sensor Lexus GX460 2014 Using the air conditioning system and defogger / LEXUS 2014 GX460 (OM60K80U) Workshop Manual

GX460_OM_OM60K80U_(U)
4356-1. Maintenance and care
6
Maintenance and care
CAUTION
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may cause the
electrical components etc. to catch fire.
■When cleaning the windshield (vehicles with rain-sensing windshield wiper)
●When the upper part of the windshield where the raindrop sensor is located is
touched by hand
●When a wet rag or similar is held close to the raindrop sensor
●If something bumps against the windshield
●If you directly touch the raindrop sensor body or if something bumps into the raindrop
sensor
■Precautions regarding the exhaust pipe
Exhaust gasses cause the exhaust pipe to become quite hot.
When washing the vehicle, be careful not to touch the pipe until it has cooled suffi-
ciently, as touching a hot exhaust pipe can cause burns.
■Precautions regarding the Blin d Spot Monitor (if equipped)
If the paint of the rear bumper is chippe d or scratched, the system may malfunction.
If this occurs, consult your Lexus dealer.
Set the wiper switch to off.
If the wiper switch is in “A U T O ” , t h e w i p e r s m a y
operate unexpectedly in the following situa-
tions, and may result in hands being caught or
other serious injuries and cause damage to the
wiper blades.OFF

GX460_OM_OM60K80U_(U)
4396-1. Maintenance and care
6
Maintenance and care
NOTICE
■Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces:
●Remove any dust or dirt from leather surfaces immediately.
●Do not expose the vehicle to direct sunlight for extended periods of time. Park the
vehicle in the shade, especially during summer.
●Do not place items made of vinyl, plastic, or containing wax on the upholstery, as they
may stick to the leather su rface if the vehicle interior heats up significantly.
■When cleaning the inside of the windshield (vehicles with LDA [Lane Departure
Alert])
Be careful not to touch the camera sensor ( P. 2 2 8 ) .
If the camera is accidentally scratched or hit, LDA may not operate properly or may
cause a malfunction.
■Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes into contact
with electrical components such as the au dio system above or under the floor of the
vehicle. Water may also cause the body to rust.
■Cleaning the inside of the rear window
●Do not use glass cleaner to clean the rear window, as this may cause damage to the
rear window defogger heater wires or antenna. Use a cloth dampened with luke-
warm water to gently wipe the window cl ean. Wipe the window in strokes running
parallel to the heater wires or antenna.
●Be careful not to scratch or damage the heater wires or antenna.

5107-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
*1: Open door warning buzzer:  P. 5 1 6
*2: Seat belt reminders:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer
sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer
sounds once. If the seat belt is still unfastened after 30 seconds, the buzzer will sound
intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 20 more seconds.
The front passenger’s seat belt buzzer sounds to alert the front passenger that his or
her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 30 seconds, the buzzer will
sound intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 20 more seconds.
■SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag sensors, side
and curtain shield airbag sensor s, rear side and curtain shield airbag sensors, floor sen-
sor, driver’s seat belt buckle switch, front passenger occupant classification system (ECU
and sensors), “AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front pas-
senger’s seat belt buckle sw itch, seat belt pretensioner assemblies, airbags, intercon-
necting wiring and power sources. ( P. 3 4 )
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sittin g in the seat.
●If a cushion is placed on th e seat, the sensor may not detect a passenger, and the warn-
ing light may not operate properly.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.
■If the low speed four-wheel drive indicator light or the center differential lock indicator
light blinks
Take the specified steps. ( P. 3 3 2 )

5167-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
Indicates that one or more of the doors is not fully closed
The system also indicates which doors are not fully
closed.
If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate that
the door(s) are not yet fully closed.
 Make sure that all the doors are closed.
Indicates that the glass hatch is not fully closed
If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate that
the glass hatch is not yet fully closed.
 Close the glass hatch.
(If equipped)
Indicates a malfunction in the Intuitive parking assist
All assist-sensors flash.
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates that a intuitive parkin g assist is dirty or covered
with ice
A buzzer also sounds.
 Clean the sensor.
(Flashes)
Indicates that the vehicle is being driven at 3 mph (5
km/h) or more with the parking brake still engaged A buzzer also sounds.
 Release the parking brake.
Wa r n i n g m e s s a g eDetails/Actions

5177-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
7
When trouble arises
(If equipped)
Indicates that the radar sensor is dirty or covered with
ice A buzzer also sounds.
 Clean the sensor.
(If equipped)
Indicates that the radar cruise control system is unable to
judge vehicle-to-vehicle distance
A buzzer also sounds.
 Tu r n o f f s n o w m o d e .
If the windshield wipers are on, turn them off or set
them to a mode other than AUTO or high speed
wiper operation.
(If equipped)
Indicates that the LDA (Lane Departure Alert) system is
suspended
The camera sensor temperature is higher than the
operation temperature range.
A buzzer also sounds.
 Restart the LDA after driving for a while.
(If equipped)
Indicates that a Blind Spot Monitor sensor or the sur-
rounding area on the bumper is dirty or covered with ice
A buzzer also sounds.
 Clean the sensor and its surrounding area on the
bumper.
Indicates a malfunction in:
• The cruise control system (if equipped); or
• The dynamic radar cruise control system (if equipped)
Press the “ON/OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
Wa r n i n g m e s s a g eDetails/Actions

5207-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supplement”
for the maintenance interval applicable to your vehicle.
(If equipped)
Indicates that the pre-collisio n system is not currently
functional because the grille cover or the sensor is dirty
 Check the grille cover and the sensor and clean
them if they are dirty.
(If equipped)
Indicates a malfunction in the rear height control air sus-
pension
A buzzer also sounds.
 Immediately stop the vehicle in a safe place and
contact your Lexus dealer.
(U.S.A. only)
Indicates that all maintenance according to the driven
distance on the maintenance schedule
* should be per-
formed soon.
Comes on approximately 4500 miles (7200 km) after
the maintenance data has been reset.
 If necessary, perform maintenance.
(U.S.A. only)
Indicates that all maintenance is required to correspond
to the driven distance on the maintenance schedule*.
Comes on approximately 5000 miles (8000 km) after
the maintenance data has been reset. (The indicator will
not work properly unless th e maintenance data has been
reset.)
 Perform the necessary maintenance.
Please reset the maintenance data after the mainte-
nance is performed ( P. 4 4 1 )
Wa r n i n g m e s s a g eDetails/Actions

582
GX460_OM_OM60K80U_(U)8-2. Customization
■Automatic light control system (P. 1 9 2 )
*: If equipped
FunctionDefault settingCustomized
setting
Time elapsed before the
headlights turn off30 seconds
Off
—OO60 seconds
90 seconds
Light sensor sensitivityStandard-2 to 2—OO
Daytime running light sys-
tem (except for Canada)OnOff—OO
Automatic High Beam*OnOff——O
123

GX460_OM_OM60K80U_(U)
5858-2. Customization
8
Vehicle specifications
■Meters (P. 7 7 )
■Front automatic air conditioning system (P. 3 76 )
*: If equipped
■Driving position memory (P. 1 2 8 )
FunctionDefault settingCustomized setting
Sensitivity of the ambient
light sensor used for dim-
ming the meter lights etc.
Standard-2 to 2——O
Sensitivity of the ambient
light sensor used for bright-
ening the meter lights etc.
Standard-2 to 2——O
123
FunctionDefault settingCustomized setting
Switching between outside
air and recirculated air
mode linked to automatic
mode switch operation
*
AutoManual—OO
A/C automatic mode
switch operationAutoManual—OO
Exhaust gas sensor sensitiv-
ityStandard-3 to 3—OO
123
FunctionDefault settingCustomized setting
Driver’s seat movement
when exiting the vehicleFull
Off
—OO
Pa r t i a l
Selecting the door linking
driving position memory
with door unlock operationDriver’s doorAll doors——O
123

GX460_OM_OM60K80U_(U)
5878-2. Customization
8
Vehicle specifications
■Intuitive parking assist* (P. 2 3 4 )
*: If equipped
■In the following situations, customize mode will automatically be turned off.
●A warning message appears after the cu stomize mode screen is displayed.
●The engine switch is turned to OFF.
●The vehicle begins to move while the customize mode screen is displayed.
FunctionDefault settingCustomized
setting
Buzzer volumeLevel 5Level 1 to 5—OO
Display settingAll sensors displayedDisplay off—OO
Detection distance of the
front center sensorFarNear—OO
Detection distance of the
rear center sensorFarNear—OO
123
CAUTION
■During customization
As the engine needs to be running during customization, ensure that the vehicle is
parked in a place with adequate ventilation. In a closed area such as a garage, exhaust
gases including harmful carbon monoxide (CO) may collect and enter the vehicle. This
may lead to death or a serious health hazard.
NOTICE
■During customization
To prevent battery discharge, ensure that the engine is running while customizing fea-
tures.

606What to do if... (Troubleshooting)
GX460_OM_OM60K80U_(U)
●It is locked automatically to prevent theft of the vehicle. ( P. 1 8 3 )
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 1 4 2 )
●The auto power off function will be oper ated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( P. 1 8 3 )
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts?
( P. 5 0 9 )
●The parking brake indicator is on
Is the parking brake released? ( P. 1 9 1 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 5 0 7 , 5 1 4 )
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 6 8 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine. The steering wheel cannot be turned after the engine is stopped
The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds