LEXUS ES 350 (2019 year). Instruction - part 20


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LEXUS ES 350 (2019 year). Instruction - part 20




6-3. Do-it-yourself maintenance

Fuse box (


Engine oil filler cap (


Engine oil level dipstick (


Battery (


Brake fluid reservoir (


Radiator (


Electric cooling fan

Condenser (


Engine coolant reservoir (


Washer fluid tank (


With the engine at operating tempera-
ture and turned off, check the oil level 

on the dipstick.

Checking the engine oil


Park the vehicle on level ground.

After warming up the engine and turning it 

Engine compartment








Checking and adding the engine 


6-3. Do-it-yourself maintenance


Maintenance and


off, wait more than 5 minutes for the oil to 

drain back into the bottom of the engine.


Holding a rag under the end, pull 
the dipstick out.


Wipe the dipstick clean.


Reinsert the dipstick fully.


Holding a rag under the end, pull 
the dipstick out and check the oil 




The shape of the dipstick may differ 
depending on the type of vehicle or 


Wipe the dipstick and reinsert it 

Checking the oil type and prepar-
ing the items needed

Make sure to check the oil type and 

prepare the items needed before add-
ing oil.
 Engine oil selection


 Oil quantity (Low 

 Full)

1.9 qt. (1.8 L, 1.6 Imp.qt.)

 Item

Clean funnel

Adding engine oil

If the oil level is below or near the low 
level mark, add engine oil of the same 
type as that already in the engine.


Remove the oil filler cap by turning 
it counterclockwise.


Add engine oil slowly, checking the 


Install the oil filler cap by turning it 

Engine oil consumption

A certain amount of engine oil will be con-

sumed while driving. In the following situa-

tions, oil consumption may increase, and 

engine oil may need to be refilled in 

between oil maintenance intervals.

When the engine is new, for example 

directly after purchasing the vehicle or 

after replacing the engine

If low quality oil or oil of an inappropriate 

viscosity is used



6-3. Do-it-yourself maintenance

When driving at high engine speeds or 

with a heavy load, or when driving while 

accelerating or decelerating frequently

When leaving the engine idling for a long 

time, or when driving frequently through 

heavy traffic

After changing the engine oil

The engine oil maintenance data should be 

reset. Perform the following procedures:


While the vehicle is stopped, press 

 of the meter control switches.




 of the meter control 

switches, and select 





 of the meter control 

switches, select “Vehicle Settings”, and 

then press “OK”.




 of the meter control 

switches, select “Oil Maintenance”, and 

then press “OK”.


Select “Yes” and then press “OK”.

A message will be displayed on the multi-

information display.

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


Used engine oil

Used engine oil contains potentially 

harmful contaminants which may 

cause skin disorders such as inflamma-

tion and skin cancer, so care should be 

taken to avoid prolonged and 

repeated contact. To remove used 

engine oil from your skin, wash thor-

oughly with soap and water.

Dispose of used oil and filters only in a 

safe and acceptable manner. Do not 

dispose of used oil and filters in house-

hold trash, in sewers or onto the 


Call your Lexus dealer, service station 

or auto parts store for information 

concerning recycling or disposal.

Do not leave used engine oil within the 

reach of children.


To prevent serious engine damage

Check the oil level on a regular basis.

When replacing the engine oil

Be careful not to spill engine oil on the 

vehicle components.

Avoid overfilling, or the engine could 

be damaged.

Check the oil level on the dipstick 

every time you refill the vehicle.

Be sure the engine oil filler cap is prop-

erly tightened.

Checking the engine coolant



6-3. Do-it-yourself maintenance


Maintenance and



“Toyota Super Long Life Coolant” is a mix-

ture of 50% coolant and 50% deionized 

water. (Minimum temperature: -31°F [-


“Toyota Super Long Life Coolant” is a mix-

ture of 55% coolant and 45% deionized 

water. (Minimum temperature: -44°F [-

For more details about engine coolant, con-

tact your Lexus dealer.

If the coolant level drops within a short 

time of replenishing

Visually check the radiator, hoses, engine 

coolant reservoir cap, drain cock and water 


If you cannot find a leak, have your Lexus 

dealer test the cap and check for leaks in 

the cooling system.

Check the radiator and condenser and 

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

Checking fluid level

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

Adding fluid

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

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

 Item

Clean funnel


When the engine is hot

Do not remove the engine coolant reser-

voir cap or the radiator cap. (


The cooling system may be under pres-

sure and may spray hot coolant if the cap 

is removed, causing serious injuries, such 

as burns.


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 cooling. Be sure to read 

the antifreeze or coolant label.

If you spill coolant

Be sure to wash it off with water to pre-

vent it from damaging parts or paint.

Checking the radiator and con-


When the engine is hot

Do not touch the radiator or condenser 

as they may be hot and cause serious 

injuries, such as burns.

Checking and adding the brake 


6-3. Do-it-yourself maintenance

Brake fluid can absorb moisture from 

the air

Excess moisture in the brake fluid can cause 

a dangerous loss of braking efficiency. Use 

only newly opened brake fluid.

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 


Hold-down clamp

Before recharging

When recharging, the battery produces 

hydrogen gas which is flammable and 

explosive. Therefore, observe the following 

precautions 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 char-

ger is off when connecting and discon-

necting the charger cables to the battery.

After recharging/reconnecting the bat-


The engine may not start. Follow the pro-

cedure 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 recon-

necting 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 nor-

mally 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 


When filling the reservoir

Take care as brake fluid can harm your 

hands and eyes and damage painted sur-


If fluid gets on your hands or in your eyes, 

flush the affected area with clean water 

If you still experience discomfort, see a 



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 out 

or when the fluid level in the accumulator 

is high.

If the reservoir needs frequent refilling, 

there may be a serious problem.

Checking the battery



6-3. Do-it-yourself maintenance


Maintenance and


turn off the power 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 at all methods above, contact your 
Lexus dealer.

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


Chemicals in the battery

Battery contains poisonous and corro-

sive sulfuric acid and may produce 

hydrogen gas which is flammable and 

explosive. To reduce the risk of death or 

serious injury, take the following precau-

tions while working on or near the bat-


Do not cause sparks by touching the 

battery terminals with tools.

Do not smoke or light a match near the 


Avoid contact with eyes, skin and 


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 

insufficient ventilation.

How to recharge the battery

Only perform a slow charge (5 A or 

less). The battery may explode if charged 

at a quicker rate.

Emergency measures regarding 


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 


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 follow the procedure above if nec-


If you accidentally swallow electrolyte

Drink a large quantity of water or milk. 

Get emergency medical attention 


When there is insufficient battery 


Do not use if there is insufficient fluid in 

the battery. There is a possible danger 

that the battery may explode.


When recharging the battery

Never recharge the battery while the 

engine is running. Also, be sure all acces-

sories are turned off.

When adding distilled water

Avoid overfilling. Water spilled during 

battery recharging may cause corrosion.

Adding the washer fluid


6-3. Do-it-yourself maintenance

washer fluid.

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 into the sidewall of each tire.
Replace the tires if the treadwear indica-


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.


Do not use any fluid other than 

washer fluid

Do not use soapy water or engine anti-

freeze instead of washer fluid.

Doing so may cause streaking on the 

vehicle’s painted surfaces, as well as 

damaging the pump leading to problems 

of the washer fluid not spraying.

Diluting washer fluid

Dilute washer fluid with water as neces-


Refer to the freezing temperatures listed 

on the label of the washer fluid bottle.


Replace or rotate tires in accor-
dance with maintenance schedules 
and treadwear.

Checking tires



6-3. Do-it-yourself maintenance


Maintenance and


tors are showing on a tire.

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 loca-

tion of a cut or other damage

If you are not sure, consult your Lexus 

Vehicles with 17-inch tires:

The wheel angle differs from vehicles 
equipped with 18-inch/19-inch tires. There-
fore, 18-inch/19-inch tires cannot be 
installed, as sufficient gaps with surrounding 
parts cannot be ensured.

Tire life

Any tire over 6 years old must be checked 

by a qualified technician even if it has sel-

dom or never been used or damage is not 


Low profile tires (18-inch/19-inch tires)

Generally, low profile tires will wear more 

rapidly and tire grip performance will be 

reduced on snowy and/or icy roads when 

compared to standard tires. Be sure to use 

snow tires on snowy and/or icy roads and 

drive carefully at a speed appropriate for 

road and weather conditions.

Maximum load of tire

Check that the maximum load 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, which-

ever 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 mentioned on the sidewall of the 

tire. (


Tire types

Summer tires

Summer tires are high-speed perfor-

mance tires best suited to highway driv-

ing under dry conditions. Since summer 

tires do not have the same traction per-

formance 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 ade-

quate for driving in most winter condi-

tions as well as for use year-round. All 

season tires, however, do not have ade-

quate traction performance compared 

with snow tires in heavy or loose snow. 

Also, all season tires fall short in accelera-

tion and handling performance com-

pared with summer tires in highway 


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 equip-

ment, make sure your snow tires also 

have radial construction. Do not install 

studded tires without first checking local 

regulations for possible restrictions. 

Snow tires should be installed on all 

wheels. (


If the tread on snow tires wears down 

below 0.16 in. (4 mm)

The effectiveness of the tires as snow tires is 



6-3. Do-it-yourself maintenance

Rotate the tires in the order shown.

To equalize tire wear and extend tire life, 
Lexus recommends that tire rotation is car-
ried out at the same interval as tire inspec-
Do not fail to initialize the tire pressure 
warning system after tire rotation.

When rotating the tires

Make sure that the engine switch is off. If the 

tires are rotated while the engine switch is in 

IGNITION ON mode, the tire position 

information will not be updated.
If this accidentally occurs, either turn the 

engine switch to off and then to IGNITION 

ON mode, or initialize the system after 

checking that the tire pressure is properly 



When inspecting or replacing tires

Observe the following precautions to 

prevent accidents.

Failure to do so may cause damage to 

parts of the drivetrain as well as danger-

ous handling characteristics, which may 

lead to an accident resulting in death or 

serious injury.

Do not mix tires of different makes, 

models or tread patterns.

Also, do not mix tires of remarkably 

different treadwear.

Do not use tire sizes other than those 

recommended by Lexus.

Do not mix differently constructed 

tires (radial, bias-belted or bias-ply 


Do not tow if your vehicle has a com-

pact spare tire installed.

Do not mix summer, all season and 

snow tires.

Do not use tires that have been used 

on another vehicle.

Do not use tires if you do not know 

how they were used previously.


Driving on rough roads

Take particular care when driving on 

roads with loose surfaces or potholes.

These conditions may cause losses in tire 

inflation pressure, reducing the cushion-

ing ability of the tires. In addition, driving 

on rough roads may cause damage to 

the tires themselves, as well as the vehi-

cle’s wheels and body.

Low profile tires (18-inch/19-inch 


Low profile tires may cause greater dam-

age than usual to the tire wheel when 

sustaining impact from the road surface. 

Therefore, pay attention to the following:

Be sure to use proper tire inflation 

pressure. If tires are under-inflated, 

they may be damaged more severely.

Avoid potholes, uneven pavement, 

curbs and other road hazards. Failure 

to do so may lead to severe tire and 

wheel damage.

If tire inflation pressure of each tire 

becomes low while driving

Do not continue driving, or your tires 

and/or wheels may be ruined.

Tire rotation


6-3. Do-it-yourself maintenance


Maintenance and


Your vehicle is equipped with a tire 
pressure warning system that uses tire 
pressure warning valves and transmit-
ters 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. (


 The tire pressure detected by the 

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


The illustration used is intended as an 
example, and may differ from the image 
that is actually displayed on the multi-infor-
mation display.

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.

Tire inflation pressure

It may take a few minutes to display the 

tire inflation pressure after the engine 

switch is turned to IGNITION ON mode.

It may also take a few minutes to display 

the tire inflation pressure after inflation 

pressure has been adjusted.

Tire inflation pressure changes with tem-

perature. The displayed values may also 

be different from the values measured 

using a tire pressure gauge.

Situations in which the tire pressure 

warning system may not operate prop-


In the following cases, the tire pressure 

warning system may not operate prop-


• 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 


• If a window tint that affects the radio wave 

signals is installed.

• If there is a lot of snow or ice on the vehi-

cle, particularly around the wheels or 

wheel housings.

• If the tire inflation pressure is extremely 

higher than the specified level.

• If wheel without tire pressure warning 

valves and transmitters are used.

• If the ID code on the tire pressure warn-

ing valves and transmitters is not regis-

tered in the tire pressure warning 


Performance may be affected in the fol-

lowing situations.

• Near a TV tower, electric power plant, 

gas station, radio station, large display, 

airport 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 rap-

idly for example when a tire has burst, the 

warning may not function.

Tire pressure warning system


6-3. Do-it-yourself maintenance

Warning performance of the tire pres-

sure warning system

The warning of the tire pressure warning 

system will change in accordance with driv-

ing conditions. For this reason, the system 

may give a warning even if the tire pressure 

does not reach a low enough level, or if the 

pressure is higher than the pressure that 

was adjusted to when the system was initial-


Tire pressure warning system certification

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

For vehicles sold in Canada


6-3. Do-it-yourself maintenance


Maintenance and


When replacing tires or wheels, tire 
pressure warning valves and transmit-
ters 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. (


When replacing the 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 min-

utes, the tire pressure warning light blinks 

for 1 minute and stays on to indicate a sys-

tem malfunction.

The tire pressure warning system 
must be initialized in the following 

 When rotating the tires.
 When the tire inflation pressure is 

changed when changing traveling 

 When the tire inflation pressure is 

changed such as when changing tire 
size. (When there are multiple spec-
ified pressures)

 After registering the ID codes. 



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

How to initialize the tire pressure 
warning system


Park the vehicle in a safe place and 
stop the engine for 20 minutes or 

Initialization cannot be performed while 

the vehicle is moving.


Adjust the tire inflation pressure to 
the specified cold tire inflation pres-
sure level.

Make sure to adjust the tire pressure to the 

specified cold tire inflation pressure level. 

The tire pressure warning system will oper-

ate based on this pressure level.


Start the engine. (





 of the meter con-

trol switches and select 


Installing tire pressure warning 
valves and transmitters


Repairing or replacing tires, wheels, 

tire pressure warning valves, trans-

mitters and tire valve caps

When removing or fitting the wheels, 

tires or the tire pressure warning 

valves and transmitters, contact your 

Lexus dealer as the tire pressure warn-

ing valves and transmitters may be 

damaged if not handled correctly.

Make sure to install the tire valve caps. 

If the tire valve caps are not installed, 

water could enter the tire pressure 

warning valves and the tire pressure 

warning valves could be bound.

When replacing tire valve caps, do not 

use tire valve caps other than those 

specified. The cap may become stuck.

Initializing the tire pressure 
warning system


6-3. Do-it-yourself maintenance




 of the meter con-

trol switches and select “Vehicle 
Settings”, then press “OK”.




 of the meter con-

trol switches and select “TPWS”, 
then press “OK”.




 of the meter con-

trol switches and select “Set Pres-
sure”. Then press and hold “OK” 
until the tire pressure warning light 
starts blinking.

A message is displayed on the multi-infor-

mation display. Also, “--” is displayed for 

inflation pressure of each tire on the multi-

information display while the tire pressure 

warning system determines the position.


Drive at approximately 25 mph 
(40 km/h) or more for approxi-
mately 10 to 30 minutes.

When initialization is complete, the infla-

tion pressure of each tire will be displayed 

on the multi-information display.
Even if the vehicle is not driven at approxi-

mately 25 mph (40 km/h) or more, initial-

ization can be completed by driving for a 

long time. However, if initialization does not 

complete after driving for 1 hour or more, 

park the vehicle in a safe place for approxi-

mately 20 minutes and then drive the vehi-

cle again.

When initializing

Initialization is performed while driving at 

a vehicle speed of approximately 25 mph 

(40 km/h) or more.

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 

pressure adjustment.

The tire pressure warning system can be 

initialized by yourself, but depending on 

the driving conditions and driving envi-

ronment, initialization may take some 

time to complete.

The initialization operation

If you have accidentally turned the engine 

switch off during initialization, it is not 

necessary to manually restart the initial-

ization again, as initialization will restart 

automatically the next time the engine 

switch is turned to IGNITION ON mode.

If you accidentally perform initialization 

when initialization is not necessary, adjust 

the tire inflation pressure to the specified 

level when the tires are cold, and conduct 

initialization 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 pres-

sure of a tire drops, the tire pressure 

warning light will come on.

If the tire pressure warning system is not 

initialized properly

In the following situations, initialization 

may take longer than usual to be com-

pleted or may not be possible. Normally, 

initialization completes within approxi-

mately 30 minutes.

• Vehicle is not driven at approximately 25 

mph (40 km/h) or more

• Vehicle is driven on unpaved roads

• Vehicle is driven near other vehicles and 

system cannot recognize tire pressure 

warning valve and transmitters of your 

vehicle over those of other vehicles

If initialization does not complete after driv-
ing for 1 hour or more, park the vehicle in a 
safe place for approximately 20 minutes 
and then drive the vehicle again.

If the vehicle is reversed during initializa-


6-3. Do-it-yourself maintenance


Maintenance and


tion, the data up to that point is reset, so 

perform the initialization procedure 

again from the beginning.

In the following situations, initialization 

will not be started or was not completed 

properly and the system will not operate 

properly. Perform the initialization proce-

dure again.

• If, when attempting to start initialization, 

the tire pressure warning light does not 

blink 3 times.

• If, when the vehicle has been driven for 

about 20 minutes after performing ini-

tialization, the tire pressure warning light 

blinks for approximately 1 minute and 

then illuminates.

If initialization cannot be completed after 
performing the above procedure, contact 
your Lexus dealer.

Every tire pressure warning valve and 
transmitter has a unique ID code.
When replacing a tire pressure warn-
ing valve and transmitter, it is necessary 
to register the ID code.
When registering the ID codes, per-
form the following procedure.


Park the vehicle in a safe place, wait 
for approximately 20 minutes, and 
then start the engine. (





 of the meter con-

trol switches and select 





 of the meter con-

trol switches and select “Vehicle 
Settings”, and then press “OK”.




 of the meter con-

trol switches and select “TPWS”, 
and then press “OK”.




 of the meter con-

trol switches and select “Change 
Wheel Set”. Then press and hold 
“OK” until the tire pressure warning 
light starts slowly blinking 3 times.

Then a message will be displayed on the 

multi-information display.
When registration is being performed, the 

tire pressure warning light will blink for 

approximately 1 minute then illuminate and 

“--” will be displayed for the inflation pres-

sure of each tire on the multi-information 



Drive at approximately 25 mph 
(40 km/h) or more for approxi-
mately 10 to 30 minutes.

Registration is complete when the tire 

pressure warning light turns off and the 

inflation pressure of each tire is displayed 

on the multi-information display.
Even if the vehicle is not driven at approxi-

mately 25 mph (40 km/h) or more, regis-

tration can be completed by driving for a 

long time. However, if registration does not 


When initializing the tire pressure 

warning system

Do not initialize tire inflation pressure 

without first adjusting the tire inflation 

pressure to the specified level. Other-

wise, the tire pressure warning light may 

not come on even if the tire inflation pres-

sure is low, or it may come on when the 

tire inflation pressure is actually normal.

Registering ID codes


6-3. Do-it-yourself maintenance

complete after driving for 1 hour or more, 

perform the procedure again from the 



Initialize the tire pressure warning 
system. (


When registering ID codes

ID code registration is performed while 

driving at a vehicle speed of approxi-

mately 25 mph (40 km/h) or more.

Before performing ID code registration, 

make sure that no wheels with tire pres-

sure warning valve and transmitters 

installed are near the vehicle.

Make sure to initialize the tire pressure 

warning system after registering the ID 

codes. If the system is initialized before 

registering the ID codes, the initialized 

values will be invalid.

ID codes can be registered by yourself, 

but depending on the driving conditions 

and driving environment, registration 

may take some time to complete.

Canceling ID code registration

To cancel ID code registration after it has 

been started, turn the engine switch off 

before driving the vehicle.

If the vehicle is driven after ID code regis-

tration is started, to cancel registration, 

perform the ID code registration start 

procedure again and turn the engine 

switch off before driving.

If ID code registration has been canceled, 

the tire pressure warning light will blink 

for approximately 1 minute when the 

engine switch is turned to IGNITION 

ON mode and then illuminate. The tire 

pressure warning system will be opera-

tional when the tire pressure warning 

light turns off.

If the warning light does not turn off even 

after several minutes have elapsed, ID 

code registration may not have been can-

celed correctly. To cancel registration, 

perform the ID code registration start 

procedure again and then turn the engine 

switch off before driving.

If ID codes are not registered properly

In the following situations, ID code regis-

tration may take longer than usual to be 

completed or may not be possible. Nor-

mally, registration completes within 

approximately 30 minutes.

• Vehicle is not parked for approximately 

20 minutes or more before driving

• Vehicle is not driven at approximately 25 

mph (40 km/h) or more

• Vehicle is driven on unpaved roads

• Vehicle is driven near other vehicles and 

system cannot recognize tire pressure 

warning valve and transmitters of your 

vehicle over those of other vehicles

• Wheel with tire pressure warning valve 

and transmitter installed is inside or near 

the vehicle

If registration does not complete after driv-
ing for 1 hour or more, perform the ID code 
registration procedure again from the 

If the vehicle is reversed during registra-

tion, the data up to that point is reset, so 

perform the registration procedure again 

from the beginning.

In the following situations, ID code regis-

tration will not be started or was not com-

pleted properly and the system will not 

operate properly. Perform the ID code 

registration procedure again.

• If, when attempting to start ID code regis-

tration, the tire pressure warning light 

does not blink slowly 3 times.

• If, when the vehicle has been driven for 

about 20 minutes after performing ID 

code registration, the tire pressure warn-

ing light blinks for approximately 1 minute 

and then illuminates.

If ID code registration cannot be com-

pleted after performing the above proce-

dure, contact your Lexus dealer.


6-3. Do-it-yourself maintenance


Maintenance and


The recommended cold tire inflation 
pressure and tire size are displayed on 
the tire and loading information label. 


Tire valve

Tire pressure gauge


Remove the tire valve cap.


Press the tip of the tire pressure 
gauge onto the tire valve.


Read the pressure using the gauge 


If the tire inflation pressure is not at 
the recommended level, adjust the 
If you add too much air, press the 
center of the valve to deflate.


After completing the tire inflation 
pressure measurement and adjust-
ment, apply soapy water to the 
valve and check for leakage.


Put the tire valve cap back on.

Tire inflation pressure check interval

You should check tire inflation pressure 

every two weeks, or at least once a month.

Do not forget to check the spare.

Effects of incorrect tire inflation pres-


Driving with incorrect tire inflation pressure 

may result in the following:

Reduced fuel economy

Reduced driving comfort and poor han-


Reduced tire life due to wear

Reduced safety

Damage to the drivetrain

If a tire needs frequent inflating, have it 

checked by your Lexus dealer.

Instructions for checking tire inflation 


When checking tire inflation pressure, 

observe the following:

Check only when the tires are cold.

If your vehicle has been parked for at 

least 3 hours or has not been driven for 

Tire inflation pressure

Checking the specified tire infla-
tion pressure

Inspection and adjustment pro-










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