differential Lexus GX460 2020 / LEXUS 2020 GX460 (OM60R27U) User Guide

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
■When the four-wheel drive control switch can be operated
●The engine switch is in IGNITION ON mode.
●The shift lever is in the N position.
●The vehicle is stopped completely.
■The low speed four-wheel drive indicator
●The indicator blinks while sw
itching between H4 and L4.
●If the low speed four-wheel drive indicator continues to blink when you operate the
four-wheel drive control switch to the H4 or L4 position, stop the vehicle completely,
shift the shift lever securely into N and then operate the switch again.
●If the shift lever is moved before the low speed four-wheel drive indicator turns on/off,
the transfer mode may not be shifted completely. The transfer mode disengages both
the front and rear drive shafts from the powertrain and allows the vehicle to move
regardless of the shift position. (At this time , the indicator blinks and the buzzer sounds.)
Therefore, the vehicle is free to roll even if the shift lever is in P. You or someone else
could be seriously injured. You must comple te the shifting of the transfer mode and
confirm that the indicator has turned off (H4) or turned on (L4).
●If the engine coolant temperature is too low, the four-wheel drive control system may
not be able to shift. When the engine is warmer operate the switch again.
If the indicator continue to blink even if doing so, have the vehicle inspected by your
Lexus dealer as soon as possible. There may be a trouble in the four-wheel drive system.
■When the transfer mode is switched to L4
VSC is automatically turned off. (T he VSC OFF indicator will come on.)
■When the center differential lock/unlock switch can be operated
The engine switch is in IGNITION ON mode.
■The center differential lock indicator
●The indicator blinks while locking/unlocking the center differential.
●If the center differential lock indicator b links and the buzzer sounds when the center
differential is locked, stop the slipping or spinning and push the switch again.
If the indicator continue to blink even if doing so, have the vehicle inspected by your
Lexus dealer as soon as possible. There may be a trouble in the four-wheel drive system.

GX460_OM_OM60R27U_(U)
3434-5. Using the driving support systems
4
Driving
■Locking/unlocking the center differential
●If the operation is not completed, the center di fferential lock indicator blinks. If the indi-
cator does not turn off when unlocking the center differential, drive straight ahead
while accelerating or decelera ting, or drive in reverse.
●Avoid turning suddenly while the center differ ential is locked. If you do turn suddenly,
the difference in turning speeds between the front and rear wheels may have a similar
effect to braking, thus making driving difficult.
WARNING
■While driving
Observe the following precautions. Failure to do so may cause an accident resulting in
death or serious injury.
●Never move the four-wheel drive control switch if the wheels have lost traction.
●Do not operate the center differential lock/unlock when the vehicle is turning or
when its wheels are spinning freely off the ground.
NOTICE
■To prevent damage to the center differential
●For normal driving on dry and hard surface roads, unlock the center differential.
●Unlock the center differential after the wheels are out of the ditch or off the slippery
or bumpy surface.

374
GX460_OM_OM60R27U_(U)4-6. Driving tips
NOTICE
■To prevent the water damage
Take all necessary safety measures to ensure that water damage to the engine or other
components does not occur.
●Water entering the engine air intake
will cause severe engine damage.
●Water entering the automatic transmission will cause deterioration in shift quality,
locking up of your transmission accompanied by vibration, and ultimately damage.
●Water can wash the grease from wheel be arings, causing rusting and premature fail-
ure, and may also enter the differentials, tr ansmission and transfer case, reducing the
gear oil’s lubricating qualities.
■When you drive through water
If driving through water, such as when cro ssing shallow streams, first check the depth of
the water and the bottom of the riverbed for firmness. Drive slowly and avoid deep
water.
■Inspection after off-road driving
●Sand and mud that has accumulated in brake drums and around brake discs may
affect braking efficiency and may damage brake system components.
●Always perform a maintenance inspection afte r each day of off-road driving that has
taken you through rough terrain, sand, mud, or water. For scheduled maintenance
information, refer to the “Warranty and Se rvices Guide”, “Owner’s Manual Supple-
ment” or “Scheduled Maintenance”.

5067-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
Securely attach an elastic towing
rope to the towing hooks.
Take care not to damage the vehicle
body.
Enter the vehicle being towed and start the engine.
If the engine does not start, turn the engine switch to IGNITION ON mode.
Set the four-wheel drive control switch in H4 and push the center differential
lock/unlock switch to unlock the center differential. (P. 340)
For models with the rear height cont rol air suspension: Change the vehicle
height to N (normal) mode and end th e vehicle height control operation.
( P. 335)
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: P. 205
■While towing
If the engine is not running, the power assist for the brakes and steering will not function,
making steering and br aking more difficult.
Emergency towing procedure
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5137-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
7
When trouble arises
(Flashes)
Low speed four-wheel drive indicator light Indicates a malfunction in the four -wheel drive system if the light
continues flashing. ( P. 340)
 Have the vehicle inspected by your Lexus dealer immediately.
(Flashes)
Center differential lock indicator light
Indicates a malfunction in the four -wheel drive system if the light
continues flashing. ( P. 340)
 Have the vehicle inspected by your Lexus dealer immediately.
Open door warning light (warning buzzer)*2
Indicates that a hood, door or th e glass hatch is not fully closed
 Check that all the doors and the glass hatch are closed.
Low fuel level warning light
Indicates that remaining fuel is a pproximately 3.5 gal. (13.1 L, 2.9
Imp. gal.) or less
 Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)
*3
Warns the driver and/or front passenger to fasten their seat belts
 Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) turn off.
Tire pressure warning light
Indicates that:
•Flat tire
• Natural causes
• The tire pressure warnin g system is malfunctioning
 Immediately stop the vehicle in a safe place.
Handling method( P. 516)
Warning lightWarning light/Details/Actions

5167-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
■If the low speed four-wheel drive indicator light or the center differential lock indicator
light blinks
Take the specified steps. ( P. 342)
■When the tire pressure warning light comes on
Inspect the tires to check if a tire is punctured.
If a tire is punctured:  P. 524
If none of the tires are punctured:
Turn the engine switch off then turn it to IGNITION ON mode. Check if the tire pressure
warning light comes on or flashes.
If the tire pressure warning light comes on
After the temperature of the tires has lowere d sufficiently, check the inflation pressure
of each tire and adjust th em to the specified level.
If the warning light does not turn off even after several minutes have elapsed, check
that the inflation pressure of each tire is at the specified level and perform initialization.
(  P. 466)
If the warning light does not turn off even after several minutes have elapsed, have the
vehicle inspected by your Lexus dealer immediately.
If the tire pressure wa rning light flashes for 1 minute then stay on
There may be a malfunction in the tire pressure warning system. Have the vehicle
inspected by your Lexus dealer immediately.
■The tire pressure warning light may turn on due to natural causes
The tire pressure warning light may turn on du e to natural causes such as natural air leaks
or tire inflation pressure changes caused by temperature. In this case, adjusting the tire
inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with a spare tire
The tire pressure warning light wi ll turn on if the tire inflation pressure of the spare tire is
low. If a tire goes flat, the tire pressure warn ing light will not turn off even though the flat
tire has been replaced with the spare tire.
■Conditions that the tire pressure wa rning system may not function properly
 P. 470
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mo de, have it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features: P. 576)
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GX460_OM_OM60R27U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If the vehicle becomes stuck
Stop the engine. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the stuck tire.
Place wood, stones or some other mate rial under the tires to help provide
traction.
Restart the engine.
Lock the center differential. ( P. 341)
Shift the shift lever to the D or R positi on and release the parking brake. Then,
while exercising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
Turn off TRAC/Active TRAC/VSC/Trailer Sway Control if these functions are hamper-
ing your attempts to free the vehicle. ( P. 353)
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt, or snow:
Press to turn off TRAC/Active TRAC/VSC/
Trailer Sway Control.
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GX460_OM_OM60R27U_(U)
5578-1. Specifications
8
Vehicle specifications
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory.Use Lexus approved “Toyota Genuine Differ ential Gear Oil” or an equivalent of
matching quality to satisfy the above specification. Please contact your Lexus dealer
for further details.
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory. Use Lexus approved “Toyota Genuine Differ ential Gear Oil” or an equivalent of
matching quality to satisfy the above specification. Please contact your Lexus dealer
for further details.
Electrical system (battery)
Specific gravity reading at
68 F (20 C):12.3 V or higher
In the case the voltage is less than standard,
charge battery.
(Voltage is checked 20 minutes after the engine)
Charging rates5 A max.
Front differential
Oil capacity1.48 qt. (1.40 L, 1.23 Imp.qt.)
Oil type and viscosity*Toyota Genuine Differential Gear Oil LT 75W-85
GL-5 or equivalent
Rear differential
Oil capacity2.85 qt. (2.70 L, 2.38 Imp.qt.)
Oil type and viscosity*Toyota Genuine Differential Gear Oil LT 75W-85
GL-5 or equivalent

607Alphabetical index
GX460_OM_OM60R27U_(U)
Bottle holders ......................................... 399
BrakeFluid.......................................................... 559
Parking brake...................................... 208
Warning light .......................................... 511
Brake assist .............................................. 351
Break-in tips..............................................166
Brake Override System.......................165
Brightness control Instrument panel light control .....................................................89
BSM (Blind Spot Monitor)................ 357 The Blind Spot Monitor function ................................................. 361
The Rear Cross Traffic Alert function ................................................364
Care ................................................ 434, 437 Aluminum wheels ..............................434
Exterior....................................................434
Interior ..................................................... 437
Seat belts ............................................... 438
Cargo hooks .......................................... 402
Cargo net hooks ................................... 403
Center differential................................ 340
CD player
*
Chains ....................................................... 368
Child restraint system............................ 54 Booster seats, definition ....................55
Booster seats, installation..................65
Convertible seats, definition ............55
Convertible seats, installation ......... 62 Installing child restraint system
with LATCH system........................ 60
Installing child restraint system with seat belts...................................... 62
Installing child restraint system with top tether strap......................... 66
Infant seats, definition.......................... 55
Infant seats, installation....................... 62
Child safety ................................................ 53 Airbag precautions.............................. 39
Back door precautions.......................113
Battery precautions ............... 461, 545
Child restraint system......................... 54
Glass hatch precaution ..................... 118
How your child should wear the seat belt ...........................................32
Installing child restraints .................... 58
Moon roof precautions .................... 162
Power window lock switch.............156
Power window precautions .......... 158
Rear door child-p rotectors ............107
Removed key battery precautions .......................................485
Seat belt precautions .......................... 33
Seat heater precautions .................389
Child-protectors .................................... 107
Cleaning Aluminum wheels .............................. 434
Exterior ................................................... 434
Interior ..................................................... 437
Seat belts................................................438
Clock........................................................... 412
Coat hooks ............................................. 420
Compass ................................................... 421
Condenser...............................................457
C
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.

608Alphabetical index
GX460_OM_OM60R27U_(U)
Console box ........................................... 396
Cool box .................................................. 409
Cooling system ..................................... 455Engine overheating.......................... 546
Conversation mirror ............................. 412
Crawl Control ....................................... 344
Cruise control Dynamic radar cruise control......254
Cup holders ............................................ 398
Curtain shield airbags ........................... 36
Current fuel consumption ................... 93
Customizable features ....................... 576
DAC (Downhill Assist Control system)................................................... 348
Daytime running light system ........... 210
Defogger Front windshield ................................ 380
Outside rear view mirrors .............. 381
Rear window ......................................... 381
Differential ............................................... 557
Dimension ............................................... 552
Display Drive information .................................. 93
Multi-information display ....................91
Warning message ............................ 520
Do-it-yourself maintenance ............. 447
Doors.......................................................... 104 Back door ................................................... 111
Door glasses ......................................... 156
Door lock ................................................ 104
Open door warning light................ 513
Outside rear view mirrors .............. 153
Rear door child-protector.............. 107
Drive information .................................... 93
Drive-Start Control ...............................166 Driver’s seat position memory............141
Driving ........................................................ 164
AVS switch ........................................... 339
Break-in tips ...........................................166
Correct posture .................................... 28
Procedures .............................................164
Winter drive tips ................................ 367
Dynamic radar cruise control ..........254
Eco Driving Indicator .............................96
EDR (Event data recorder)................... 10
Electronic key ......................................... 100 Battery-saving function .................... 123
If the electronic key does not operate properly ............................540
Replacing the battery ...................... 484
Emergency, in case of If the electronic key does not operate properly ............................540
If the engine will not start ...............538
If the vehicle has discharged battery ........................ 543
If the vehicle is trapped in rising water.....................................................502
If the warning buzzer sounds ......... 511
If the warning light turns on ............. 511
If you have a flat tire .......................... 524
If you lose your keys................. 101, 103
If you think something is wrong.................................................. 509
If your vehicle becomes stuck...................................................... 549
If your vehicle needs to be towed ...................................................503
If your vehicle overheats ................ 546
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