warning lights Lexus GX460 2010 Scheduled Maintenance Guide / LEXUS 2010 GX460 (OM60E69U) User Guide

344
2-4. Using other driving systems
GX460_U.S.A. (OM60E69U)
■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 mess ages will turn on or flash. (P. 6 8 6 , 6 9 8 )
■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 radiatio n exposure limits set forth for an uncon-
trolled environment.
This equipment should be installed and op erated 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.

686
GX460_U.S.A. (OM60E69U)
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 in dicates a possible problem in the brake system.
Immediately stop the vehicl e in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer: 
A buzzer will sound if the vehicle is driv en 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, bu t then turns off, this does not necessar-
ily indicate a malfunction in the system.

5
When trouble arises
695
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
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 precaution s. 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.

698
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
If a warning message is displayed
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, contact your Lexus dealer.

812
Alphabetical index
GX460_U.S.A. (OM60E69U)
Conversation mirror ...........................534
Cool box...................................................528
Cooling systemEngine overheating .......................... 744
Cornering assist sensors ...................259
Crawl Control........................................323
Cruise control Cruise control ..................................... 242
Dynamic radar cruise control ..... 246
Cup holders ............................................ 522
Curtain shield airbags............................ 121
Customizable features ........................ 781
Daytime running light system .......... 224
DAC........................................................... 327
Defogger Rear window ........................................ 404
Side mirror ............................................404
Dimension ................................................750
Dinghy towing ....................................... 380
Display Dynamic radar cruise control ..... 246
Multi-information 
display ........................................ 204, 212
Trip information ........................ 204, 212
Warning message............................ 698
Do-it-yourself maintenance .............602
Door courtesy lights Door courtesy lights............................ 511
Wattage.................................................... 761
Door pocket............................................520
Doors Back door................................................. 54
Power windows..................................... 101
Door lock...........................................48, 51
Rear door child protector ................ 52 Side doors.................................................. 51
Side mirrors.............................................. 97
Downhill assist control system ........ 327
Driver’s seat belt reminder light ..... 690
Driving Correct posture..................................... 119
Off-road precautions...................... 348
Procedures.............................................168
Winter driving tips .............................. 361
Driving position memory...................... 79
Electronic key If the electronic key does not 
operate properly............................ 738
Emergency, in case of If the electronic key does not 
operate properly............................ 738
If the engine will not start ................734
If the shift lever cannot be 
shifted from P....................................736
If the vehicle has discharged 
battery ................................................... 741
If the warning buzzer sounds...... 686
If the warning light turns on.......... 686
If the warning message is 
displayed ............................................ 698
If you have a flat tire .........................720
If you lose your keys ......................... 737
If you think something is 
wrong ....................................................681
If your vehicle becomes stuck ..... 747
If your vehicle needs to be 
towed ................................................... 675
If your vehicle overheats.................744
Emergency flashers Switch .......................................................674
D
E

818
Alphabetical index
GX460_U.S.A. (OM60E69U)
Fog light switch ................................... 233
Hazard light Switch .......................... 674
Heated steering wheel switch.....549
Height control off switch................. 310
Ignition switch........................................ 179
Light switches ...................................... 220
Power door lock switch ...................... 51
Power window switch ........................ 101
“RSCA OFF” switch.......................... 138
Rear window defogger switch ................................................... 404
Transmission shift switch................. 189
Window lock switch ........................... 101
Wipers and washer switch ........... 235
Tachometer .............................................. 195
Tail lights Replacing light bulbs........................ 670
Switch ...................................................... 220
Talk switch
*............................................482
Telephones switch
*.............................482
Theft deterrent system Alarm .......................................................... 116
Engine immobilizer system ..............114
Tire inflation pressure ......................... 634
Tire information Glossary..................................................772
Size ........................................................... 768
Tire identification number ............. 767
Uniform Tire Quality Grading.... 770
Tires Chains .......................................................361
Checking ............................................... 627
If you have a flat tire .......................... 720
Inflation pressure................................ 760
Information............................................ 765 Pressure warning system ............... 627
Replacing ...............................................720
Rotating tires......................................... 627
Size ........................................................... 760
Snow tires................................................ 361
Spare tire ................................................720
Tire pressure warning

system................................................... 627
Tools........................................................... 720
Total load capacity ............................... 359
Towing Dinghy towing ....................................380
Emergency towing ........................... 675
Trailer towing ...................................... 365
TRAC ..........................................................331
Traction control.......................................331
Trailer towing ......................................... 365
Transmission shift switches................ 189
Trip information display ....................... 212
Trip meter ................................................. 195
Turn signal lights Replacing light bulbs ........... 666, 667
Switch ........................................................ 192
Wattage ................................................... 761
Vanity lights Vanity lights.......................................... 532
Wattage ................................................... 761
Vanity mirrors ........................................... 532
Vehicle identification number...........751
Vehicle load limits ................................ 359
Ventilators ................................................ 551
VSC (Vehicle Stability Control) ....330
T
V

819
Alphabetical index
GX460_U.S.A. (OM60E69U)
Warning buzzersBrake system ....................................... 705
Open door .............................. 690, 703
Open glass hatch reminder......... 704
Seat belt reminder ............................690
Warning lights Anti-lock brake system 
(ABS) .................................................. 688
Brake system .......................................686
Charging system ............................... 687
Kinetic dynamic suspension 
system..................................................689
Low fuel level.......................................690
Malfunction indicator lamp .......... 687
Master warning light ..........................691
Open door ...........................................690
PCS ......................................................... 688
Seat belt reminder light ..................690
Slip indicator light ............................. 688
SRS airbags ......................................... 688
Tire pressure warning light.............691
Warning messages Automatic transmission fluid 
temperature ...................................... 700
Automatic transmission  system.................................................. 700
Brake system ....................................... 705
Dynamic radar cruise control 
system...................................... 702, 707
Engine oil maintenance.................. 705
Engine oil pressure........................... 699
Intuitive parking assist ....................... 701
Low washer level............................... 705
Open door ........................................... 703
Open glass hatch .............................. 704 Open moon roof ...............................704
Pre-collision system............... 701, 706
Rear height control air suspension

system ................................................... 701
Smart access system with push 
button start ........................................ 709
Steering lock system ....................... 700
Warning reflector holder ................. 558
Washer Checking ...............................................626
Preparing and checking 
before winter ..................................... 361
Switch.......................................................235
Washing and waxing .......................... 588
Weight Cargo capacity .................................. 353
Load limits ............................................ 359
Weight.................................................... 750
Wheels ......................................................638
Wide view front & side monitor...... 279
Window glasses ......................................101
Window lock switch ...............................101
Windows Power windows ..................................... 101
Rear window defogger.................. 404
Washer ...................................................235
Windshield wiper de-icer..................405
Windshield wipers................................ 235
Winter driving tips ................................. 361
Wireless remote control key Locking/Unlocking .............................48
Replacing the battery.......................642
Wireless remote control key ..........48
WMA disc ............................................... 424W
*: Refer to the “Navigatio n System Owner’s Manual”.

822
What to do if...
GX460_U.S.A. (OM60E69U)
■Warning lights
P. 6 9 1
or
P. 6 8 6P. 6 8 9
P. 6 8 8
or
P. 6 8 8P. 6 9 1
P. 6 8 8P. 6 8 8
P. 6 9 0P. 6 8 9
P. 6 8 8P. 6 8 9
P. 6 9 0P. 6 8 9
P. 6 8 7P. 6 8 9
P. 6 8 9
or
P. 6 8 7P. 6 8 9
P. 6 9 0P. 6 8 9
P. 6 9 0
Brake system warning lightTire pressure warning light
Kinetic dynami c 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