light Lexus GX460 2010 Owner's Manual

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4-3. Do-it-yourself maintenance
GX460_CANADA (OM60F29U)
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.
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When trouble arises5
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5-1. Essential informationEmergency flashers................ 674
If your vehicle needs to be towed ............................ 675
If you think something is wrong ....................................... 681
Fuel pump shut off system ..................................... 682
Event data recorder ............. 683 5-2. Steps to take in
an emergency
If a warning light turns on or a warning buzzer
sounds... ................................. 686
If a warning message is displayed................................ 698
If you have a flat tire............... 720
If the engine will not start .... 734
If the shift lever cannot be shifted from P ....................... 736
If you lose your keys ............... 737
If the electronic key does not operate properly.......... 738
If the vehicle battery is discharged .............................. 741
If your vehicle overheats ...... 744
If the vehicle becomes stuck......................................... 747
If your vehicle has to be stopped in an
emergency ............................. 749
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5-1. Essential information
Emergency flashers
NOTICE
■To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the engine is
not running.
Use the emergency flashers if the vehicle malfunctions or is involved in an
accident.
Press the switch to flash all the
turn signal lights. To turn them
off, push the switch once again.
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5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be
dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer: A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph (5
km/h) or more.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Brake system warning light (warning buzzer)*
•Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released, the system is operating normally.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, but then turns off, this does not necessar-
ily indicate a malfunction in the system.
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When trouble arises
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5-2. Steps to take in an emergency
GX460_CANADA (OM60F29U)
Stop the vehicle immediately.The following warning indicates the possibility of damage to the vehicle
that may lead to an accident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
Have the vehicle inspected by yo ur Lexus dealer immediately.
Failing to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging system
while the engine is running.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Malfunction indicator lampMalfunction in:
• The emission control system;
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.
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5-2. Steps to take in an emergency
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Warning lightWarning light/Details
SRS warning lightMalfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system.
(U.S.A.)

(Canada)
ABS warning lightMalfunction in:
•The ABS; or
• The brake assist system.
Slip indicator light
Malfunction in:
•The VSC;
• The active traction control system;
• The downhill assist control system
*;
• The hill-start assist control system
*; or
• Crawl Control system*.
The indicator will blink when the system listed above is
operational. ( →P. 3 3 2 )
(Flashing)
“PCS” warning light*
Indicates a malfunction in the pre-collision system.
(→ P. 3 3 8 )
(Flashing)
“AFS OFF” indicator light*
Indicates a malfunction in the AFS (Adaptive Front-lighting
System). (→ P. 223)
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5-2. Steps to take in an emergency
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*: If equipped
Warning lightWarning light/Details
(Flashing)
Automatic High Beam indicator light*
Indicates a malfunction in the automatic high beam system.
(→ P. 2 2 6 )
(Flashing)
“LDA” indicator light*
Indicates a malfunction in the lane departure alert.
(→ P. 2 6 8 )
(Flashing)
Cruise control indicator light*
Indicates a malfunction in the cruise control system.
(→ P. 242, 246)
(Flashing)
Radar cruise control indicator light*
Indicates a malfunction in the Dynamic radar cruise control
system. ( →P. 2 4 6 )
Kinetic dynamic suspension system warning light
Malfunction in the kinetic dynamic suspension system.
(Flashing)
Multi-terrain Select indicator light*
Indicates a malfunction in the Multi-terrain Select system.
(→ P. 2 9 0 )
Low speed four-wheel drive indicator light
Indicates a malfunction in the four-wheel drive system if the
light continues flashing. ( →P. 3 1 7 )
Center differential lock indicator light
Indicates a malfunction in the four-wheel drive system if the
light continues flashing. ( →P. 3 1 7 )
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5-2. Steps to take in an emergency
GX460_CANADA (OM60F29U)
Have the malfunction repaired immediately.After taking the specified steps to correct the suspected problem, check
that the warning light turns off.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
A door or a back door is not
fully closed.
Check that all doors and the
back door are closed.
Low fuel level warning light Remaining fuel
(Approximately 3.4 gal. [13.0
L, 2.8 Imp.gal.] or less)
Refuel the vehicle.
(On the instru-
ment panel)
Driver’s seat belt reminder
light (warning buzzer)
*2
Warns the driver to fasten
his/her seat belt.Fasten the seat belt.
(On the center panel)
Front passenger’s seat belt
reminder light (warning
buzzer)
*2
Warns the front passenger to
fasten his/her seat belt.
Fasten the seat belt.
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5-2. Steps to take in an emergency
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*1: Open door warning buzzer:
The open door warning buzzer sounds to alert one or more of the doors is not
fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).
( → P. 7 0 3 )
*2: Driver’s and front passenger’s seat belt reminder buzzer:
The driver’s and front passenger’s seat belts reminder buzzer sounds to alert
the driver and front passenger that his/her seat belt is not fastened. Once the
“ENGINE START STOP” switch is turned to IGNITION ON mode, the buzzer
sounds for 4 to 8 seconds. If the vehicle reaches a speed of 12 mph (20 km/h),
the buzzer sounds intermittently for 10 seconds. Then, if the seat belt is still
unfastened, the buzzer will sound in a different tone for 20 more seconds.
Warning lightWarning light/DetailsCorrection procedure
Master warning light
A buzzer sounds and the
warning light comes on and
flashes to indicate that the
master warning system has
detected a malfunction.
→ P. 6 9 8
Tire pressure warning light
When the light comes on:
Low tire inflation pressure.Adjust the tire inflation pres-
sure.
When the light comes on after
blinking for 1 minute:
Malfunction in the tire pres-
sure warning system.
Have the system checked by
your Lexus dealer.
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692
5-2. Steps to take in an emergency
GX460_CANADA (OM60F29U)
■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, “AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front pas-
senger’s seat belt buckle switch, seat belt pretensioner assemblies, inflators, inter-
connecting wiring and power sources. (→P. 1 2 1 )
■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.
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