2021 LEXUS LS500 run flat

4TABLE OF CONTENTS
Trunk features................................349
5-6. Using the other interior features Other interior features .............. 352
Garage door opener.................. 360
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior ................................... 368
Cleaning and protecting the vehi- cle interior ..................................... 371
6-2. Maintenance Maintenance requirements ..... 374
General maintenance ................ 375
Emission inspection and mainte- nance (I/M) programs ............ 378
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................... 379
Hood................................................... 381
Positioning a floor jack................ 381
Engine compartment.................. 383
Battery ............................................... 391
Tires ................................................... 393
Replacing the tire ......................... 402
Tire inflation pressure ................. 406
Wheels.............................................. 407
Air conditioning filter..................409
Electronic key battery ................. 410
Checking and replacing fuses ............................................................ 412
Headlight aim.................................. 415
Light bulbs ........................................ 4167-1. Essential information
Emergency flashers ..................... 418
If your vehicle has to be stopped in an emergency ............................. 418
If the vehicle is trapped in rising water ............................................... 419
7-2. Steps to take in an emergency If your vehicle needs to be towed............................................................ 421
If you think something is wrong .......................................................... 425
Fuel pump shut off system ........ 426
If a warning light turns on or a warn- ing buzzer sounds...................... 427
If a warning messa ge is displayed
.......................................................... 436
If you have a flat tire .................... 438
If the engine will not start .......... 439
If you lose your keys...................... 441
If the fuel filler door cannot be opened ............................................ 441
If the electronic key does not oper- ate properly .................................. 442
If the vehicle battery is discharged .......................................................... 444
If your vehicle overheats ........... 449
If the vehicle becomes stuck ... 452
8-1. Specifications Maintenance data (fuel, oil level, etc.) ................................................. 456
Fuel information .

........................... 465
6Maintenance and care
7When trouble arises
8Vehicle specifications

13Pictorial index
Precautions for winter season .....................................................................................P.309
To prevent freezing (windshield wiper de-icer)
*.................................................P.328
Precautions for car wash ............................................................................................... P.369
Fuel filler door ........................................................................................................ P.200
Refueling method .............................................................................................................P. 200
Fuel type/fuel tank capacity ...... ................................................................................... P.457
Tires.......................................................................................................................... .P.393
Tire size/inflation pressure ......................... .......................................................P.393, 462
Winter tires/tire chains ..................................................................................................P.309
Checking/rotation/tire pressure warning system.............................................. P.393
Coping with flat tires........................................................................................................P .438
Hood ........................................................................................................................... P.381
Opening ........................................................................................................................ ........ P.381
Engine compartment cover .........................................................................................P.384
Engine oil ..................................................................................................................... .........P.458
Coping with overheating ............................................................................................... P.449
Warning messages .......................................................................................................... P.436
Headlights/cornering lights ................................................................................P.190
Parking lights/daytime running lights...............................................................P.190
Turn signal lights ......................................................................................................P.185
Tail lights .................................................................................................................... P.190
Stop lights
Hill-start assist control ....................................................................................................P. 304
License plate lights .................................................................................................P.190
Back-up lights
Changing the shift position to R................................................................................... P.178
Side marker lights ...................................................................................................P.190
*:If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.416)
E
F
G
H
I
J
K
L
M
N

2184-5. Using the driving support systems
■Enabling/disabling the pre-colli-
sion system
The pre-collision system can be
enabled/disabled on ( P.82) of
the multi-information display.
The system is automa tically enabled each
time the engine switch is turned to IGNI-
TION ON mode.
If the system is disabled, the PCS warn-
WARNING
• In some situations, while the active steering assist is operating, operation
of the function may be canceled if the
accelerator pedal is depressed
strongly or the steering wheel is turned
and the system determines that the
driver is taking evasive action.
• When the active steering assist is operating, if the stee ring wheel is held
firmly or is operated in the opposite
direction to that which the system is
generating torque, the function may be
canceled.
• If the brake pedal is depressed, the sys- tem may determine that the driver is
taking evasive action and the active
steering assist operation may be
delayed.
■Active Asssit for seat belts
If the Active Assist has operated and the
seat belts are locked in a retracted posi-
tion, immediately stop the vehicle in a
safe place, release and retract the seat
belts to unlock them and then fasten
them again.
Also, if a seat belt can be loosened, it can
be unlocked by slightly retracting it with-
out releasing it.
■When to disable the pre-collision sys-
tem
In the following situations, disable the
system, as it may not operate properly,
possibly leading to an accident resulting
in death or serious injury:
●When the vehicle is being towed
●When your vehicle is towing another
vehicle
●When transporting the vehicle via
truck, boat, train or similar means of
transportation
●When the vehicle is raised on a lift with
the engine running and the tires are
allowed to rotate freely
●When inspecting the vehicle using a
drum tester such as a chassis dyna-
mometer or speedometer tester, or
when using an on vehicle wheel bal-
ancer
●When a strong impact has been
applied to the front bumper, rear
bumper or front grille, due to an acci-
dent or other reasons
●If the vehicle cannot be driven in a sta-
ble manner, such as when the vehicle
has been in an accid ent or is malfunc-
tioning
●When the vehicle is driven in a sporty
manner or off-road
●When the tires are not properly
inflated
●When the tires are very worn
●When tires of a size other than speci-
fied are installed
●When tire chains are installed
●When a compact spare tire or an
emergency tire punctu re repair kit is
used
●If equipment (snow plow, etc.) that may
obstruct a radar sensor or the front
camera is temporarily installed to the
vehicle
Changing settings of the pre-col-
lision system

2294-5. Using the driving support systems
4
Driving
WARNING
●Do not attempt to test the operation of
the pre-collision system yourself.
Depending on the objects used for
testing (dummies, cardboard objects
imitating detectable objects, etc.), the
system may not operate properly, pos-
sibly leading to an accident.
■Pre-collision braking
●When the pre-collision braking func-
tion is operating, a large amount of
braking force will be applied.
●If the vehicle is stopped by the opera-
tion of the pre-collision braking func-
tion, the pre-collision braking function
operation will be canceled after
approximately 2 seco nds. Depress the
brake pedal as necessary.
●The pre-collision braking function may
not operate if certain operations are
performed by the driver. If the acceler-
ator pedal is being depressed strongly
or the steering wheel is being turned,
the system may determine that the
driver is taking evasive action and pos-
sibly prevent the pre-collision braking
function from operating.
●In some situations, while the pre-colli-
sion braking function is operating,
operation of the function may be can-
celed if the accelerator pedal is
depressed strongly or the steering
wheel is turned and the system deter-
mines that the driver is taking evasive
action.
●If the brake pedal is being depressed,
the system may determine that the
driver is taking evasive action and pos-
sibly delay the operation timing of the
pre-collision braking function.
■When to disable the pre-collision sys-
tem
In the following situations, disable the
system, as it may not operate properly,
possibly leading to an accident resulting
in death or serious injury:
●When the vehicle is being towed
●When your vehicle is towing another
vehicle
●When transporting the vehicle via
truck, boat, train or similar means of
transportation
●When the vehicle is raised on a lift with
the engine running and the tires are
allowed to rotate freely
●When inspecting the vehicle using a
drum tester such as a chassis dyna-
mometer or speedometer tester, or
when using an on vehicle wheel bal-
ancer
●When a strong impact is applied to the
front bumper or front grille, due to an
accident or other reasons
●If the vehicle cannot be driven in a sta-
ble manner, such as when the vehicle
has been in an accid ent or is malfunc-
tioning
●When the vehicle is driven in a sporty
manner or off-road
●When the tires are not properly
inflated
●When the tires are very worn
●When tires of a size other than speci-
fied are installed
●When tire chains are installed
●When a compact spare tire or an
emergency tire punctu re repair kit is
used
●If equipment (snow plow, etc.) that may
obstruct the radar sensor or front cam-
era is temporarily installed to the vehi-
cle

3435-4. Using the interior lights
5
Interior features
■Illuminated entry system
The lights automatically turn on/off accord-
ing to the engine switch mode, the pres-
ence of the electronic key, whether the
doors are locked/unlocked, and whether
the doors are opened/closed.
■To prevent the battery from being dis-
charged
If the interior lights remain on when the
engine switch is turned off, the lights will go
off automatically after 20 minutes.
■When front interior light or front per-
sonal lights do not respond as normal
●When water, dirt, et c., have adhered to
the lens surface
●When operated with a wet hand
●When wearing gloves, etc.
■The interior lights may turn on automati-
cally when
If any of the SRS airbags deploy (inflate) or
in the event of a strong rear impact, the inte-
rior lights will turn on automatically.
The interior lights will turn off automatically
after approximately 20 minutes.
The interior lights can be turned off manu-
ally. However, in order to help prevent fur-
ther collisions, it is recommended that they
be left on until safety can be ensured.
(The interior lights may not turn on auto-
matically depending on the force of the
impact and conditions of the collision.)
■Customization
Some functions can be customized.
(  P.476)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than
necessary when the engine is not run-
ning.
■Removing light lenses
Never remove th e lens for the front inte-
rior light and front personal lights. Other-
wise, the lights will be damaged. If a lens
needs to be removed, contact your Lexus
dealer.

3776-2. Maintenance
6
Maintenance and care
Parking brake
• Does the parking brake operate nor-
mally?
•When parked on a slope and the park-
ing brake is on, is the
vehicle securely
stopped?
Seat belts
• Do the seat belts operate smoothly?
• The seat belts should not be damaged.
Seats• Do the seat controls operate properly?
Steering wheel
• Does the steering wheel rotate
smoothly?
• Does the steering wheel have the cor-
rect amount of free
play?
•There should not be any strange sounds
coming from the
steering wheel.
Vehicle exterior
ItemsCheck points
Doors/trunk• Do the doors/trunk 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.
ItemsCheck points
Tires
• Is the tire inflation pressure correct?
• The tires should not be damaged or
excessively worn.
• Have the tires been rotated according to
the maintenance
schedule?
•The wheel nuts should not be loose.
Windshield wip-
ers
• The wiper blades should not show any
signs of cracking,
splitting, wear, con-
tamination or defor-
mation.
• The wiper blades should clear the
windshield without
streaking or skip-
ping.
ItemsCheck points

3806-3. Do-it-yourself maintenance
Radiator, con-
denser, inter-
cooler radiator
and intercooler
sub radiator
( P.389)

Tire inflation pres-
sure ( P.406)• Tire pressure gauge
•Compressed air
source
Washer fluid
( P.390)
• Water or washer
fluid containing anti-
freeze (for winter
use)
• Funnel (used only for adding water or
washer fluid)
WARNING
The engine compartment contains many
mechanisms and fluids that may move
suddenly, become hot, or become elec-
trically energized. To avoid death or seri-
ous injury, observe the following
precautions.
■When working on the engine com-
partment
●Keep hands, clothi ng and tools away
from the moving fan and engine drive
belt.
●Be careful not to touch the engine,
radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil
and other fluids may also be hot.
●Do not leave anything that may burn
easily, such as paper and rags, in the
engine compartment.
●Do not smoke, cause sparks or expose
an open flame to fuel. Fuel fumes are
flammable.
ItemsParts and tools■When working near the electric cool-
ing fan or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION
ON mode, the electric cooling fan may
automatically start to run if the air condi-
tioning is on and/or the coolant tempera-
ture is high. ( P.389)
■Safety glasses
Wear safety glasses to prevent flying or
falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter
removed may cause excessive engine
wear due to dirt in the air.

3956-3. Do-it-yourself maintenance
6
Maintenance and care
Lexus recommends that tire rotation is car-
ried out at the same interval as tire inspec-
tion.
Do not fail to initialize the tire pressure
warning system after tire rotation.
Vehicles with front and rear tires of
differing sizes
Tires cannot be rotated.
For XXX/XXRXX size tires
When run-flat tires are installed, the
vehicle can be driven for a maximum of
50 miles (80 km) at a speed below 50
mph (80 km/h) after any tire goes flat.
(However, the vehicle speed may not
increase to near 50 mph [80 km/h]
depending on weather or driving con-
ditions.)
Make sure to replace th e flat tire before the
vehicle has been driven for near 50 miles
(80 km). Also, do not use a repaired tire.
For XXX/XXRFXX size tires
When run-flat tires are installed, the
vehicle can be driven for a maximum of
100 miles (160 km) at a speed below
50 mph (80 km/h) after any tire goes
flat. (However, the vehicle speed may
not increase to near 50 mph [80
km/h] depending on weather or driv-
ing conditions.)
Make sure to replace th e flat tire before the
vehicle has been driven for near 100 miles
(160 km). Also, do not use a repaired tire.
A run-flat tire has a or
mark on the side wall.
■Run-flat tires
●The run-flat tires are for only this vehicle.
Do not use the tires on other vehicles.
●Do not mix run-flat tires and normal tires.
●If non-genuine Lexus wheels are used, it
may be impossible to sufficiently demon-
strate the performance of run-flat tires.
Your vehicle is equipped with a tire
pressure warning system that uses tire
pressure warning valves and transmit-
ters to detect low ti re inflation pressure
before serious problems arise.
 The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. ( P.82)
 If the tire pressure drops below a
predetermined level, the driver is
warned by a screen display and a
warning light. ( P.431)Run-flat tires
Tire pressure warning system