inflation pressure Lexus GX460 2021 Owner's Manual /

5
1
8 7
6
5
4
3
2
GX460_OM_OM60T19U_(U)
9
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 442
Cleaning and protecting the vehicle interior.................. 445
6-2. Maintenance Maintenance requirements ............................ 448
General mainte nance................451
Emission inspection and maintenance (I/M)
programs.................................... 454
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 455
Hood ............................................... 458
Engine compartment ............... 459
Tires ..................................................472
Tire inflation pressure .............. 484
Wheels ...........................................488
Air conditioning filter ............... 490
Electronic key battery.............. 492
Checking and replacing fuses.............................................. 494
Headlight aim .............................. 497
Light bulbs .................................... 499 7-1. Essential information
Emergency flashers ..................508
If your vehicle has to be stopped in
an emergency .......................... 509
If the vehicle is trapped in rising water ................................. 510
7-2. Steps to take in an emergency If your vehicle needs to be towed .................................. 511
If you think something is wrong.............................................516
Fuel pump shut off system........ 517
If a warning light turns on or a warning buzzer
sounds .......................................... 518
If a warning message is displayed .................................... 527
If you have a flat tire ....................531
If the engine will not start ........ 545
If the electronic key does not operate properly ............. 547
If the vehicle battery is discharged.................................550
If your vehicle overheats......... 553
If the vehicle becomes stuck ............................................. 556
6Maintenance and care7When trouble arises

15Pictorial index
GX460_OM_OM60T19U_(U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 222
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 374
To prevent freezing (windshield wiper de-icer
*) . . . . . . . . . . . . . . . . . . . . . . . P. 389
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 443
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 229
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 562
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 472
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 568
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 37 4
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . P. 472
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 531
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 458
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 458
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 562
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 553
Warning lights/warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 114, 520
Camera*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 278, 292
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 221
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 211
Stop/tail lights
Hill-start assist control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 356
Downhill assist control system*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 352
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 206
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213
4
5
6
7
8
Light bulbs of the exte rior lights for driving
(Replacing method: P. 499, Watts: P. 569)
*: If equipped
9
10
11
12
13
14
15
16

96
GX460_OM_OM60T19U_(U)2. Instrument cluster
■Eco Indicator (Eco Driving Indicator Zone Display)

P. 98
■Speed
Displays the vehicle speed.
■Sway warning
Detects the sway of the vehicle within a lane, which is often associated with a
decrease in the driver’s at tention level, and displays the decrease in attention
using a bar display.
The shorter the bar length, the more the driver may need to rest.
This display is a part of the LDA (Lane Departure Alert) system. The display is
enabled when the operating conditions of the vehicle sway warning function are
met. ( P. 250)
■Blank screen (display off)
Drive information is not displayed.
■Front tire angle
Displays the direction of the front tires.
The tire direction is displaye d in 3 stages for both left and right, in accordance with
the angle of the tire.
If a battery terminal is disconnected an d reconnected, the display may be disabled
temporarily. After driving the vehicle for a while, the display will be enabled.
■Tire inflation pressure
Displays inflation pressure of each tire.
The inflation pressure of the spare tire will also be displayed.
Vehicle information

98
GX460_OM_OM60T19U_(U)2. Instrument cluster
■Eco Driving Indicator
●The shift lever is in any position other than D.
●Vehicles with adaptive variable suspension
system: The driving mode is set to sport
mode.
●The vehicle speed is approximately 81 mph (130 km/h) or higher.
■When disconnecting and reconnecting battery terminals
The drive information other than the cu rrent fuel consumption will be reset.
■Tire inflation pressure
●It may take a few minutes to display the tire inflation pressure after the engine switch is
turned to IGNITION ON mode. It may also take a few minutes to display the tire infla-
tion pressure after inflation pressure has been adjusted.
●“---” may be displayed if the tire information cannot be determined due to unfavorable
radio wave conditions.
●Tire inflation pressure changes with temperat ure. The displayed values may also be dif-
ferent from the values measured using a tire pressure gauge.
■When setting up the display
Stop the vehicle in a safe place, apply the pa rking brake, and shift the shift lever to P.
■Suspension of the settings display
In the following situations, the settings display using the meter control switches will be
suspended.
●When a warning message appears on the multi-information display
●When the vehicle begins to move
■Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem continuing to use the display.
Eco Driving Indicator Light
During Eco-friendly ac
celeration operation
(Eco driving), the Eco Driving Indicator Light
will turn on. When the acceleration exceeds
Zone of Eco driving, or when the vehicle is
stopped, the light turns off.
Eco Driving Indicator Zone Display
Suggests the Zone of Eco driving with current
Eco driving ratio based on acceleration.
Eco driving ratio based on acceleration
If the acceleration exceeds Zone of Eco driv-
ing, the right side of Eco Driving Indicator
Zone Display will illuminate.
Zone of Eco driving
Eco Driving Indicator will not operate under the
following conditions:
1
2
3
4

248
GX460_OM_OM60T19U_(U)4-5. Using the driving support systems
• After the engine has started the vehicle has not been driven for a certain amount of time
• While making a left/right turn and for a few seconds after making a left/right turn
• While driving on a curve and for a few seconds after driving on a curve
• If your vehicle is skidding
• If the wheels are misaligned
• If a wiper blade is blocking the front camera
• The vehicle is wobbling.
• The vehicle is being driven at extremely high speeds.
• When driving on a hill
• If the radar sensor or fr ont camera is misaligned
●In some situations such as the following, sufficient braking forc e may not be obtained,
preventing the system from performing properly:
• If the braking functions cannot operate to their full extent, such as when the brake parts are extremely cold, extremely hot, or wet
• If the vehicle is not properly maintained (brakes or tires are excessively worn,
improper tire inflation pressure, etc.)
• When the vehicle is being driven on a gravel road or other slippery surface
●Some pedestrians such as the following may not be detected by the radar sensor and
front camera, preventing the system from operating properly:
• Pedestrians shorter than approximately 3.2 ft. (1 m) or taller than approximately
6.5 ft. (2 m)
• Pedestrians wearing oversized clothing (a ra in coat, long skirt, etc.), making their sil-
houette obscure
• Pedestrians who are carrying large baggage, holding an umbrella, etc., hiding part
of their body
• Pedestrians who are bending forward or squatting
• Pedestrians who are pushing a stroller , wheelchair, bicycle or other vehicle
• Groups of pedestrians which are close together
• Pedestrians who are wearing white and look extremely bright
• Pedestrians in the dark, such as at night or while in a tunnel
• Pedestrians whose clothing appears to be nearly the same color or brightness as
their surroundings
• Pedestrians near walls, fences , guardrails, or large objects
• Pedestrians who are on a metal object (manhole cover, steel plate, etc.) on the road
• Pedestrians who are walking fast
• Pedestrians who are changing speed abruptly
• Pedestrians running out from be hind a vehicle or a large object
• Pedestrians who are extremely close to the side of the vehicle (outside rear view mirror, etc.)
• If the front of the vehicle is raised or low-
ered

441
GX460_OM_OM60T19U_(U)
6Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 442
Cleaning and protecting the vehicle interior.................. 445
6-2. Maintenance Maintenance requirements ............................448
General maintenance............... 451
Emission inspection and maintenance (I/M)
programs .................................... 454
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................455
Hood ...............................................458
Engine compartment ............... 459
Tires ................................................. 472
Tire inflation pressure...............484
Wheels .......................................... 488
Air conditioning filter ...............490
Electronic key battery .............. 492
Checking and replacing fuses .............................................. 494
Headlight aim .............................. 497
Light bulbs..................................... 499

GX460_OM_OM60T19U_(U)
4536-2. Maintenance
6
Maintenance and care
Vehicle exterior
ItemsCheck points
Doors• Do the doors operate smoothly?
Engine hood• Does the engine hood lock system work properly?
Fluid leaks• There should not be any signs of fluid leakage after
the vehicle has been parked.
Tires
• Is the tire inflation pressure correct?
• The tires should not be damaged or excessively worn.
• Have the tires been rotated according to the mainte- nance schedule?
• The wheel nuts should not be loose.
Windshield wipers/rear
window wiper
•The wiper blades should no t show any signs of crack-
ing, splitting, wear, contamination or deformation.
• The wiper blades should clear the windshield/rear
window without streaking or skipping.
WARNING
■If the engine is running
Turn off the engine and ensure that there is adequate ventilation before performing
maintenance checks.

456
GX460_OM_OM60T19U_(U)6-3. Do-it-yourself maintenance
Headlight aim
(
 P. 497)• Phillips-head screwdriver
Light bulbs
( P. 499)
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead sc rewdriver
•Wrench
Power steering fluid
level (P. 467)• Automatic transmission fluid DEXRON® II or III
• Rag or paper towel•Clean funnel
Radiator and con-
denser ( P. 465)
Tire inflation pres-
sure (P. 484)• Tire pressure gauge• Compressed air source
Washer fluid
( P. 471)• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
ItemsParts and tools

GX460_OM_OM60T19U_(U)
4736-3. Do-it-yourself maintenance
6
Maintenance and care
Your vehicle is equipped with a tire pressure warning system that uses tire pres-
sure warning valves and transmitters to detect low tire inflation pressure before
serious problems arise.
●If the tire pressure drops below a predet ermined level, the driver is warned by
a screen display and a warning light. ( P. 520)
●The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. ( P. 93)
The illustration used is intended as an
example, and may differ from the image
that is actually disp layed on the multi-
information display.
◆Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pr essure warning valves and transmitters
must also be installed.
When new tire pressure wa rning valves and transmitters are installed, new ID
codes must be registered in the tire pressure warning computer and the tire
pressure warning system must be initialized. ( P. 475)
◆Initializing the tire pressure warning system
■The tire pressure warning system must be initialized in the following circum-
stances:
●When changing the tire size.
●When rotating the tires.
●When the tire inflation pressure is changed such as when changing travel-
ing speed or load weight.
●After registering the ID codes. ( P. 475)
When the tire pressure warning system is initialized, the current tire inflation
pressure is set as the benchmark pressure.
Tire pressure warning system

474
GX460_OM_OM60T19U_(U)6-3. Do-it-yourself maintenance
■How to initialize the tire pressure warning system
Park the vehicle in a safe place and st op the engine for 20 minutes or more.
Initialization cannot be performed while the vehicle is moving.
Adjust the tire inflation pressure to th e specified cold tire inflation pressure
level. ( P. 568)
Make sure to adjust the tire pressure to the specified cold tire inflation pressure
level. The tire pressure warning system will operate based on this pressure level.
Start the engine. (P. 200)
Press or of the meter control switches and select .
Press or of the meter control switches and select “Vehicle
Settings”, and then press .
Press or of the meter control switches and select “TPWS”, and
then press .
Press or of the meter
control switches and select “Set
Pressure”, and then press and
hold until the tire pressure
warning light starts blinking.
A message is displayed on the multi-
information display. Also, “--” is dis-
played for inflation pressure of each
tire on the multi-information display
while the tire pressure warning sys-
tem determines the position.
Drive at approximately 25 mph (40 km /h) or more for approximately 10 to
30 minutes.
When initialization is comple te, the inflation pressure of each tire will be displayed
on the multi-information display.
Even if the vehicle is not driven at ap proximately 25 mph (40 km/h) or more, ini-
tialization can be co mpleted by driving for a long ti me. However, if initialization
does not complete after driving for 1 hour or more, park the vehicle in a safe place
for approximately 20 minutes and then drive the vehicle again.
1
2
3
4
5
6
7
8