warning lights Lexus GX460 2012 User Guide

277
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60J00U)
■When the vehicle has been parked in the sun
The LDA system may not be available for a while after driving has started. In such
cases, turn the LDA system off and turn it on again after normal temperature
returns. When the temperature in the cabin decreases and the temperature around
the camera sensor becomes suitable for its operation, the functions will begin to
operate.
■Warning lights and messages for LDA
Warning lights and messages are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. (→P. 700)
CAUTION
■Before using the LDA system
This system provides information to the driver in accordance with the road geome-
try and the driving conditions. Be aware of your surroundings at all times, correct
the driving path while driving appropriately and be responsible for your own safety.
This system operates by using the camera to identify lane markers when the LDA
switch is on and the vehicle is being driven at the system operating speed.
Operation may be temporarily suspended if the camera cannot recognize the lane
markers or if the system cannot operate due to the road environment or driving
conditions. Also, since an alarm may sound unnecessarily if the lane markers cannot
be correctly identified, make sure to drive responsibly even while the system is
operating.
If a malfunction occurs in the system, the driver will be alerted by a buzzer and a dis-
play, and LDA operation will be temporarily suspended. However, this does not
present a problem to normal driving.
If the alert is displayed even after restarting the engine, have your vehicle inspected
by your Lexus dealer.

348
2-4. Using other driving systems
GX460_U.S.A. (OM60J00U)
■Obstacles not detected
The system cannot detect plastic obstacles such as pylons. There may also be occa-
sions when the system cannot detect pedestrians, animals, bicycles, motorcycles,
trees, or snowdrifts.
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. (→P. 688, 700)
■Certification
For vehicles sold in the U.S.A.
FCC ID: HYQDNMWR004
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Radio frequency radiation exposure Information:
This equipment complies with FCC radiation exposure limits set forth for an uncon-
trolled environment.
This equipment should be installed and operated with minimum distance of 20 cm
between the radiator (antenna) and your body.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
For vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.

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
697
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The
vehicle will become extremely unstable during braking, and the ABS system may
fail, which could cause an accident resulting in death or serious injury.
■When the power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If the tire is flat,
change to the spare tire and have the flat tire repaired by the nearest Lexus
dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

700
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
If a warning message is displayed
Stop the vehicle immediately.
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. 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.
Wa r n i n g m e s s a g eDetails
Indicates abnormal engine oil pressure The warning light may come on if the engine oil pres-
sure is too low.
If a warning is shown on the instrument cluster, stay calm and perform the
following actions:
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
instrument cluster.
Multi-information display
Rear height control air sus-
pension display
If any of the warning lights comes on again after the following actions
have been performed, co ntact your Lexus dealer.

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

829
Alphabetical index
GX460_U.S.A. (OM60J00U)
Switch“ENGINE START STOP”
switch ..................................................... 179
Engine switch ........................................ 179
“2nd STRT” switch ............................. 188
Center differential lock/unlock
switch ................................................... 323
“DAC” switch ...................................... 332
Emergency flasher Switch ............ 676
Fog light switch................................... 233
Hazard light Switch .......................... 676
Heated steering wheel switch .... 549
Height control off switch .................316
Ignition switch........................................ 179
Light switches........................................ 219
Power door lock switch.................... 50
Power window switch........................ 101
“RSCA OFF” switch .......................... 137
Rear window defogger switch
*.................................................... 411
Transmission shift switch .................189
Window lock switch ........................... 101
Wipers and washer switch........... 236
Tachometer .............................................. 195
Tail lights Replacing light bulbs ........................672
Switch ........................................................ 219
Talk switch
*............................................ 490
Telephones switch
*............................ 490
Theft deterrent system Alarm ........................................................... 117
Engine immobilizer system ..............115 Tire inflation pressure .........................635
Tire information
Glossary ................................................. 774
Size............................................................770
Tire identification number..............769
Uniform Tire Quality Grading .... 772
Tires Chains .................................................... 366
Checking .............................................. 628
If you have a flat tire ............................ 721
Inflation pressure................................ 762
Information ........................................... 768
Pressure warning system.............. 628
Replacing ................................................. 721
Rotating tires ....................................... 628
Size............................................................ 762
Snow tires ............................................. 366
Spare tire .................................................. 721
Tire pressure warning system ................................................. 628
Tools .............................................................721
Total load capacity ............................... 364
Towing Dinghy towing .................................... 389
Emergency towing............................ 677
Trailer towing .......................................370
T
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

830
Alphabetical index
GX460_U.S.A. (OM60J00U)
TRAC.........................................................336
Traction control .....................................336
Trailer towing..........................................370
Transmission shift switches ................ 189
Trip information display....................... 212
Trip meter ................................................. 195
Turn signal lightsReplacing light bulbs........... 668, 669
Switch ........................................................ 192
Wattage.................................................. 763
Vanity lights Vanity lights ..........................................539
Wattage.................................................. 763
Vanity mirrors ............................................539
Vehicle identification number ......... 753
Vehicle load limits ................................364
Ventilators ................................................ 551
VSC (Vehicle Stability Control).....335
Warning buzzers Brake system ....................................... 706
Open door ...............................692, 704
Open glass hatch reminder .........705
Seat belt reminder............................. 692
Third power seat.................................... 72 Warning lights
Anti-lock brake system
(ABS) ................................................... 690
Brake system.......................................688
Charging system ............................... 689
Kinetic dynamic suspension
system.................................................... 691
Low fuel level....................................... 692
Malfunction indicator lamp ..........689
Master warning light........................ 693
Open door ........................................... 692
PCS .......................................................... 690
Seat belt reminder light .................. 692
Slip indicator light..............................690
SRS airbags.......................................... 690
Tire pressure warning light .......... 693
Warning messages Automatic transmission fluid
temperature........................................ 701
Automatic transmission
system.................................................... 701
Brake system....................................... 706
Dynamic radar cruise control system...................................... 703, 708
Engine oil maintenance.................. 706
Engine oil pressure........................... 700
Intuitive parking assist ......................702
Low washer level .............................. 706
Open door ........................................... 704
Open glass hatch.............................. 705
Open moon roof............................... 705
Pre-collision system..............702, 707
V
W

834
What to do if...
GX460_U.S.A. (OM60J00U)
■Warning lights
P. 6 9 3
or
P. 6 8 8P. 6 9 1
P. 6 9 0
or
P. 6 9 0P. 6 9 3
P. 6 9 0P. 6 9 1
P. 692P. 6 9 1
P. 6 9 0P. 6 9 1
P. 692P. 6 9 1
P. 6 8 9P. 6 9 1
P. 6 9 1
or
P. 6 8 9P. 6 9 1
P. 692P. 6 9 1
P. 692
Brake system warning lightTire pressure warning light
Kinetic dynamic suspension
system warning light
ABS warning light“PCS” warning light
Master warning light
Slip indicator light“AFS OFF” indicator light
Low fuel level warning lightAutomatic High Beam
indicator light
SRS warning light“LDA” indicator light
Open door warning lightCruise control indicator
light
Charging system warning
lightRadar cruise control
indicator light
Malfunction indicator lampMulti-terrain Select
indicator light
Low speed four-wheel drive
indicator light
Driver’s seat belt reminder
lightCenter differential lock
indicator light
Front passenger’s seat belt
reminder light