocks the sensor is affixed to the windshield.
■To a v o i d i n j u r y
The near-infrared floodlight irradiates stro ng energy nut visible to the eyes. Do not
stare at the floodlight at close range for a long time.

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3-5. Other interior features
3
Interior features
CAUTION
■While driving
Do not adjust the display.
Be sure to adjust the display only when the vehicle is stopped.
■When doing the circling calibration
Be sure to secure a wide space, and watch out for people and vehicles in the neigh-
borhood. Do not violate any local traffic rules while performing circling calibration.
NOTICE
■To avoid the compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror.
Doing this may cause a malfunction of the compass sensor.
■To ensure normal operation of the compass
●Do not perform circling calibration of the compass in a place where the earth's
magnetic field is subject to interference by artificial magnetic fields.
●During calibration, do not operate elec tric systems (moon roof, power windows,
etc.) as they may interfere with the calibration.

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5-2. Steps to take in an emergency
■Key reminder buzzer
The buzzer indicates that the key has not been removed (with the ignition key in the
ACC or LOCK position and the driver’s door opened).
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■Front passenger detection sensor and passenger seat belt reminder
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash, even if a passenger is not sitting in
the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■SRS warning light
This warning light system monitors the following:
●The airbag sensor assembly
●Front airbag sensors
●The curtain shield airbag sensors
●The side and curtain shield airbag sensors
●The seat belt buckle switches
●The driver's seat position sensor
●The inflators
●The interconnecting wiring and power sources
●The front passenger occupant classification system and indicator light
●The seatbelt pretensioners
●The roll sensing of curtain shie ld airbags off indicator light.

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6-2. Customization
6
Vehicle specifications
*: Vehicles sold outside Canada
ItemFunctionDefault settingCustomizedsetting
Moon roof
(
P. 4 1 )
Linked door lock opera-
tionONOFF
Linked door key opera-
tionOpen and closeOpen only
Close only
Linked operation of com-
ponents when door key is
used
Slide onlyTilt only
Wireless remote control
linked operationON
(open only)OFF
Linked operation of com-
ponents when wireless
remote control used
Slide onlyTilt only
Automatic
light control
system
(
P. 1 1 2 )
Light sensor sensitivityLevel 3Levels 1 to 5
Ti m e e l a p s e d b e f o r e
headlights automatically
turn off after doors are
closed
30 seconds
0 seconds
60 seconds
90 seconds
Daytime running lightONOFF*