2005 Lexus GX470 sensor

IMPORTANT INFORMATION ABOUT YOUR LEXUS
iii
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 which 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
33
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 (ªAUTOº): 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 bechanged.
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 ªAUTOº position, there may be a case
that the headlig hts 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
34
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 ªACCº or ªLOCKº position.* If you
want to turn off the lights immediately, push the ªLOCKº button
on the wireless remote control key twice. The lights also can
be turned off immediately by pushing the ªLOCKº 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 ªLOCKº 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 started and the headlights are turned off. They will not
go off until the ignition switch is turned off.

SWITCHES
39
NOTICE
Do not operate the wipers if the windshield is dry. It mayscratch the glass.
Rain±sensing windshield wipers

1Automatic control adjuster
2Washer on
To turn the wipers on, move the lever down until you reach
the desired speed setting.
The ignition key must be in the ªONº position.
There are 3 settings:
ªAUTOº position: Automatic operation
ªLOº position: Low speed operation
ªHIº 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.

SWITCHES
40Twist
the automatic control adjuster in the ª±º direction to
lower the sensitivity, and the ª+º 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 ªAUTOº 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 ªAUTOº position.
When the ignition switch is turned off with the wiper lever in the
ªAUTOº 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 ªAUTOº position again.
If you stop the vehicle with the wiper switch in the ªLOº 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 ª+º position.
NOTE: * This feature can be deactivated.
Ask your Lexus dealer for details.

SWITCHES
41
CAUTION
Be careful not to get your fingers caught between the
wipers and windshield.
When the wiper lever is in the ªAUTOº 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 thewindshield.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
66
(d) SRS Warning Light
The indicator comes on when the ignition key is turned to
the ªONº position. It goes off after about 6 seconds. This
means the SRS airbags and front 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 passenger occupant classification system, ªAIRBAG ONº
indicator light, ªAIRBAG OFFº indicator light, front passenger's
seat belt buckle switch, front seat belt pretensioner
assemblies, inflators, warning light, ªRSCA OFFº indicator
light, interconnecting wiring and power sources.
If either of the following conditions occurs, this indicates a
malfunction somewhere in the parts monitored by the warning
light system. Contact your Lexus dealer as soon as possible
to service the vehicle.
 The light does not come on when the ignition key is turned
to the ªONº position or remains on for more than 6 seconds
or flashes.
 The light comes on or starts flashing while driving.
If the light stays on, it indicates that the driver and front
passenger airbags and/or front passenger occupant
classification system, ªAIRBAG ONº indicator light and
ªAIRBAG OFFº indicator light fail. If the light flashes, the side
and curtain shield airbags and/or seat belt pretensioners have
a problem.
(e) Malfunction Indicator Lamp
This lamp comes on when the ignition key is turned to the
ªONº position and goes off after the engine starts. This
means that the warn ing light system is operating properly.
If the lamp remains on, or the lamp comes on while driving,
first check the followings.
 Empty fuel tank
If the fuel tank is empty, refuel immediately.
 Loose fuel tank cap
If the fuel tank cap is loose, securely tighten it.
These cases are temporary malfunctions. The malfunction
indicator lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your
Lexus dealer as soon as possible.
If the fuel tank is not empty or the fuel tank cap is not
loose...
 There is a problem somewhere in the engine, emission
control system, electronic throttle control system, automatic
transmission electrical system or warning light system itself.
Contact your Lexus dealer as soon as possible to service the
vehicle.
If engine speed does not increase when the accelerator pedal
is depressed, there may be a problem somewhere in the
electronic throttle control system.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
78
Outside temperature

U.S.A.

Canada
In outside temperature mode, outside air temperatures
are displayed.
The displayed value is updated every 1 second.
The displayed temperature ranges from ±22 F (±30C) up to
122 F (50C).
If there is some abnormality in the connection of the outside air
temperature sensor, ª±±º will appear on the display. If ª±±º
appears on the display, contact your Lexus dealer.
In some cases, ª±±º may appear momentarily when the ignition
is quickly turned to ªONº. It is normal if it goes out soon.