2012 Lexus GX460 light

When trouble arises5
675
GX460_U.S.A. (OM60J00U)
5-1. Essential informationEmergency flashers................ 676
If your vehicle needs to be towed ............................ 677
If you think something is wrong ..................................... 683
Fuel pump shut off system.... 684
Event data recorder .............. 685 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds..................................... 688
If a warning message is displayed................................ 700
If you have a flat tire................. 721
If the engine will not start .... 735
If the shift lever cannot be shifted from P ........................ 737
If you lose your keys .............. 738
If the electronic key does not operate properly.......... 739
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

676
GX460_U.S.A. (OM60J00U)
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.

688
GX460_U.S.A. (OM60J00U)
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.

5
When trouble arises
689
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
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.

690
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
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 indicator will blink when the system listed above or
below is operational. (→ P. 3 3 7 )
• The downhill assist control system
*;
• The hill-start assist control system
*; or
• Crawl Control system*.
(Flashing)
“PCS” warning light*
Indicates a malfunction in the pre-collision system.
The warning light will operate as follows, even when the sys-
tem is not malfunctioning:
• The light will flash quickly when the system is operating.
(→ P. 3 4 3 )
• The light will turn on when the pre-crash braking is dis- abled. ( →P. 3 4 4 )
• The light will turn on when the system cannot temporarily be used. ( →P. 7 0 7 )

5
When trouble arises
691
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
*: If equipped
Warning lightWarning light/Details
(Flashing)
“AFS OFF” indicator light*
Indicates a malfunction in the AFS (Adaptive Front-lighting
System). ( →P. 223)
(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 7 5 )
(Flashing)
Cruise control indicator light*
Indicates a malfunction in the cruise control system.
(→ P. 2 4 6 , 2 5 0 )
(Flashing)
Radar cruise control indicator light*
Indicates a malfunction in the Dynamic radar cruise control
system. ( →P. 2 5 0 )
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 6 )
Low speed four-wheel drive indicator light
Indicates a malfunction in the four-wheel drive system if the
light continues flashing. ( →P. 3 2 2 )
Center differential lock indicator light
Indicates a malfunction in the four-wheel drive system if the
light continues flashing. ( →P. 3 2 2 )

692
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
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.

5
When trouble arises
693
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
*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 4 )
*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. 7 0 0
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.