Lexus LS500 (2023 year). Manual in english

438

7-2. Steps to take in an emergency

Depress the brake pedal.

Touch the Lexus emblem side of the
electronic key to the engine switch.

When the electronic key is detected, a

buzzer sounds and the engine switch will

turn to IGNITION ON mode.
When the smart access system with

push-button start is deactivated in custom-

ization setting, the engine switch will turn

to ACCESSORY mode.

Firmly depress the brake pedal and
check that

is shown on the

multi-information display.

Press the engine switch.

In the event that the engine still cannot
be started, contact your Lexus dealer.

■

Stopping the engine

Set the parking brake, shift the shift position

to P and press the engine switch as you nor-

mally do when stopping the engine.

■

Electronic key battery

As the above procedure is a temporary

measure, it is recommended that the elec-

tronic key battery be replaced immediately

when the battery is depleted. (



P.403)

■

Alarm (for Canada)

If a door or trunk is unlocked using the

mechanical key when the alarm system is

set, the alarm may be triggered. (



P.63)

■

Changing engine switch modes

Release the brake pedal and press the

engine switch in step

above. The engine

does not start and modes will be changed

each time the switch is pressed. (



P.171)

Starting the engine

439

7-2. Steps to take in an emergency

When trouble

ari

ses

If you have a set of jumper (or booster)
cables and a second vehicle with a
12-volt battery, you can jump start your
vehicle by following the steps below.



Method connecting jumper (or
booster) cables to the battery

Confirm that the electronic key is
being carried.

When connecting the jumper (or booster)

cables, depending on the situation, the

alarm may activate and doors locked.

(



P.64)

Open the trunk lid and remove the
luggage mat. (



P.342)

In the event that the trunk opener cannot

be used, use the mechanical key to open

the trunk. (



P.436)

Connect a positive jumper cable clamp to on your vehicle and connect the
clamp on the other end of the positive cable to on the second vehicle. Then,

If the vehicle battery is dis-
charged

The following procedures may be
used to start the engine if the vehi-
cle’s battery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.

Restarting the engine

440

7-2. Steps to take in an emergency

connect a negative cable clamp to on the second vehicle and connect the
clamp at the other end of the negative cable to .

Positive (+) battery terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery terminal (second vehicle)
Negative (-) battery terminal (your vehicle)

Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to
recharge the battery of your vehi-
cle.

Open and close any of the doors of
your vehicle with the engine switch
off.

Maintain the engine speed of the
second vehicle and start the engine
of your vehicle by turning the
engine switch to IGNITION ON
mode.

Once the vehicle’s engine has
started, remove the jumper cables
in the exact reverse order from
which they were connected.



Method connecting jumper (or
booster) cables to the exclusive
jump starting terminal

Confirm that the electronic key is
being carried.

When connecting the jumper (or booster)

cables, depending on the situation, the

alarm may activate and doors locked.

(



P.64)

Open the hood. Remove the ser-
vice cover. (



P.375, 379)

Open the fuse box cover.

A
B
C
D

441

7-2. Steps to take in an emergency

When trouble

ari

ses

Push the tab in and lift the lid off.

Open the exclusive jump starting
terminal cover.

Remove the engine cover.
(



P.378)

Connect a positive jumper cable clamp to   on your vehicle and connect the
clamp on the other end of the positive cable to   on the second vehicle. Then,
connect a negative cable clamp to   on the second vehicle and connect the
clamp at the other end of the negative cable to  .

Use jumper cables that can reach the specified terminals and connecting point.

Exclusive jump starting terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery terminal (second vehicle)
Metallic point shown in the illustration

Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for

approximately 5 minutes to
recharge the battery of your vehi-
cle.

A
B
C
D

442

7-2. Steps to take in an emergency

Open and close any of the doors of
your vehicle with the engine switch
off.

Maintain the engine speed of the
second vehicle and start the engine
of your vehicle by turning the
engine switch to IGNITION ON
mode.

Once the vehicle’s engine has
started, remove the jumper cables
in the exact reverse order from
which they were connected.

Close the exclusive jump starting
terminal cover, and reinstall the fuse
box cover to its original position.

Install the service cover. (



P.379)

Install the engine cover. (



P.379)

Once the engine starts, have the vehi-
cle inspected at your Lexus dealer as
soon as possible.

■

Starting the engine when the battery is

discharged

The engine cannot be started by push-start-

ing.

■

To prevent battery discharge

●

Turn off the headlights and the audio sys-

tem while the engine is off.

●

Turn off any unnecessary electrical com-

ponents when the vehicle is running at a

low speed for an extended period, such

as in heavy traffic.

■

When the battery is removed or dis-

charged

●

Information stored in the ECU is cleared.

When the battery is depleted, have the

vehicle inspected at your Lexus dealer.

●

Some systems may require initialization.

(



P.484)

■

When removing the battery terminals

When the battery terminals are removed,

the information stored in the ECU is

cleared. Before removing the battery termi-

nals, contact your Lexus dealer.

■

Charging the battery

The electricity stored in the battery will dis-

charge gradually even when the vehicle is

not in use, due to natural discharge and the

draining effects of certain electrical appli-

ances. If the vehicle is left for a long time,

the battery may discharge, and the engine

may be unable to start. (The battery

recharges automatically during driving.)

■

When recharging or replacing the bat-

tery

●

In some cases, it may not be possible to

unlock the doors using the smart access

system with push-button start when the

battery is discharged. Use the wireless

remote control or the mechanical key to

lock or unlock the doors.

●

The engine may not start on the first

attempt after the battery has recharged

but will start normally after the second

attempt. This is not a malfunction.

●

The engine switch mode is memorized by

the vehicle. When the battery is recon-

nected, the system will return to the

mode it was in before the battery was dis-

charged. Before disconnecting the bat-

tery, turn the engine switch off.

If you are unsure what mode the engine

switch was in before the battery dis-

charged, be especially careful when

reconnecting the battery.

●

If the battery discharges, it may not be

possible to shift the shift position to other

positions. In this case, the vehicle cannnot

be towed without lifting both rear wheels

because the rear wheels will be locked.

■

When replacing the battery

●

Use a Central Degassing type battery

(European Regulations).

●

Use a battery with the same case size as

the previous battery and an equivalent

20 hour rate capacity (20HR) or greater.

• If the sizes differ, the battery cannot be

properly secured.

443

7-2. Steps to take in an emergency

n t

ise

• If the 20 hour rate capacity is low, even if

the time period where the vehicle is not

used is a short time, the battery may dis-

charge and the engine may not be able to

start.

●

Use a battery with a handle. If a battery

without a handle is used, removal is more

difficult.

●

After replacing, firmly attach the follow-

ing items to the exhaust hole of the bat-

tery.

• Use the exhaust hose that was attached

to the battery before replacing and con-

firm that it is firmly connected to the hole

section of the vehicle.

• Use the exhaust hole plug included with

the battery replaced or the one installed

on the battery prior to the replacement.

(Depending on the battery to be

replaced, the exhaust hole may be

plugged.)

Exhaust hole plug
Exhaust hole
Exhaust hose

For details, consult your Lexus dealer.

WARNING

■

When removing the battery terminals

Always remove the negative (-) terminal

first. If the positive (+) terminal contacts

any metal in the surrounding area when

the positive (+) terminal is removed, a

spark may occur, leading to a fire in addi-

tion to electrical shocks and death or

serious injury.

■

Avoiding battery fires or explosions

Observe the following precautions to

prevent accidentally igniting the flamma-

ble gas that may be emitted from the bat-

tery:

●

Make sure each jumper cable is con-

nected to the correct terminal and that

it is not unintentionally in contact with

any other than the intended terminal.

●

Do not allow the other end of the

jumper cable connected to the “+” ter-

minal to come into contact with any

other parts or metal surfaces in the

area, such as brackets or unpainted

metal.

●

Do not allow the + and - clamps of the

jumper cables to come into contact

with each other.

●

Do not smoke, use matches, cigarette

lighters or allow open flame near the

battery.

■

Battery precautions

The battery contains poisonous and cor-

rosive acidic electrolyte, while related

parts contain lead and lead compounds.

Observe the following precautions when

handling the battery:

●

When working with the battery, always

wear safety glasses and take care not

to allow any battery fluids (acid) to

come into contact with skin, clothing

or the vehicle body.

●

Do not lean over the battery.

444

7-2. Steps to take in an emergency

WARNING

●

In the event that battery fluid comes

into contact with the skin or eyes,

immediately wash the affected area

with water and seek medical attention.

Place a wet sponge or cloth over the

affected area until medical attention

can be received.

●

Always wash your hands after handling

the battery support, terminals, and

other battery-related parts.

●

Do not allow children near the battery.

■

After recharging the battery

Have the battery inspected at your Lexus

dealer as soon as possible.

If the battery is deteriorating, continued

use may cause the battery to emit a mal-

odorous gas, which may be detrimental

to the health of passengers.

■

When replacing the battery

●

When the vent plug and indicator are

close to the hold down clamp, the bat-

tery fluid (sulfuric acid) may leak.

●

For information regarding battery

replacement, contact your Lexus

dealer.

●

After replacing, securely attach the

exhaust hose and exhaust hole plug to

the exhaust hole of the replaced bat-

tery. If not properly installed, gases

(hydrogen) may leak into the vehicle

interior, and there is the possible dan-

ger of the gas igniting and exploding.

NOTICE

■

When handling jumper cables

When connecting the jumper cables,

ensure that they do not become entan-

gled in the cooling fan or engine drive

belt.

■

When connecting jumper cables

Make sure to connect jumper cables to

the specified terminals and connecting

point. Failure to do so may adversely

affect the electronic devices or damage

to them.

■

To prevent damaging the vehicle

The exclusive jump starting terminal is to

be used when charging the battery from

another vehicle in an emergency. It can-

not be used to jump start another vehicle.

445

7-2. Steps to take in an emergency

When trouble

ari

ses

Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the engine.

If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.

After the engine has cooled down
sufficiently, inspect the hoses and

radiator core (radiator) for any
leaks.

Radiators
Cooling fan

If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.

The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.



Engine

Reservoir
“F” line
“L” line
Coolant inlet cap

If your vehicle overheats

The following may indicate that
your vehicle is overheating.



The engine coolant temperature
gauge (



P.71, 74) is in the red

zone or a loss of engine power is
experienced. (For example, the
vehicle speed does not increase.)



“Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” is shown on the
multi-information display.



Steam comes out from under the
hood.

Correction procedures

A
B

A
B
C
D

446

7-2. Steps to take in an emergency



Intercooler

Reservoir
“F” line
“L” line

Add coolant if necessary.

Water can be used in an emergency if

coolant is unavailable.



Engine



P.446



Intercooler

Remove the engine compartment cover
and add coolant.

Start the engine and turn the air
conditioning system on to check
that the radiator cooling fan oper-
ates and to check for coolant leaks
from the radiator or hoses.

The fan operates when the air conditioning

system is turned on immediately after a

cold start. Confirm that the fan is operating

by checking the fan sound and air flow. If it

is difficult to check these, turn the air con-

ditioning system on and off repeatedly.

(The fan may not operate in freezing tem-

peratures.)

If the fan is not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the
nearest Lexus dealer.

■

When adding engine coolant

Add coolant in accordance with the follow-

ing procedure.

A
B
C

447

7-2. Steps to take in an emergency

n t

ise

Remove the engine compartment

cover.

Remove the engine cover. (



P.378)

Remove the caps

and

Add coolant through the inlet of the cap

up to the “F” line

, and then

replace the cap

Add coolant through the inlet of the cap

until it is full, and then replace the

cap

Install the engine compartment cover

and engine cover. (



P.379)

WARNING

■

When inspecting under the hood of

your vehicle

Observe the following precautions.

Failure to do so may result in serious

injury such as burns.

●

If steam is seen coming from under the

hood, do not open the hood until the

steam has subsided. The engine com-

partment may be very hot.

●

Keep hands and clothing (especially a

tie, a scarf or a muffler) away from the

fan and belts.

Failure to do so may cause the hands

or clothing to be caught, resulting in

serious injury.

●

Do not loosen the coolant inlet cap,

the engine coolant reservoir cap or the

intercooler coolant reservoir cap while

the engine and radiator are hot.

High temperature steam or coolant

could spray out.

NOTICE

■

When adding engine coolant

Add coolant slowly after the engine has

cooled down sufficiently. Adding cool

coolant to a hot engine too quickly can

cause damage to the engine.

■

To prevent damage to the cooling sys-

tem

Observe the following precautions:

●

Avoid contaminating the coolant with

foreign matter (such as sand or dust

etc.).

●

Do not use any coolant additive.

448

7-2. Steps to take in an emergency

Stop the engine. Set the parking
brake and shift the shift position to
P.

Remove the mud, snow or sand
from around the rear wheels.

Place wood, stones or some other
material under the rear wheels to
help provide traction.

Restart the engine.

Shift the shift position to D or R and
release the parking brake. Then,
while exercising caution, depress
the accelerator pedal.

■

When it is difficult to free the vehicle

Press the

switch to turn off TRAC.

If the vehicle becomes stuck

Carry out the following proce-
dures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:

Recovering procedure

WARNING

■

When attempting to free a stuck vehi-

cle

If you choose to push the vehicle back

and forth to free it, make sure the sur-

rounding area is clear to avoid striking

other vehicles, objects or people. The

vehicle may also lunge forward or lunge

back suddenly as it becomes free. Use

extreme caution.

■

When shifting the shift position

Be careful not to shift the shift position

with the accelerator pedal depressed.

This may lead to unexpected rapid accel-

eration of the vehicle that may cause an

accident resulting in death or serious

injury.

NOTICE

■

To avoid damaging the transmission

and other components

●

Avoid spinning the rear wheels and

depressing the accelerator pedal

more than necessary.

●

If the vehicle remains stuck even after

these procedures are performed, the

vehicle may require towing to be freed.

450

8-1. Specifications

8-1.Specifications

: Unladen vehicles

: Without electronically modulated air suspension

: With electronically modulated air suspension

: Except F SPORT models

: F SPORT models

■

Vehicle identification number

The vehicle identification number
(VIN) is the legal identifier for your
vehicle. This is the primary identifica-

tion number for your Lexus. It is used in
registering the ownership of your vehi-
cle.
This number is stamped on the top left

Maintenance data (fuel, oil level, etc.)

Dimensions and weight

Overall length

206.1 in. (5235 mm)

Overall width

74.8 in. (1900 mm)

Overall height

2WD models

57.5 in. (1460 mm)

57.1 in. (1450 mm)

AWD models

57.9 in. (1470 mm)

57.5 in. (1460 mm)

Wheelbase

123.0 in. (3125 mm)

Tread

Front

2WD models

64.2 in. (1630 mm)

AWD models

64.2 in. (1630 mm)

64.4 in. (1635 mm)

Rear

64.4 in. (1635 mm)

63.6 in. (1615 mm)

Vehicle capacity weight
(Occupants + luggage)

870 lb. (395 kg)

Seating capacity

5 (Front 2, Rear 3)

Vehicle identification

451

8-1. Specifications

Vehi

cle

spec

ifi

tions

of the instrument panel.

This number is also stamped under the
right-hand front seat.

This number is also on the Certification

Label.

■

Engine number

The engine number is stamped on the
engine block as shown.

Engine

Model

3.5 L 6-cylinder (V35A-FTS) engine

Type

6-cylinder V type, 4-cycle, gasoline (with
turbocharger)

Bore and stroke

3.37



3.94 in. (85.5



100.0 mm)

Displacement

210.2 cu. in. (3445 cm

)

Valve clearance

Automatic adjustment

Drive belt tension

Automatic adjustment

Fuel

Fuel type

Unleaded gasoline only

452

8-1. Specifications

■

Oil capacity (Drain and refill [Ref-
erence

])

: The engine oil capacity is a reference

quantity to be used when changing the
engine oil. Warm up and turn off the
engine, wait more than 5 minutes, and
check the oil level on the dipstick.

■

Engine oil selection

“Toyota Genuine Motor Oil” is used in
your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil”
or equivalent to satisfy the following
grade and viscosity.
Oil grade: ILSAC GF-6A multigrade
engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good starting
in cold weather.
If SAE 0W-20 is not available, SAE
5W-20 oil may be used. However, it
must be replaced with SAE 0W-20 at

the next oil change.
Recommended viscosity (SAE):

Outside temperature

Oil viscosity (0W-20 is explained here
as an example):
• The 0W in 0W-20 indicates the

characteristic of the oil which allows
cold startability. Oils with a lower
value before the W allow for easier
starting of the engine in cold
weather.

• The 20 in 0W-20 indicates the vis-

cosity characteristic of the oil when
the oil is at high temperature. An oil
with a higher viscosity (one with a
higher value) may be better suited if
the vehicle is operated at high
speeds, or under extreme load con-
ditions.

How to read oil container label:
The International Lubricant Specifica-
tion Advisory Committee (ILSAC)
Certification Mark is added to some oil

Octane Rating

91 (Research Octane Number 96) or higher

Fuel tank capacity
(Reference)

21.7 gal. (82.0 L, 18.0 Imp. gal.)

Lubrication system

With filter



2WD models

6.7 qt. (6.3 L, 5.5 Imp. qt.)



AWD models

7.5 qt. (7.1 L, 6.2 Imp. qt.)

Without fil-

ter



2WD models

6.1 qt. (5.8 L, 5.1 Imp. qt.)



AWD models

7.0 qt. (6.6 L, 5.8 Imp. qt.)

453

8-1. Specifications

icle

ific

atio

containers to help you select the oil you
should use.

Cooling system

Capacity (Reference)



Engine

2WD models: 11.2 qt. (10.6 L, 9.3 Imp. qt.)
AWD models: 11.1 qt. (10.5 L, 9.2 Imp. qt.)



Intercooler

4.5 qt. (4.3 L, 3.8 Imp. qt.)

Coolant type

Use either of the following:



“Toyota Super Long Life Coolant”



Similar high-quality ethylene glycol-based non-silicate,
non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology

Do not use plain water alone.

Ignition system (spark plug)

Make

DENSO EC22HPR-D7

Gap

0.028 in. (0.7 mm)

NOTICE

■

Iridium-tipped spark plugs

Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

454

8-1. Specifications

: The fluid capacity is a reference quantity.

If replacement is necessary, contact your Lexus dealer.

: Your Lexus vehicle is filled with Toyota genuine gear oil at the factory. Use Lexus

approved Toyota genuine 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 Differential Gear Oil” or an equivalent oil of
matching quality to satisfy the above specification. Please contact your Lexus dealer for

Electrical system (battery)

Open voltage at 68°F (20°C):

12.3 V or higher
(Turn the engine switch off and turn on the head-
lights for 20 to 30 seconds.)

Charging rates
Quick charge
Slow charge

15 A max.
5 A max.

Automatic transmission

Fluid capacity

9.5 qt. (9.0 L, 7.9 Imp. qt.)

Fluid type

Toyota Genuine ATF WS

NOTICE

■

Transmission fluid type

Using transmission fluid other than the above type may cause abnormal noise or vibra-

tion, or damage the transmission of your vehicle.

Transfer (AWD models)

Oil capacity

0.74 qt. (0.70 L, 0.62 Imp. qt.)

Oil type and viscosity

Toyota Genuine Transfer gear oil LL 80 or equivalent

Front differential (AWD models)

Oil capacity

0.69 qt. (0.65 L, 0.57 Imp. qt.)

Oil type and viscosity

Toyota Genuine Differential gear oil LT 75W-85
GL-5 or equivalent

455

8-1. Specifications

Vehi

cle

spec

ifi

tions

further details.



2WD models



AWD models

: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory.

Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equivalent oil of
matching quality to satisfy the above specification. Please contact your Lexus dealer for
further details.

: Minimum pedal clearance when depressed with a force of 112 lbf (500 N, 51 kgf) while

the engine is running.
When performing the brake pedal inspection, also be sure to check that the brake sys-
tem warning light is not illuminated when the engine is running. (If the brake system
warning light is illuminated, refer to P.421.)

Rear differential

Oil capacity

0.90 qt. (0.85 L, 0.75 Imp. qt.)

Oil type and viscosity

Toyota Genuine Differential gear oil LT 75W-85
GL-5 or equivalent

Oil capacity

1.42 qt. (1.35 L, 1.19 Imp. qt.)

Oil type and viscosity

Toyota Genuine Differential gear oil LT 75W-85
GL-5 or equivalent

Brakes

Pedal clearance

4.8 in. (121 mm) Min.

4.8 in. (122 mm) Min.

Pedal free play

0.04



0.24 in. (1



6 mm)

Brake pad wear limit

0.04 in. (1 mm)

Parking brake lining wear limit

0.04 in. (1 mm)

Parking brake indicator

When pushing the parking brake switch for 1 to 2
seconds: comes on
When pulling the parking brake switch for 1 to 2
seconds: turns off

Fluid type

FMVSS No.116 DOT 3 or SAE J1703
FMVSS No.116 DOT 4 or SAE J1704

456

8-1. Specifications

: Make sure to confirm that the brake warning light (yellow) does not illuminate. (If the

brake warning light illuminates, refer to P.421.)

: Vehicles without Lexus Safety System + A

: Vehicles with Lexus Safety System + A



19-inch tires



20-inch tires (type A)

Steering

Free play

Less than 1.2 in. (30 mm)

Tires and wheels

Tire size

245/50RF19 101V

Tire inflation pressure
(Recommended cold tire
inflation pressure)

Driving under normal conditions

Front: 36 psi (250 kPa, 2.5 kgf/cm

or bar)

Rear: 36 psi (250 kPa, 2.5 kgf/cm

or bar)

Driving at high speeds above 100 mph (160 km/h) (in
countries where such speeds are permitted by law)

Add 9 psi (60 kPa, 0.6 kgf/cm

or bar) to the front tires and

rear tires. Never exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.

Wheel size



Wheel nut torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

Tire size

245/45R20 99Y

Tire inflation pressure
(Recommended cold tire
inflation pressure)

Driving under normal conditions

Front: 35 psi (240 kPa, 2.4 kgf/cm

or bar)

Rear: 35 psi (240 kPa, 2.4 kgf/cm

or bar)

Driving at high speeds above 137 mph (220 km/h) (in
countries where such speeds are permitted by law)

Add 9 psi (60 kPa, 0.6 kgf/cm

or bar) to the front tires and

rear tires. Never exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.

457

8-1. Specifications

Vehi

cle

spec

ifi

tions



20-inch tires (type B)



20-inch tires (type C)

Wheel size



8 1/2J

Wheel nut torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

Tire size

Front tires: 245/45RF20 99Y
Rear tires: 275/40RF20 102Y

Tire inflation pressure
(Recommended cold tire
inflation pressure)

Driving under normal conditions

Front: 36 psi (250 kPa, 2.5 kgf/cm

or bar)

Rear: 36 psi (250 kPa, 2.5 kgf/cm

or bar)

Driving at high speeds above 137 mph (220 km/h) (in
countries where such speeds are permitted by law)

Add 9 psi (60 kPa, 0.6 kgf/cm

or bar) to the front tires and

rear tires. Never exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.

Wheel size

Front wheels: 20



8 1/2J

Rear wheels: 20



9 1/2J

Wheel nut torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

Tire size

245/45R20 99V

Tire inflation pressure
(Recommended cold tire
inflation pressure)

Driving under normal conditions

Front: 35 psi (240 kPa, 2.4 kgf/cm

or bar)

Rear: 35 psi (240 kPa, 2.4 kgf/cm

or bar)

Driving at high speeds above 100 mph (160 km/h) (in
countries where such speeds are permitted by law)

Add 9 psi (60 kPa, 0.6 kgf/cm

or bar) to the front tires and

rear tires. Never exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.

Wheel size



8 1/2J

Wheel nut torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

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8-1. Specifications



20-inch tires (type D)

Tire size

Front tires: 245/45R20 99V
Rear tires: 275/40R20 102V

Tire inflation pressure
(Recommended cold tire
inflation pressure)

Driving under normal conditions

Front: 36 psi (250 kPa, 2.5 kgf/cm

or bar)

Rear: 36 psi (250 kPa, 2.5 kgf/cm

or bar)

Driving at high speeds above 100 mph (160 km/h) (in
countries where such speeds are permitted by law)

Add 9 psi (60 kPa, 0.6 kgf/cm

or bar) to the front tires and

rear tires. Never exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.

Wheel size

Front wheels: 20



8 1/2J

Rear wheels: 20



9 1/2J

Wheel nut torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

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Gasoline quality

In very few cases, driveability problems may

be caused by the brand of gasoline you are

using. If driveability problems persist, try

changing the brand of gasoline. If this does

not correct the problem, consult your Lexus

dealer.

■

Recommendation of the use of gasoline

containing detergent additives

●

Lexus recommends the use of gasoline

that contains detergent additives to avoid

the build-up of engine deposits.

●

All gasoline sold in the U.S.A. contains

minimum detergent additives to clean

and/or keep clean intake systems, per

EPA’s lowest additives concentration pro-

gram.

●

Lexus strongly recommends the use of

Top Tier Detergent Gasoline. For more

information on Top Tier Detergent Gaso-

line and a list of marketers, please go to

the official website www.toptiergas.com.

■

Recommendation of the use of low

emissions gasoline

Gasolines containing oxygenates such as

ethers and ethanol, as well as reformulated

gasolines, are available in some cities.

These fuels are typically acceptable for use,

providing they meet other fuel require-

ments.
Lexus recommends these fuels, since the

formulations allow for reduced vehicle

emissions.

■

Non-recommendation of the use of

blended gasoline

●

Use only gasoline containing up to 15%

ethanol.

DO NOT use any flex-fuel or gasoline

that could contain more than 15% etha-

nol, including from any pump labeled
E30 (30% ethanol [

]), E50 (50%

ethanol [

]), E85 (85% ethanol [

])

(which are only some examples of fuel

containing more than 15% ethanol).

●

If you use gasohol in your vehicle, be sure

that it has an octane rating no lower than

91.

●

Lexus does not recommend the use of

gasoline containing methanol.

■

Non-recommendation of the use of gas-

oline containing MMT

Some gasoline contains an octane enhanc-

ing additive called MMT (Methylcyclopen-

tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gas-

oline that contains MMT. If fuel containing

MMT is used, your emission control system

may be adversely affected.
The malfunction indicator lamp on the

instrument cluster may come on. If this hap-

pens, contact your Lexus dealer for service.

■

If your engine knocks

●

Consult your Lexus dealer.

●

You may occasionally notice light knock-

ing for a short time while accelerating or

Fuel information

You must only use unleaded gaso-
line.
Select premium unleaded gasoline
with an octane rating of 91
(Research Octane Number 96) or
higher required for optimum
engine performance and fuel econ-
omy.
If the octane rating is less than 91,
damage to the engine may occur
and may void the vehicle warranty.

At minimum, the gasoline you use
should meet the specifications of
ASTM D4814 in the U.S.A..

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8-1. Specifications

driving uphill. This is normal and there is

no need for concern.

NOTICE

■

Notice on fuel quality

●

Do not use improper fuels. If improper

fuels are used, the engine will be dam-

aged.

●

Do not use leaded gasoline.

Leaded gasoline can cause damage to

your vehicle’s three-way catalytic con-

verters causing the emission control

system to malfunction.

●

Do not use gasohol other than the type

previously stated.

Other gasohol may cause fuel system

damage or vehicle performance prob-

lems.

●

Using unleaded gasoline with an

octane number or rating lower than

the level previously stated may cause

persistent heavy knocking.

At worst, this may lead to engine dam-

age and will void the vehicle warranty.

■

When refueling with gasohol

Take care not to spill gasohol. It can dam-

age your vehicle’s paint.

■

Fuel-related poor driveability

If poor driveability (poor hot starting,

vaporization, engine knocking, etc.) is

encountered after using a different type

of fuel, discontinue the use of that type of

fuel.

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Tire size (



P.462)

Run-flat tire (RFT) (



P.433)

This vehicle is equipped with run-flat tires (RFT). A

mark is molded on the

sidewall of the run-flat tire.

DOT and Tire Identification Number (TIN) (



P.462)

Location of treadwear indicators (



P.387)

Tire ply composition and materials

Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a tire.

Radial tires or bias-ply tires

A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply tire.

TUBELESS or TUBE TYPE

A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire has a
tube inside the tire and the tube maintains the air pressure.

Load limit at maximum cold tire inflation pressure (



P.387)

Maximum cold tire inflation pressure (



P.456)

This means the pressure to which a tire may be inflated.

Uniform tire quality grading

For details, see “Uniform Tire Quality Grading” that follows.

Summer tires or all season tires (



P.387)

Tire information

Typical tire symbols

A
B

C
D

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8-1. Specifications

An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer tire.



Type A

DOT symbol

Tire Identification Number (TIN)
Tire manufacturer’s identification
mark
Tire size code
Manufacturer’s optional tire type
code (3 or 4 letters)
Manufacturing week
Manufacturing year

: The DOT symbol certifies that the tire

conforms to applicable Federal Motor
Vehicle Safety Standards.



Type B

DOT symbol

Tire Identification Number (TIN)
Tire manufacturer’s identification
mark
Manufacturer’s code
Manufacturing week
Manufacturing year

: The DOT symbol certifies that the tire

conforms to applicable Federal Motor
Vehicle Safety Standards.

■

Typical tire size information

The illustration indicates typical tire
size.

Tire use (P = Passenger car, T =
Temporary use)
Section width (millimeters)
Aspect ratio (tire height to section
width)
Tire construction code (R = Radial,
D = Diagonal)
Run-flat tire code
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol (alphabet with one

Typical DOT and Tire Identifica-
tion Number (TIN)

A
B
C

Tire size

B
C

E
F

B
C

E
F

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letter)

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Tire dimensions

Section width
Tire height
Wheel diameter

Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer

This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation.
It provides the purchasers and/or pro-
spective purchasers of Lexus vehicles
with information on uniform tire quality
grading.

Your Lexus dealer will help answer any
questions you may have as you read this
information.

■

DOT quality grades

All passenger vehicle tires must con-
form to Federal Safety Requirements in
addition to these grades. Quality
grades can be found where applicable
on the tire sidewall between tread
shoulder and maximum section width.

For example: Treadwear 200 Traction AA
Temperature A

■

Treadwear

The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.

For example, a tire graded 150 would wear
one and a half (1 - 1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use.
Performance may differ significantly from
the norm due to variations in driving habits,
service practices and differences in road
characteristics and climate.

Tire section names

A
B
C

A
B
C
D

E
F

Uniform Tire Quality Grading

464

8-1. Specifications

■

Traction AA, A, B, C

The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.

A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
cornering (turning) traction.

■

Temperature A, B, C

The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat

when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.

Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudden tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Federal Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades of a tire
assume that it is properly inflated and not
overloaded.
Excessive speed, underinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.

Glossary of tire terminology

Tire related term

Meaning

Cold tire inflation pressure

Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition

Maximum inflation pressure

The maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire

Recommended inflation pressure

Cold tire inflation pressure recommended by a
manufacturer

Accessory weight

The combined weight (in excess of those standard
items which may be replaced) of automatic trans-
mission, power steering, power brakes, power win-
dows, power seats, radio and heater, to the extent
that these items are available as factory-installed
equipment (whether installed or not)

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Curb weight

The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil
and coolant, and if so equipped, air conditioning
and additional weight optional engine

Maximum loaded vehicle weight

The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

Normal occupant weight

150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1

that fol-

lows

Occupant distribution

Distribution of occupants in a vehicle as specified in
the third column of Table 1

below

Production options weight

The combined weight of installed regular produc-
tion options weighing over 5 lb. (2.3 kg) in excess of
the standard items which they replace, not previ-
ously considered in curb weight or accessory
weight, including heavy duty brakes, ride levelers,
roof rack, heavy duty battery, and special trim

Rim

A metal support for a tire or a tire and tube assem-
bly upon which the tire beads are seated

Rim diameter (Wheel diameter)

Nominal diameter of the bead seat

Rim size designation

Rim diameter and width

Rim type designation

The industry manufacturer’s designation for a rim
by style or code

Rim width

Nominal distance between rim flanges

Vehicle capacity weight (Total load
capacity)

The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle’s designated seating capacity

Vehicle maximum load on the tire

The load on an individual tire that is determined by
distributing to each axle its share of the maximum
loaded vehicle weight, and dividing by two

Tire related term

Meaning

466

8-1. Specifications

Vehicle normal load on the tire

The load on an individual tire that is determined by
distributing to each axle its share of curb weight,
accessory weight, and normal occupant weight
(distributed in accordance with Table 1

below), and

dividing by two

Weather side

The surface area of the rim not covered by the
inflated tire

Bead

The part of the tire that is made of steel wires,
wrapped or reinforced by ply cords and that is
shaped to fit the rim

Bead separation

A breakdown of the bond between components in
the bead

Bias ply tire

A pneumatic tire in which the ply cords that extend
to the beads are laid at alternate angles substan-
tially less than 90 degrees to the centerline of the
tread

Carcass

The tire structure, except tread and sidewall rubber
which, when inflated, bears the load

Chunking

The breaking away of pieces of the tread or sidewall

Cord

The strands forming the plies in the tire

Cord separation

The parting of cords from adjacent rubber com-
pounds

Cracking

Any parting within the tread, sidewall, or innerliner
of the tire extending to cord material

A pneumatic tire with an inverted flange tire and rim
system in which the rim is designed with rim flanges
pointed radially inward and the tire is designed to fit
on the underside of the rim in a manner that
encloses the rim flanges inside the air cavity of the
tire

Extra load tire

A tire designed to operate at higher loads and at
higher inflation pressures than the corresponding
standard tire

Groove

The space between two adjacent tread ribs

Innerliner

The layer(s) forming the inside surface of a tubeless
tire that contains the inflating medium within the tire

Tire related term

Meaning

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Innerliner separation

The parting of the innerliner from cord material in
the carcass

Intended outboard sidewall

(a) The sidewall that contains a whitewall, bears
white lettering, or bears manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other sidewall
of the tire, or
(b) The outward facing sidewall of an asymmetrical
tire that has a particular side that must always face
outward when mounted on a vehicle

Light truck (LT) tire

A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipur-
pose passenger vehicles

Load rating

The maximum load that a tire is rated to carry for a
given inflation pressure

Maximum load rating

The load rating for a tire at the maximum permissi-
ble inflation pressure for that tire

Maximum permissible inflation pres-
sure

The maximum cold inflation pressure to which a tire
may be inflated

Measuring rim

The rim on which a tire is fitted for physical dimen-
sion requirements

Open splice

Any parting at any junction of tread, sidewall, or
innerliner that extends to cord material

Outer diameter

The overall diameter of an inflated new tire

Overall width

The linear distance between the exteriors of the
sidewalls of an inflated tire, including elevations due
to labeling, decorations, or protective bands or ribs

Passenger car tire

A tire intended for use on passenger cars, multipur-
pose passenger vehicles, and trucks, that have a
gross vehicle weight rating (GVWR) of 10,000 lb.
or less.

Ply

A layer of rubber-coated parallel cords

Ply separation

A parting of rubber compound between adjacent
plies

Tire related term

Meaning

468

8-1. Specifications

Pneumatic tire

A mechanical device made of rubber, chemicals,
fabric and steel or other materials, that, when
mounted on an automotive wheel, provides the
traction and contains the gas or fluid that sustains
the load

Radial ply tire

A pneumatic tire in which the ply cords that extend
to the beads are laid at substantially 90 degrees to
the centerline of the tread

Reinforced tire

A tire designed to operate at higher loads and at
higher inflation pressures than the corresponding
standard tire

Section width

The linear distance between the exteriors of the
sidewalls of an inflated tire, excluding elevations
due to labeling, decoration, or protective bands

Sidewall

That portion of a tire between the tread and bead

Sidewall separation

The parting of the rubber compound from the cord
material in the sidewall

Snow tire

A tire that attains a traction index equal to or
greater than 110, compared to the ASTM E-1136
Standard Reference Test Tire, when using the snow
traction test as described in ASTM F-1805-00,
Standard Test Method for Single Wheel Driving
Traction in a Straight Line on Snow-and Ice-Cov-
ered Surfaces, and which is marked with an Alpine

Symbol (

) on at least one sidewall

Test rim

The rim on which a tire is fitted for testing, and may
be any rim listed as appropriate for use with that tire

Tread

That portion of a tire that comes into contact with
the road

Tread rib

A tread section running circumferentially around a
tire

Tread separation

Pulling away of the tread from the tire carcass

Tire related term

Meaning

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: Table 1 -Occupant loading and distribution for vehicle normal load for various desig-

nated seating capacities

Treadwear indicators (TWI)

The projections within the principal grooves
designed to give a visual indication of the degrees
of wear of the tread

Wheel-holding fixture

The fixture used to hold the wheel and tire assembly
securely during testing

Tire related term

Meaning

Designated seating capac-

ity, Number of occupants

Vehicle normal load, Num-

ber of occupants

Occupant distribution in a

normally loaded vehicle

2 through 4

2 in front

5 through 10

2 in front, 1 in second seat

11 through 15

2 in front, 1 in second seat, 1 in

third seat, 1 in fourth seat

16 through 20

2 in front, 2 in second seat, 2

in third seat, 1 in fourth seat

Lexus LS500 (2023 year). Manual in english - page 14