Lexus LX570 (2021 year). Manual in english - page 29

The coolant level is satisfactory if it is between the “F” and “L” lines on the reser-
voir when the engine is cold.

Reservoir cap
“F” line
“L” line

If the level is on or below the “L” line, add

coolant up to the “F” line.

■

Coolant selection

Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol-

based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid

organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50 % coolant and 50 % deion-

ized water. (Minimum temperature: -31



F [-35



C])

Canada: “Toyota Super Long Life Coolant” is a mixture of 55 % coolant and 45 % deion-

ized water. (Minimum temperature: -44



F [-42



C])

For more details about engine coolant, contact your Lexus dealer.

■

If the coolant level drops within a short time of replenishing

Visually check the radiator, hoses, engine coolant reservoir cap, radiator cap, drain cock

and water pump. If you cannot find a leak, have your Lexus dealer test the cap and check

for leaks in the cooling system.

Engine coolant

2
3

WARNING

■

When the engine is hot

Do not remove the radiator cap, or the coolant reservoir cap.

The cooling system may be under pressure and may spray hot coolant if the cap is

removed, causing serious injuries, such as burns.

483

Main

Check the radiator and condenser and clear any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condi-
tion, have your vehicle checked by your Lexus dealer.

■

Checking fluid level

The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.

NOTICE

■

When adding coolant

Coolant is neither plain water nor straight antifreeze. The correct mixture of water and

antifreeze must be used to provide proper lubrication, corrosion protection and cool-

ing. Be sure to read the antifreeze or coolant label.

■

If you spill coolant

Be sure to wash it off with water to prevent it from damage to parts or paint.

Radiator and condenser

WARNING

■

When the engine is hot

Do not touch the radiator or condenser as they may be hot and cause serious injuries,

such as burns.

Brake fluid

484

■

Adding fluid

Make sure to check the fluid type and prepare the necessary item.

■

Refilling brake fluid

Turn the engine switch off.
Depress the brake pedal more than 40 times.
Remove the reservoir cap by hand. Add brake fluid up to the “MAX” line.

If you do not follow the procedure above, the reservoir may overflow.

■

Brake fluid can absorb moisture from the air

Excess moisture in the fluid can cause a dangerous loss of braking efficiency. Use only

newly opened brake fluid.

Fluid type

FMVSS No.116 DOT 3 or SAE J1703 brake fluid

Items

Clean funnel

WARNING

■

When filling the reservoir

Take care because brake fluid can harm your hands or eyes and damage painted sur-

faces. If fluid gets on your eyes, flush the affected area with clean water immediately. If

you still experience discomfort, see a doctor.

NOTICE

■

If the fluid level is low or high

It is normal for the brake fluid level to go down slightly as the brake pads wear or when

the fluid level in the accumulator is high. If the reservoir needs frequent refilling, it may

indicate a serious problem.

2
3

485

Main

■

Fluid level

The fluid level should be within the appropriate range.

Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)

Hot:

The vehicles has been driven around 50 mph (80 km/h) for 20 min-
utes, or slightly longer in frigid temperatures.
(Fluid temperature, 140



F - 175



F [60



C - 80



C]).

Cold: The engine has not been run for about 5 hours.

(Room temperature, 50



F - 85



F [10



C - 30



C]).

■

Checking the fluid level

Make sure to check the fluid type and prepare the necessary items.

Clean all dirt off the reservoir.
Remove the cap by turning it counterclockwise.
Wipe the dipstick clean.
Reinstall the cap and remove it again.
Check the fluid level.

Power steering fluid

2
3
4

Fluid type

Automatic transmission fluid DEXRON

II or III

Items

Rag or paper, clean funnel (only for adding fluid)

2
3
4
5

486

Check the battery as follows.

■

Battery exterior

Make sure that the battery terminals are not corroded and that there are no
loose connections, cracks, or loose clamps.

Terminals
Hold-down clamp

WARNING

■

When checking the reservoir

Take care as the reservoir may be hot.

NOTICE

■

When adding fluid

Avoid overfilling, or the power steering may be damaged.

■

After replacing the reservoir cap

Check the steering box case, vane pump and hose connections for leaks or damage.

Battery

487

Main

■

Before recharging

When recharging, the battery produces hydrogen gas which is flammable and explosive.

Therefore, observe the following before recharging:

●

If recharging with the battery installed on the vehicle, be sure to disconnect the ground

cable.

●

Make sure the power switch on the charger is off when connecting and disconnecting

the charger cables to the battery.

■

After recharging/reconnecting the battery

The engine may not start. Follow the procedure below to initialize the system.

Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.

●

Unlocking the doors using the smart access system with push-button start may not be

possible immediately after reconnecting the battery. If this happens, use the wireless

remote control or the mechanical key to lock/unlock the doors.

●

Start the engine with the engine switch in ACCESSORY mode. The engine may not

start with the engine switch turned off. However, the engine will operate normally from

the second attempt.

●

The engine switch mode is recorded by the vehicle. If the battery is reconnected, the

vehicle will return the engine switch mode to the status it was in before the battery was

disconnected. Make sure to turn off the engine before disconnect the battery. Take

extra care when connecting the battery if the engine switch mode prior to discharge is

unknown.

If the engine will not start even after multiple attempts, contact your Lexus dealer.

WARNING

■

Chemicals in the battery

Batteries contain poisonous and corrosive sulfuric acid and may produce hydrogen

gas which is flammable and explosive. To reduce the risk of death or serious injury, take

the following precautions while working on or near battery:

●

Do not cause sparks by touching the battery terminals with tools.

●

Do not smoke or light a match near the battery.

●

Avoid contact with eyes, skin and clothes.

●

Never inhale or swallow electrolyte.

●

Wear protective safety glasses when working near the battery.

●

Keep children away from the battery.

■

Where to safely charge the battery

Always charge the battery in an open area. Do not charge the battery in a garage or

closed room where there is not sufficient ventilation.

2
3

488

WARNING

■

How to recharge the battery

Only perform a slow charge (5A or less). The battery may explode if charged at a

quicker rate.

■

Emergency measures regarding electrolyte

●

If electrolyte gets in your eyes

Flush your eyes with clean water for at least 15 minutes and get immediate medical

attention. If possible, continue to apply water with a sponge or cloth while traveling to

the nearest medical facility.

●

If electrolyte gets on your skin

Wash the affected area thoroughly. If you feel pain or burning, get medical attention

immediately.

●

If electrolyte gets on your clothes

It can soak through clothing on to your skin. Immediately take off the clothing and fol-

low the procedure above if necessary.

●

If you accidentally swallow electrolyte

Drink a large quantity of water or milk. Get emergency medical attention immedi-

ately.

NOTICE

■

When recharging the battery

Never recharge the battery while the engine is running. Also, be sure all accessories

are turned off.

489

Main

If any washer does not work or “Wind-
shield Washer Fluid Low” appears on
the multi-information display, the
washer tank may be empty. Add
washer fluid.

Washer fluid

WARNING

■

When adding washer fluid

Do not add washer fluid when the engine is hot or running as washer fluid contains

alcohol and may catch fire if spilled on the engine etc.

NOTICE

■

Do not use any fluid other than washer fluid

Do not use soapy water or engine antifreeze instead of washer fluid.

Doing so may cause streaking on the vehicle’s painted surface, as well as damaging the

pump leading to problems of the washer fluid not spraying.

■

Diluting washer fluid

Dilute washer fluid with water as necessary.

Refer to the freezing temperatures listed on the label of the washer fluid bottle.

490

Tires

Check if the treadwear indicators are showing on the tires. Also check the tires
for uneven wear, such as excessive wear on one side of the tread. Check the
spare tire condition and pressure if not rotated.

New tread
Worn tread
Treadwear indicator

The location of treadwear indicators is shown by a “TWI” or “

” mark, etc., molded

on the sidewall of each tire.
Replace the tires if the treadwear indicators are showing on a tire.

Rotate the tires in the order shown.

To equalize tire wear and extend tire life,

Lexus recommends that tire rotation is

carried out at the same interval as tire

inspection.
Do not fail to initialize the tire pressure

warning system after tire rotation.

Replace or rotate tires in accordance with maintenance schedules and tread-
wear.

Checking tires

Tire rotation

2
3

Front

491

Main

Your Lexus 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 predetermined level, the driver is warned by
a screen display and a warning light. (



P. 526)

●

The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. (



P. 96)

◆

Installing tire pressure warning valves and transmitters

When replacing tires or wheels, tire pressure warning valves and transmitters
must also be installed.
When new tire pressure warning 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. Have tire pressure warning valve
and transmitter ID codes registered by your Lexus dealer. (



P. 492)

◆

Initializing the tire pressure warning system

■

The tire pressure warning system must be initialized in the following circum-
stances:

●

When rotating the tires in above situation.

●

When the set tire pressure has been changed before towing. (



P. 569)

When the tire pressure warning system is initialized, the current tire inflation
pressure is set as the benchmark pressure.

Tire pressure warning system

492

■

How to initialize the tire pressure warning system

Park the vehicle in safe place and turn the engine switch to off.

Initialization cannot be performed while the vehicle is moved.

Adjust the tire inflation pressure to the specified cold tire inflation pressure
level. (



P. 569)

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.

Turn the engine switch to IGNITION ON mode.
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times.

“--” will be displayed for inflation

pressure of each tire on the multi-

information display while the tire

pressure warning system determines

the position of each tire.
When position of each tire is determined, the inflation pressure of each tire will be

displayed on the multi-information display.

Drive the vehicle at approximately 25 mph (40 km/h) or more for approx-
imately 10 minutes.

When initialization is complete, the inflation pressure of each tire will be displayed

on the multi-information display.
Initialization will take longer than approximately 10 minutes if the vehicle is

stopped for a long time, such as at traffic signals.

◆

Registering ID codes

The tire pressure warning valve and transmitter is equipped with a unique ID
code. When replacing a tire pressure warning valve and transmitter, it is nec-
essary to register the ID code of tire pressure warning valve and transmitter.
Have the ID code registered by your Lexus dealer.

493

Main

■

When to replace your vehicle’s tires

Tires should be replaced if:

●

The treadwear indicators are showing on a tire.

●

You have tire damage such as cuts, splits, cracks deep enough to expose the fabric, and

bulges indicating internal damage

●

A tire goes flat repeatedly or cannot be properly repaired due to the size or location of

a cut or other damage

If you are not sure, consult with your Lexus dealer.

■

Replacing tires and wheels

If the ID code of the tire pressure warning valve and transmitter is not registered, the tire

pressure warning system will not work properly. After driving for about 20 minutes, the

tire pressure warning light comes on after blinking for 1 minute to indicate a system mal-

function.

■

Tire life

Any tire over 6 years old must be checked by a qualified technician even if it has seldom

or never been used or damage is not obvious.

■

Routine tire inflation pressure checks

The tire pressure warning system does not replace routine tire inflation pressure checks.

Make sure to check tire inflation pressure as part of your routine of daily vehicle checks.

■

Maximum load of tire

Check that the number given by dividing the maximum load by 1.10 of the replacement

tire is greater than 1/2 of the Gross Axle Weight Ratings (GAWR) of either the front axle

or the rear axle, whichever is greater.
For the GAWR, see the Certification Label. For

the maximum load of the tire, see the load limit

at maximum cold tire inflation pressure men-

tioned on the sidewall of the tire. (



P. 573)

494

■

Tire types

●

Summer tires
Summer tires are high-speed performance tires best suited to highway driving under

dry conditions. Since summer tires do not have the same traction performance as

snow tires, summer tires are inadequate for driving on snow-covered or icy roads. For

driving on snow-covered roads or icy roads, the use of snow tires is recommended.

When installing snow tires, be sure to replace all four tires.

●

All season tires
All season tires are designed to provide better traction in snow and to be adequate for

driving in most winter conditions, as well as for use year round. All season tires, how-

ever, do not have adequate traction performance compared with snow tires in heavy

or loose snow. Also, all season tires fall short in acceleration and handling perfor-

mance compared with summer tires in highway driving.

●

Snow tires
For driving on snow-covered roads or icy roads, we recommend using snow tires. If

you need snow tires, select tires of the same size, construction and load capacity as the

originally installed tires. Since your vehicle has radial tires as original equipment, make

sure your snow tires also have radial construction. Do not install studded tires without

first checking local regulations for possible restriction. Snow tires should be installed

on all wheels. (



P. 390)

■

Initializing the tire pressure warning system

Initialize the tire pressure warning system with the tire inflation pressure adjusted to the

specified level.

■

If the tread on snow tires wears down below 0.16 in. (4 mm)

The effectiveness of the tires as snow tires is lost.

■

If you press the tire pressure warning reset switch accidentally

If initialization is performed, adjust the tire inflation pressure to the specified level and ini-

tialize the tire pressure warning system again.

■

Situations in which the tire pressure warning system may not operate properly

●

In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.

• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.

• A tire has been replaced with a tire that is not of the specified size.

• Tire chains etc. are equipped.

• An auxiliary-supported run-flat tire is equipped.

• If a window tint that affects the radio wave signals is installed.

• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel

housings.

• If the tire inflation pressure is extremely higher than the specified level.

• If the spare tire is in a location subject to poor radio wave signal reception.

• If a large metallic object which can interfere with signal reception is put near the

spare tire.

• If tires not equipped with the tire pressure warning valves and transmitters are used.

• If the ID code on the tire pressure warning valves and transmitters is not registered

in the tire pressure warning computer.

495

Main

●

Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-

port or other facility that generates strong radio waves or electrical noise

• When carrying a portable radio, cellular phone, cordless phone or other wireless

communication device

If tire position information is not correctly displayed due to the radio wave conditions,

the display may be corrected by driving and changing the radio wave conditions.

●

When the vehicle is parked, the time taken for the warning to start or go off could be

extended.

●

When tire inflation pressure declines rapidly for example when a tire has burst, the

warning may not function.

■

The initialization operation

●

Make sure to carry out initialization after adjusting the tire inflation pressure.

Also, make sure the tires are cold before carrying out initialization or tire inflation pres-

sure adjustment.

●

If you have accidentally turned the engine switch off during initialization, it is not neces-

sary to press the reset switch again as initialization will restart automatically when the

engine switch has been turned to IGNITION ON mode for the next time.

●

If you accidentally press the reset switch when initialization is not necessary, adjust the

tire inflation pressure to the specified level when the tires are cold, and conduct initial-

ization again.

●

While the position of each tire is being determined and the inflation pressures are not

being displayed on the multi-information display, if the inflation pressure of a tire drops,

the tire pressure warning light will come on.

496

■

When the initialization of the tire pressure warning system has failed

Initialization can be completed in a few minutes. However, in the following cases, the set-

tings have not been recorded and the system will not operate properly. If repeated

attempts to record tire inflation pressure settings are unsuccessful, have the vehicle

inspected by your Lexus dealer.

●

When operating the tire pressure warning reset switch, the tire pressure warning light

does not blink 3 times and the setting message does not appear on the multi-informa-

tion display.

●

After carrying out the initialization procedure, the tire pressure warning light blinks for 1

minute then stays on after driving for about 20 minutes.

■

Tire pressure warning system certification



For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico

497

Main