sensor Lexus GX470 2006 Electrical Components / LEXUS 2006 GX470 OWNER'S MANUAL (OM60B99U)

IMPORTANT INFORMATION ABOUT YOUR LEXUS
iv
Event data recorder
Your vehicle has computers that monitor and control certain
aspects of your vehicle. These computers assist in driving and
maintaining optimal vehicle performance. Besides storing
data useful for troubleshooting, there is a system to record data
in a crash or a near car crash event. This is called an Event
Data Recorder (EDR).
The SRS airbag sensor assembly contains the EDR. In a
crash or a near car crash event, this device may record some
or all of the following information:
 Engine speed
 Whether the brake pedal was applied or not
 Vehicle speed
 To what extent the accelerator pedal was depressed
 Position of the transmission selector lever
 Whether the driver and front passenger wore the seat belts
or not
 Driver’s seat position
 Front passenger’s occupant classification
 SRS airbag deployment data
 SRS airbag system diagnostic data If your vehicle is equipped with a vehicle stability control (VSC)
system,
its Electronic Control Unit (ECU) may contain another
EDR. There are a variety of driving situations which include
activating the VSC under wh ich the VSC EDR will record
certain information. The VSC EDR may record some or all of
the following information:
 Behavior of the vehicle
 Steering wheel angle
 Vehicle speed
 To what extent the accelerator pedal was depressed
 To what extent the brake pedal was applied
 To what extent the ECU controlled the condition of the 4
wheels
 Vehicle stability control system diagnostic data
The information above is intended to be used for the purpose
of improving vehicle safety performance. Unlike general data
recorders, the EDR does not record sound data such as
conversation between passengers.

SWITCHES
30
HEADLIGHT SWITCH
1U.S.A.2Canada
To turn the lights on, twist the knob on the end of the lever.
FIRST CLICKSTOP: Only the parking, tail, license plate, side
marker and instrument panel lights turn on.
SECOND CLICKSTOP: Headlights also turn on.
THIRD CLICKSTOP (“AUTO”): The headlights and all other
lights automatically turn on depending on the darkness of the
surroundings. *
NOTE:
* The sensitivity of the automatic light control sensor can be
changed.
Ask your Lexus dealer for details. Vehicles sold in U.S.A.: When the headlights are on, the
headlight indicator lights up in the instrument cluster.
Vehicles sold in Canada:
When the tail lights are on, the tail
light indicator lights up in the instrument cluster.
With the knob in the “AUTO” position, there may be a case
that the headlights do not turn on immediately, even when
the vehicle enters a dark place such as a tunnel or parking
lot according to lighting conditions. In this case, we
recommend you to twist the knob manually to the second
clickstop to turn on the headlights immediately.
When the headlight switch is turned to the first or second
clickstop, the brightness of the instrument cluster will be
reduced slightly unless the instrument panel light control dial
is turned fully up.
However, the brightness of the instrument cluster will not be
reduced in daytime even when the headlight switch is turned
to first or second clickstop.

SWITCHES
31
The automatic light control sensor is on top of the driver’s side
instrument panel.
Do not place anything on the instrument panel, and/or do not
affix anything on the windshield to block this sensor.
When the headlights are on, they automatically turn off about
30 seconds after any side door is opened and closed with the
ignition key turned to the “ACC” or “LOCK” position.* If you
want to turn off the lights immediately, push the “LOCK” button
on the wireless remote control key twice. The lights also can
be turned off immediately by pushing the “LOCK” button on the
wireless remote control key with all the doors locked.
NOTE:
* The time before turning off the lights can be changed.
Ask your Lexus dealer for details. If any of the side door is kept opened, the lights automatically
turn off after 30 minutes.
When the headlight switch is on with all the doors locked,
pushing
the “LOCK” button on the wireless remote control key
turns off the headlights.
If you are going to park for over one week, make sure the
headlight switch is off.
Daytime Running Light System
The daytime running light system make your front turn signal
lights turn on when the parking brake is released with the
engine sta rted and the headlights are turned off. They will not
go off until the ignition switch is turned off.
NOTICE
To prevent the battery from being discharged, do not
leave the lights on longer than necessary when the
engine is not running.

SWITCHES
35
To turn the wipers on, move the lever down until you reach
the desired speed setting.
The ignition key must be in the “ON” position.
There are 3 settings:
“AUTO” position: Automatic operation
“LO” position: Low speed operation
“HI” position: High speed operation
Automatic operation
The wiper speed is determined by the amount of raindrops
and sunlight detected by the automatic wiper control
sensor.
Twist
the automatic control adjuster in the “–” direction to
lower the sensitivity, and the “+” direction to boost the
sensitivity.
The sensor is on the inside of the windshield as shown above. Even if the wiper lever is in the
“AUTO” position, the system will
switch to variable intermittent operations in the following
conditions:
 When the windshield gets extremely cold (at less than
–10 C or 14 F)
 When the system malfunctions
However, when the windshield gets extremely hot (at more
than 90C or 194F), the wipers do not operate even if the
wiper lever is in the “AUTO” position.
When the ignition switch is turned off with the wiper lever in the
“AUTO” position, and then the ignition switch is turned on
again, the automatic operation may not work even if raindrops
are on the windshield.
In this case, move the lever to another position and return it to
the “AUTO” position again.
If you stop the vehicle with the wiper switch in the “LO” position,
the wiper speed automatically changes from low speed to
intermittent operation speed.* This function does not work
when the automatic control adjuster is in the “+” position.
NOTE:
* This feature can be deactivated.
Ask your Lexus dealer for details.

SWITCHES
36
CAUTION
Be careful not to get your fingers caught between the
wipers and windshield.
When the wiper lever is in the “AUTO” position with the
ignition switch on, the wipers could operate
automatically in the following cases:
 If you touch the upper center of the windshield
adjacent to the sensor.
 If you wipe the upper center of the windshield
(adjacent to which the sensor is located) with a towel.
 If the windshield vibrates.
 If you touch the sensor.
NOTICE
Do not apply detergent to or wet the automatic wiper
control sensor when cleaning the inside of the
windshield.
To make the washer squirt, pull the lever toward you and
release it.
If the wiper lever is in the “OFF” position, the wipers will
automatically make 3 wipes and then a single wipe later to
sweep the windshield completely.* The interval between the
3 wipes and the last wipe will depend on the vehicle speed. The
last sweep does not happen if the vehicle speed exceeds about
170 km/h (106 mph).
NOTE:
* The last single wipe can be deactivated.
Ask your Lexus dealer for details.
The low washer fluid warning light in the instrument cluster
comes on when the fluid level in the tank becomes nearly
empty. For information on adding washer fluid, see “Adding
washer fluid” on page 558.
In cold weather, warm the windshield with the defroster before
using the washer. This will help prevent icing, which could
block your vision.
NOTICE
Do not operate the wipers if the windshield is dry. It may
scratch the glass.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
55
(c) Front Passenger’s Seat Belt Reminder Light
The light acts as a reminder to have the front passenger buckle
up the seat belt.
Once the ignition key is turned to “ON” or “START”, the
reminder light flashes if a passenger sits in the front passenger
seat and does not fasten the seat belt.
If luggage or other load is placed on the front passenger seat,
depending on its weight, the reminder light may flash.
(d) SRS Warning Light
The indicator comes on when the ignition key is turned to
the “ON” position. It goes off after about 6 seconds. This
means the SRS airbags and seat belt pretensioners are
operating properly.
This warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensor assemblies, curtain shield airbag sensor assemblies,
driver’s seat position sensor, driver’s seat belt buckle switch,
front pas senger occupant classification system, “AIRBAG ON”
indicator light, “AIRBAG OFF” indicator light, front passenger’s
seat belt buckle switch, seat belt pretensioner assemblies,
inflators, warning light, “RSCA OFF” indicator light,
interconnecting wiring and power sources.
If any of the following conditions occurs, this indicates a
malfunction of the airbags or seat belt pretensioners. Contact
your Lexus dealer as soon as possible.
 The light does not come on when the ignition key is turned
to the “ON” position or remains on for more than 6 seconds
or flashes.
 The light comes on or starts flashing while driving.
The SRS warning light and “AIRBAG OFF” indicator light will
be illuminated if there is a malfunction in the front passenger
occupant classification system.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
67
In outside temperature mode, outside air temperatures
are displayed.
The displayed value is updated every 1 second.
The displayed temperature ranges from
−22F (− 30C) up to
122 F (50C).
If there is some abnormality in the connection of the outside air
temperature sensor, “ −−” will appear on the display. If “ −−”
appears on the display, contact your Lexus dealer.
In some cases, “ −−” may appear momentarily when the ignition
is quickly turned to “ON”. It is normal if it goes out soon. 
Average fuel consumption
 U.S.A.
Canada

INTERIOR EQUIPMENT
83
NOTICE
To prevent the battery from being discharged, do not
use the power outlet longer than necessary when the
engine is not running.
 Close the power outlet lid when the power outlet is
not in use. Inserting anything other than an
appropriate plug that fits the outlet, or allowing any
liquid to get into the outlet may cause electrical
failure or short circuits.
The power outlet is not designed for the following electric
appliances even though their power consumption is
under 115 VAC/100W. These appliances may not operate
properly.
Appliances with high initial peak wattage: Cathode−ray
tube type televisions, compressor −driven refrigerators,
electric pumps, electric tools, etc.
 Measuring devices which process precise data: Medical
equipment, measuring instruments, etc.
 Other appliances requiring an extremely stable power
supply: Microcomputer −controlled electric blankets, touch
sensor lamps, etc.
Certain electrical appliances may cause radio noise.
GLOVE BOX
1Unlock2Open3Lock
To use the glove box:
Open by pulling the lever.
Lock by inserting the master key and turning it clockwise.
Unlock by inserting the master key and turning it
counterclockwise.
With the tail lights on, the glove box light will come on when the
glove box door is open.
CAUTION
To reduce the chance of injury in case of an accident or
a sudden stop, always keep the glove box door closed
while driving.

OCCUPANT RESTRAINT SYSTEMS
142
Seat belt pretensioners
The driver and front passenger’s seat belt pretensioners
are designed to be activated in response to a severe
frontal impact or a vehicle rollover.
When the sensor detects a severe frontal impact or a vehicle
rollover, the front seat belts are quickly drawn back by the
retractors so that the belts snugly restrain the occupants.
The front passenger’s seat belt pretensioner will not activate
if no passenger is detected in the front passenger seat by the
front passenger occupant classification system. However, the
front passenger’s seat belt pretensioner may activate if
luggage is put on the seat, or the seat belt is buckled up
regardless of the presence of an occupant in the seat. (As for
the front passenger occupant classification system, see page
168.)
The seat belt pretensioners and SRS airbags may not operate
together in case of collisions at a certain speeds and angles.
Roll sensing of curtain shield airbags off (RSCA OFF)
indicator light
The seat belt pretensioners will not operate in a vehicle rollover
if the “RSCA OFF” indicator light is on. For details, see “Rol\
l
sensing of curtain shield airbags off switch” on page 174.

OCCUPANT RESTRAINT SYSTEMS
143
1Front airbag sensors
2Seat belt pretensioner assemblies
3Front passenger occupant classification system
(ECU and sensors)
4SRS warning light
5Front passenger’s seat belt buckle switch
6Airbag sensor assembly
The front seat belt pretensioner system consists mainly of the
above components, and their locations are shown in the
illustration.
The front seat belt pretensioners are controlled by the airbag
sensor assembly. The airbag sensor assembly consists of a
safing sensor and airbag sensor.
When the front seat belt pretensioners are activated, an
operating noise may be heard and a small amount of non −toxic
gas may be released. This does not indicate that a fire is
occurring. This gas is normally harmless. Once
the front seat belt pretensioners have been activated, the
seat belt retractors remain locked.
CAUTION
 Do not modify, remove, strike or open the seat belt
pretensioner assemblies, airbag sensor or
surrounding area or wiring. Failure to follow these
instruction may prevent the seat belt pretensioners
from activating correctly, cause sudden operation of
the system or disable the system, which could result
in death or serious injury. Consult your Lexus dealer
about any repair and modification.
 Do not modify or change the suspension system.
Such changes may cause the curtain shield airbags
to inflate accidentally, which could result in death or
serious injury . Consult your Lexus dealer about any
repair and modification.
 Do not use tires or wheels other than the
manufacture’s recommended size. Such a use may
cause the curtain shield airbags and seat belt
pretensioners to inflate accidentally, which could
result in death or serious injury. For details, see
“Checking and replacing tires” on page 538.