2020 Lexus GX460 maintenance

GX460_OM_OM60R27U_(U)
Pictorial indexSearch by illustration
1For safety
and securityMake sure to read through them
2Instrument clusterHow to read the gauges and meters, the variety of
warning lights and indicators, etc.
3Operation of
each componentOpening and closing the doors and windows,
adjustment before driving, etc.
4DrivingOperations and advice whic h are necessary for driving
5Interior featuresUsage of the interior features, etc.
6Maintenance
and careCaring for your vehicle and maintenance procedures
7When trouble
arisesWhat to do in case of malfunction or emergency
8Vehicle
specificationsVehicle specifications, customizable features, etc.
9For owners
Reporting safety defects for U.S. owners, and seat belt,
SRS airbag and headlight aim instructions for
Canadian owners
IndexSearch by symptom
Search alphabetically

5
1
8 7
6
5
4
3
2
GX460_OM_OM60R27U_(U)
9
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 434
Cleaning and protecting the vehicle interior.................. 437
6-2. Maintenance Maintenance requirements ............................ 440
General mainte nance.............. 443
Emission inspection and maintenance (I/M)
programs.................................... 446
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 447
Hood ............................................... 450
Engine compartment .................451
Tires ................................................. 464
Tire inflation pressure .............. 476
Wheels ...........................................480
Air conditioning filter ............... 482
Electronic key battery.............. 484
Checking and replacing fuses.............................................. 486
Headlight aim .............................. 489
Light bulbs ......................................491 7-1. Essential information
Emergency flashers ..................500
If your vehicle has to be stopped in
an emergency ........................... 501
If the vehicle is trapped in rising water ................................ 502
7-2. Steps to take in an emergency If your vehicle needs to be towed ............................... 503
If you think something is wrong........................................... 509
Fuel pump shut off system....... 510
If a warning light turns on or a warning buzzer
sounds ............................................ 511
If a warning message is displayed .................................... 520
If you have a flat tire .................. 524
If the engine will not start ........538
If the electronic key does not operate properly ............. 540
If the vehicle battery is discharged................................. 543
If your vehicle overheats......... 546
If the vehicle becomes stuck ............................................. 549
6Maintenance and care7When trouble arises

TABLE OF CONTENTS6
GX460_OM_OM60R27U_(U)
8-1. SpecificationsMaintenance data (fuel, oil level, etc.) .................. 552
Fuel information ......................... 562
Tire information .......................... 565
8-2. Customization Customizable features ............ 576
8-3. Items to initialize Items to initialize.........................585
Reporting safety defects for U.S. owners ................................... 588
Seat belt instructions for Canadian owners
(in French)..............................................589
SRS airbag instructions for Canadian owners
(in French)............................................... 591
Headlight aim instructions for Canadian owners
(in French).............................................. 599 What to do if...
(Troubleshooting)............................... 604
Alphabetical inde x ................................608
8Vehicle specifications
9For owners
Index
For vehicles with navigation system or multimedia system, refer to the “NAVI-
GATION SYSTEM OWNER’S MANU AL” or “MULTIMEDIA OWNER’S
MANUAL” for information regard ing the equipment listed below.
• Navigation system
• Audio/video system
• Rear seat entertainment system
• Hands-free system (for cellular phone)
• Lexus Enform

761-3. Theft deterrent system
GX460_OM_OM60R27U_(U)
Engine immobilizer system
The indicator light flashes after the
engine switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the engine switch has been turned to
ACCESSORY or IGNITION ON
mode to indicate that the system has
been canceled.
■System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touchi ng a key to the security system (key with a
built-in transponder ch ip) of another vehicle
■Certifications for the en gine immobilizer system
For vehicles sold in the U.S.A., Ha waii, Guam, Saipan and Puerto Rico
The vehicle’s keys have built-in transponder chips that prevent the engine
from starting if a key has not been previously registered in the vehicle’s on-
board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prev ent vehicle theft but does not guarantee
absolute security against all vehicle thefts.

791-3. Theft deterrent system
GX460_OM_OM60R27U_(U)
1
For safety and security
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-
ing.
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
In the following cases, depending on the si tuation, the door may automatically lock to
prevent improper entry into the vehicle:
●When a person remaining in the vehicle un locks the door and the alarm is activated.
●While the alarm is activated, a person remaining in the vehicle unlocks the door.
●When recharging or replacing the battery.
■Alarm memory function
After the alarm is activated, when you unlock any door using a entry function, wireless
remote control or mechanical key, the tail lights turn on for about 2 seconds to inform
you that the system was activated.
●A person inside the vehicle opens a door or
hood, or unlocks the vehicle using an inside
lock button.
●The battery is recharged or replaced when the
vehicle is locked. (P. 544)
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation of
the system cannot be guaranteed.

GX460_OM_OM60R27U_(U)
892. Instrument cluster
2
Instrument cluster
Odometer, trip meter and maintenance required information display
Odometer:
Displays the total distance the vehicle has been driven
Trip meter:
Displays the distance the vehicle has been driven since the meter was last reset. Trip
meters A and B can be used to record an d display different distances independently.
Maintenance required information: • Displays the maintenance requ ired information when the engine switch is in IGNI-
TION ON mode.
• It can be reset from of the multi-information display. ( P. 91)
Rear height control air suspension display (if equipped)
Displays the rear height mode selected ( P. 335)
Switches between odometer, trip meter
and maintenance required information
displays. When the trip meter is dis-
played, pressing and holding the button
will reset the trip meter.
The brightness of the instrument cluster lights can be adjusted.
Brighter
Darker
Changing the display
8
9
Instrument cluster light control switch
1
2

GX460_OM_OM60R27U_(U)
952. Instrument cluster
2
Instrument cluster
The settings of the following items can be changed. (P. 576)
For functions that can be enabled or disabled, the function switches between on and
off each time is pressed.
■LDA (Lane Departure Alert) ( P. 246)
■BSM (Blind Spot Monitor)* ( P. 357)
■PCS (Pre-Collision System) ( P. 235)
■Intuitive parking assist* ( P. 266)
■Vehicle settings
●Tire pressure warning system (P. 465)
●Scheduled maintenance* (P. 441)
●Oil maintenance (P. 454)
■Meter settings
Select to set the following items.
●Language
Select to change the language on the display.
●Units
Select to change the unit for measure.
● Eco Driving Indicator Light
Select to activate/deactivate th e Eco Driving Indicator Light.
● Switch settings
You can register 1 screen as the top screen. To register, press and hold
while the desired screen is displayed.
●Initialization
Registered or changed meter settings w ill be deleted or returned to their
default setting.
*: If equipped
Settings display

GX460_OM_OM60R27U_(U)
1914-1. Before driving
4
Driving
■AVS (adaptive variable suspension system) (if equipped)
The suspension can be switched for improvement in driveability. (P. 339)
■Break-in schedule
If your vehicle is new or equipped with any new power train components (such as an
engine, transmission, differential or wheel bearing), Lexus recommends that you do not
tow a trailer until the vehicle has been driven for over 500 miles (800 km).
After the vehicle has been driven for over 500 miles (800 km), you can start towing.
However, for the next 500 miles (800 km), drive the vehicle at a speed of less than
50 mph (80 km/h) when towing a trailer, and avoid full throttle acceleration.
■Maintenance
●If you tow a trailer, your vehicle will require more frequent maintenance due to the addi-
tional load. (See “Owner’s Guide”, “Warranty and Services Guide”, “Owner’s Manual
Supplement” or “Warranty Booklet”.)
●Retighten the fixing bolts of the towing ba ll and bracket after approximately 600 miles
(1000 km) of trailer towing.
■If trailer sway occurs
One or more factors (crosswinds, passing ve hicles, rough roads, etc.) can adversely
affect handling of your vehicle and trailer, causing instability.
●If trailer swaying occurs:
• Firmly grip the steering wh eel. Steer straight ahead.
Do not try to control trailer sway ing by turning the steering wheel.
• Begin releasing the accelerator pedal im mediately but very gradually to reduce
speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle and trailer
should stabilize.