sensor Lexus GX460 2012 Workshop Manual

686
5-1. Essential information
GX460_U.S.A. (OM60J00U)
In a crash or a near car crash eventThe 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 infor-
mation:
● Engine speed
● Whether the brake pedal was applied or not
● Ve h i c l e s p e e d
● To what extent the accelerator pedal was depressed
● Position of the transmission shift lever
● Whether the driver and front passenger wore seat belts or not
● SRS airbag deployment data
● SRS airbag system diagnostic data
● Front passenger’s occupant classification
● Whether the “RSCA OFF” indicator was turned on or off
The information above is intended to be used for the purpose of improv-
ing vehicle safety performance. Unlike general data recorders, the EDR
does not record sound data such as conversation between passengers.

694
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
■SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag sensors,
side and curtain shield airbag sensors, rear side and curtain shield airbag sensors,
floor sensor, driver’s seat belt buckle switch, front passenger occupant classification
system (ECU and sensors), “AIR BAG ON” indicator light, “AIR BAG OFF” indica-
tor light, the “RSCA OFF” indicator light, front passenger’s seat belt buckle switch,
seat belt pretensioner assemblies, inflators, interconnecting wiring and power
sources. (→P. 122)
■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.
■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.

702
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
(If equipped)
Indicates a malfunction in the rear height control air
suspension system
(Flashes)
(If equipped)Indicates a malfunction in the pre-collision system
(If equipped)
Indicates a malfunction in the intuitive parking assist The malfunctioning assist-sensor is flashing.
Wa r n i n g m e s s a g eDetails

5
When trouble arises
707
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
(U.S.A. only)
Indicates that the engine
oil and oil filter should be
changedHave the engine oil and oil
filter checked and
changed by your Lexus
dealer.
(Turns on)
(If equipped)
Indicates that the pre-
collision system is not
currently functional
Clean the grille and the
sensor. This message appears
when the pre-collision
system is hot. In this case,
wait until the system
cools down.
(If equipped)
Indicates that intuitive
parking assist is dirty or
covered with iceA buzzer also sounds.
Clean the sensor.
Wa r n i n g m e s s a g eDetailsCorrection procedure

708
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
(Flashes)
(If equipped)
Indicates that the radar
cruise control sensor is
dirty or covered with ice A buzzer also sounds.
Clean the sensor.
(Flashes)
(If equipped)
Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance A buzzer also sounds.If the windshield wipers
are on, turn them off or set
them to a mode other than
“AUTO” or high speed
wiper operation.
(Flashes)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in radar cruise
mode)
Slow the vehicle by apply-
ing the brakes.
Wa r n i n g m e s s a g eDetailsCorrection procedure

5
When trouble arises
709
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
(Flashes)
(If equipped)
Indicates that there is a
high possibility of a colli-
sion, or that the pre-crash
brake function is operat-
ing
Slow the vehicle by apply-
ing the brakes.
(If equipped)
Indicates that the LDA is
suspended The camera sensor tem-
perature is higher than
the operation tempera-
ture range.
Reactivate the lane depar-
ture alert system.
(If equipped)
Alerts the driver that the
vehicle may deviate from
its lane (while the LDA
system is operating).The lane markings flash.
Check the road condi-
tions and correct the driv-
ing path appropriately.
Wa r n i n g m e s s a g eDetailsCorrection procedure

791
6-2. Customization
6
Vehicle specifications
GX460_U.S.A. (OM60J00U)
Automatic
light con-
trol system
(
→P. 2 1 9 )
LIGHT SEN-
SOR SENSI-
TIVITY
(Adjust the sen-
sitivity of the
ambient light
sensor)
Standard-2 to 2O–OO
DAYTIME
RUNNING
LIGHTS
(Daytime run-
ning lights can
be disabled)
*2
OnOffO–OO
Automatic high
beam system
*3OnOff–––O
Ti m e e l a p s e d
before head-
lights automati-
cally turn on or
off (When the
headlight switch
is in “AUTO”
position)
StandardLong–––O
ItemFunctionDefault settingCustomized setting

795
6-2. Customization
6
Vehicle specifications
GX460_U.S.A. (OM60J00U)
Instrument
cluster
(
→P. 1 9 6 )
Instrument Dim.
Sensitivity
(Adjust the sen-
sitivity of the
ambient light
sensor used for
dimming the
instrument clus-
ter glass etc.)
Standard-2 to 2O––O
Instrument Rest.
Sensitivity
(Adjust the sen-
sitivity of the
ambient light
sensor used for
restoring the
brightness of
the instrument
cluster glass
etc.)
Standard-2 to 2O––O
ItemFunctionDefault settingCustomized setting

797
6-2. Customization
6
Vehicle specifications
GX460_U.S.A. (OM60J00U)
Front auto-
matic air
condition-
ing sys-
tem
*1,2
Smog Sensor
Sensitivity
(Adjust the sen-
sitivity of
exhaust gas
sensor used for
the Efficient
Ventilation
Mode)
Standard-3 to 3O––O
Front seats
(
→P. 63)
DRIVER’S
SEAT EASY
EXIT
(The distance
the driver’s seat
moves back-
ward when exit-
ing the vehicle
can be
selected)
Full
Off
O–OO
Pa r t i a l
ItemFunctionDefault settingCustomized setting

822
Alphabetical index
GX460_U.S.A. (OM60J00U)
Child-protectors ....................................... 51
CleaningExterior .................................................. 588
Interior .....................................................593
Seat belts................................................594
Clock
*..................................................... 540
Coat hooks ............................................. 555
Coin holder .............................................528
Compass .................................................. 575
Condenser ............................................... 618
Console box ...........................................526
Conversation mirror ............................ 541
Cool box...................................................535
Cooling system Engine overheating .......................... 744
Cornering assist sensors ................... 266
Crawl Control........................................328
Cruise control
Cruise control ..................................... 246
Dynamic radar cruise control .....250
Cup holders ........................................... 530
Curtain shield airbags.......................... 122
Customizable features .......................782
Daytime running light system .......... 224
DAC...........................................................332
Defogger Rear window............................................411
Side mirror ................................................411
Dimension ................................................ 752
Dinghy towing ....................................... 389 Display
Dynamic radar cruise control..... 250
Multi-information display........................................ 204, 212
Trip information........................ 204, 212
Warning message ............................ 700
Do-it-yourself maintenance ............. 603
Door courtesy lights Door courtesy lights .......................... 519
Wattage ..................................................763
Door pocket ........................................... 529
Doors Back door .................................................53
Power windows .....................................101
Door lock .........................................47, 50
Rear door child protector.................. 51
Side doors................................................ 50
Side mirrors.............................................. 97
Downhill assist control system ........ 332
Driver’s seat belt reminder light ..... 692
Driving Correct posture................................... 120
Off-road precautions...................... 353
Procedures............................................. 168
Winter driving tips ............................ 366
Driving position memory...................... 78
D