headlights Lexus GX460 2012 Owner's Guide

312
2-4. Using other driving systems
GX460_U.S.A. (OM60J00U)
■Multi-terrain Monitor cameras
In the following cases, it may be difficult to see images on the screen even when the
system is functioning correctly:
●The vehicle is in a dark area, such as at night.
●The temperature near the lens is extremely high or low.
●Water droplets are on the camera lens or humidity is high, such as when it rains.
●Foreign matter, such as snow and mud, adheres to the camera lens.
●The camera has scratches or dirt on it.
●The sun or headlights are shining directly into the camera lens.
●The camera lens is damaged by flying stones.Side cameras
Front camera
Rear camera

545
3-7. Other interior features
3
Interior features
GX460_U.S.A. (OM60J00U)
■The power outlet can be used when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■The protection circuit may be activated to cut the power supply if any of the fol-
lowing conditions apply:
●Use of electrical appliances exceeding 100 W is attempted.
A sound may be heard when the protection circuit is activated. This is normal
and does not indicate a malfunction.
●The total power usage by all electrical features (headlights, air conditioning,
etc.) has exceeded the total vehicle maximum for an extended period of time.
■If the protection circuit is activated and the power supply is cut, conduct the fol-
lowing procedure:Park the vehicle in a safe place, and then securely apply the parking brake.
Make sure that the power consumption of the electric appliance is within
the maximum capacity of the power outlet and the appliance is not bro-
ken.
Turn the “ENGINE START STOP” switch to IGNITION ON mode again.
When the cabin temperature is high, open the windows to cool the temperature
down. Once it reaches the normal temperature, turn the “ENGINE START STOP”
switch to IGNITION ON mode again.
If the power supply does not resume even after the above procedure has been per-
formed, have the vehicle inspected by your Lexus dealer.
STEP1STEP1
STEP2STEP2
STEP1STEP3STEP3

652
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
23HTR50 AAir conditioning system
24WIP WSH RR30 ARear window wipers and washer
25H-LP CLN30 AHeadlight cleaner
26ST30 ASTARTER MTR
27H-LP HI25 ADIM relay, headlights, daytime run-
ning light system
28ALT-S7. 5 AALT
29TURN & HAZ15 A
Front turn signal light, rear turn signal
light, side turn signal light, meter turn
signal light
30D/ L N O.125 ADoor lock motor, glass hatch opener
31ETCS10 AEFI ECU
32FUEL PMP15 AFPC
33TOW I N G30 ATo w i n g
34ALT140 A
Air conditioning system, AIR SUS,
headlight cleaner, towing, folding seat,
STOP, rear window defogger, MIR
HTR, CDS FAN, RR FOG, DEICER,
MG-CLT, RR SEAT HTR, STRG HTR,
J/B, INV, RR WIP, RR WSH
35P/ I - B80 AInjector, ignition, meter, EFI, A/F
heater, horn
FuseAmpereCircuit

673
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
■High-intensity discharge (HID) headlights
If voltage to the high-intensity discharge bulbs is insufficient, the light may not come
on, or may go out temporarily. The high-intensity discharge bulbs will come on
when normal power is restored.
■LED light bulbs
The side turn signal lights, tail/stop lights , license plate light and high mounted stop-
light consist of a number of LEDs. If any LEDs burn out, take your vehicle to your
Lexus dealer to have the light replaced.
If two or more LEDs in a stoplight burn out, your vehicle may not conform to local
laws (SAE).
■Condensation build-up on the inside of the lens
Contact your Lexus dealer for more information in the following situations. Tempo-
rary condensation build-up on the inside of the headlight lens does not indicate a
malfunction.
●Large drops of water are built up on the inside of the lens.
●Water has built up inside the headlight.

674
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately after turn-
ing off the headlights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. Hold the bulb by
the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failing to do so may
result in heat damage, fire, or water entering the headlight unit. This may damage
the headlights or cause condensation to build up on the lens.
■High-intensity discharge (HID) headlights
●Contact your Lexus dealer before replacing high-intensity discharge headlights
(including light bulbs).
●Do not touch the high-intensity discharge headlight’s high voltage socket when
the headlights are turned on.
An extremely high voltage of 20000 V will be discharged and could result in
death or serious injury by electric shock.
●Do not attempt to repair or disassemble light bulbs, connectors, electric circuits
or component parts.
Doing so may result in serious injury due to electric shock.
■To prevent damage or fire
●Make sure bulbs are fully seated and locked.
●Check the wattage of the bulb before installing to prevent heat damage.

5
When trouble arises
735
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (
→P. 179), consider each of the following points:
■The engine will not start even when the starter motor operates
normally
One of the following may be the cause of the problem:
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 1 7 9 )
● There may be a malfunction in the engine immobilizer system.
(→ P. 115)
■ The starter motor turns over slowly, interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume
One of the following may be the cause of the problem:
● The battery may be discharged. ( →P. 74 1 )
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over
The engine starting system may be malfunctioning due to an electri-
cal problem such as an open circuit or a blown fuse. However, an
interim measure is available to start the engine. ( →P. 7 3 9 )

736
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
Emergency start function
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the “ENGINE START STOP” switch
is functioning normally:Set the parking brake.
Shift the shift lever to P.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Press and hold the “ENGINE START STOP” switch for about 15
seconds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system may
be malfunctioning. Have the vehicle inspected by your Lexus dealer.
■ The starter motor does not turn ov er, interior lights and headlights
do not turn on, or the horn does not sound
One of the following may be the cause of the problem:
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( →P. 74 1 )
● There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4

742
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and the draining effects of certain electrical
appliances. If the vehicle is left for a long time, the battery may discharge, and the
engine may be unable to start. (The battery recharges automatically during driving.)
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Open and close any of the doors of your vehicle with the
“ENGINE START STOP” switch off.
Maintain the engine speed of the second vehicle and start the
engine of your vehicle by turning the “ENGINE START STOP”
switch to IGNI TION ON mode.
Once your vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Lexus dealer
as soon as possible.STEP3
STEP4
STEP5
STEP6

763
6-1. Specifications
6
Vehicle specifications
GX460_U.S.A. (OM60J00U)
Light bulbs
A: HB3 halogen bulbsB: D4S discharge bulbs
C: H11 halogen bulbs D: Wedge base bulb (amber)
E: Wedge base bulb (clear)
*:If equipped
Light bulbsBulb No.WTy p e
Exterior
Headlights
High beam
Low beam (discharge bulbs
*)
Low beam (halogen bulbs
*)
9005 
6035
55A B
C
Front turn signal lights21D
Parking/front side marker
lights5E
Front fog lights55C
Rear turn signal lights21D
Back-up lights92116E
Rear side marker lights5E
Running board lights5E
Interior
Personal/Interior lights Front
Rear

5
5E
E
Vanity lights8E
Door courtesy lights5E

790
6-2. Customization
GX460_U.S.A. (OM60J00U)
Wi re le ss
remote
control
(
→P. 4 7 )
REMOTE
2-PRESS
UNLOCK
(Allows all
doors to be
unlocked by
pressing
on the elec-
tronic key once)
Driver’s
door
unlocked in
first step, all
doors
unlocked in
second step
All doors
unlocked in
first step
O–OO
Pa n i c f u n c t i o n OnOff–––O
Automatic
light con-
trol system
(
→P. 2 1 9 )
HEADLIGHT
OFF TIME
ADJUSTMENT
(Adjust the time
elapsed before
the headlights
automatically
turn off)
30 seconds
Off
O–OO60 seconds
90 seconds
ItemFunctionDefault settingCustomized setting