cruise control Lexus GX460 2010 Operating Other Driving Systems / LEXUS 2010 GX460 (OM60E69U) Owner's Manual

259
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60E69U)
CAUTION
■Handling the radar sensor
Observe the following to ensure the cruise control system can function effectively. 
Otherwise, the system may not function correctly and could result in an accident.
●Keep the sensor and front grille cover clean at all times. 
Clean the sensor and front grille cover with a soft cloth so you do not mark or
damage them.
●Do not subject the sensor or surrounding area to a strong impact. 
If the sensor moves even slightly off position, the system may malfunction. If the
sensor or surrounding area is subject to a strong impact, always have the area
inspected and adjusted by a Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or surrounding
area.
●Do not modify or paint the sensor and grille cover.
●Do not replace them with non-genuine parts.

375
2-5. Driving information
2
When driving
GX460_U.S.A. (OM60E69U)
CAUTION
■To avoid accident or injury
●Do not use cruise control when you are towing.
●Slow down and downshift before descending steep or long downhill grades. Do
not make sudden downshifts.
●Avoid holding the brake pedal down too long or applying the brakes too fre-
quently.
This could cause the brakes to overheat and result in reduced braking efficiency.
■Hitches
●If you wish to install a trailer hitch, contact your Lexus dealer.
●Use only a hitch that conforms to the total trailer weight requirement.
●Follow the directions supplied by the hitch manufacturer.
●Lubricate the hitch ball with a light coat of grease.
●Remove the trailer hitch whenever you are not towing a trailer. After removing
the hitch, seal any mounting hole in the vehicle body to prevent entry of any sub-
stances into the vehicle.
■When towing a trailer
●If the total trailer weight exceeds 1000 lb . (453 kg), trailer brakes are required.
●Never tap into your vehicle’s hydraulic system, as this will lower the vehicle’s brak-
ing effectiveness.
●Never tow a trailer without using a safety chain securely attached to both the
trailer and the vehicle. If damage occurs to the coupling unit or hitch ball, there is
a risk of the trailer wandering into another lane.

5
When trouble arises
689
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
*: 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 )

702
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
(Flashes)or
(Flashes)
(If equipped)
Indicates a malfunction in the radar cruise control
system Stop the vehicle in a safe place. Turn the “ENGINE
START STOP” switch off and then turn it to IGNI-
TION ON mode again to re set the cruise control sys-
tem.
(Flashes)
(If equipped)
Indicates a malfunction in the LDA system Stop the vehicle in a safe place. Turn the “ENGINE
START STOP” switch off and then turn it to IGNI-
TION ON mode again to reset the LDA system.
Wa r n i n g m e s s a g eDetails

5
When trouble arises
707
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
(Flashes)
(If equipped)
Indicates that the radar
cruise control sensor is
dirty or covered with ice A buzzer also sounds.
Clean the sensor.
(Flashes)
(If equipped)
Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance A buzzer also sounds.If the windshield wipers
are on, turn them off or set
them to a mode other than
“A U T O ” o r h i g h s p e e d
wiper operation.
(Flashes)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in radar cruise
mode)
Slow the vehicle by apply-
ing the brakes.
Wa r n i n g m e s s a g eDetailsCorrection procedure

5
When trouble arises
719
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
Other messagesIf the following message is displayed, take appropriate action and confirm
that the message has disappeared. ( P. 323)
MessageCorrection procedure
(If equipped)
Select the four-wheel driving position switch in L4
and shift the shift lever to D or R.
(If equipped)
Confirm the operating conditions.
■Warning light display in radar cruise mode (if equipped)
In the following cases, the warning light may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. ( P. 6 1 3 )

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

816
Alphabetical index
GX460_U.S.A. (OM60E69U)
Parking assist sensors .........................259
Parking brake .......................................... 193
Parking lightsReplacing light bulbs........................665
Switch ...................................................... 220
Wattage.................................................... 761
PCS ........................................................... 338
Personal lights Personal lights ........................................ 511
Switch ........................................................513
Wattage.................................................... 761
Power steering Fluid ..........................................................620
Power outlet.....................535, 537, 542
Power windows ........................................101
Pre-Collision System ......................... 338
Radar cruise control ............................ 246
Radiator ......................................................617
Radio ......................................................... 408
RDS (Radio Date System) ................. 410
Rear height control 
air suspension ...................................... 310
Rear seat Adjustment............................................... 68
Folding down the second 
seatbacks ....................................... 70, 71
Folding down the third seats ...........73
Rear side marker lights Replacing light bulbs........................ 667
Wattage.................................................... 761
Rear step bumper....................................55
Rear turn signal lights Replacing light bulbs........................ 667
Wattage.................................................... 761 Rear view mirror
Compass ............................................... 575
Rear view monitor system .................274
Rear window defogger ...................... 404
Rear window wiper and washer ..... 239
Replacing Electronic key battery ......................642
Fuses ........................................................ 645
Light bulbs ............................................ 660
Tires...........................................................720
Reporting safety defects for 
U.S. owners..........................................804
Scuff lighting .............................................. 511
Seat belts Adjusting the seat belt ........................87
Automatic Locking Retractor ........ 88
Child restraint system 
installation ............................................ 152
Cleaning and maintaining 
the seat belts .................................... 593
Emergency Locking 
Retractor ............................................... 88
How to wear your seat belt ............ 86
How your child should wear 
the seat belt.......................................... 89
Pre-collision seat belts....................... 88
Pregnant women, 
proper seat belt use ........................ 89
Reminder light..................................... 690
Seat belt extenders.............................. 90
Seat belt pretensioners ....................... 91
Seat heaters ............................................. 551
Seat position memory............................ 79
Seat ventilator ......................................... 551
Seating capacity.................................... 359P
R
S

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