Lexus UX 300e (2022 year). Manual in english - page 23

 

  Index      Manuals     Lexus UX 300e (2022 year). Manual in english

 

Search            copyright infringement  

 

 

 

 

 

 

 

 

 

 

 

Content      ..     21      22      23      24     ..

 

 

 

Lexus UX 300e (2022 year). Manual in english - page 23

 

 

392

7-3. Do-it-yourself maintenance

Fuse boxes (

P.416)

Power control unit coolant reservoir (

P.392)

12-volt battery (

P.394)

Radiator (

P.393)

Condenser (

P.393)

Electric cooling fans

Washer fluid tank (

P.396)

Heater coolant reservoir (

P.394)

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

Motor compartment

Components

A
B
C
D

E
F

G

H

Checking the power control unit 
coolant

393

7-3. Do-it-yourself maintenance

7

M

ain

ten

an

ce a
nd

 ca

re

Reservoir cap

“F” line

“L” line

If the level is on or below the “L” line, add 
coolant up to the “F” line. (

P.465)

Q

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.
“Toyota Super Long Life Coolant” is a mix-

ture of 50% coolant and 50% deionized 

water.

(Minimum temperature: -35°C [-31°F])
For more details about coolant, contact any 

authorized Lexus retailer or Lexus autho-

rized repairer, or any reliable repairer.

Q

If the coolant level drops within a short 

time of replenishing

Visually check the radiator, hoses, power 

control unit coolant reservoir caps, drain 

cock and water pump.
If you cannot find a leak, have any autho-

rized Lexus retailer or Lexus authorized 

repairer, or any reliable repairer, test the 

cap and check for leaks in the cooling sys-

tem.

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 
any authorized Lexus retailer or Lexus 
authorized repairer, or any reliable 
repairer.

A
B
C

WARNING

Q

When the EV system is hot

Do not remove the power control unit 

coolant reservoir caps.
The cooling system may be under pres-

sure and may spray hot coolant if the cap 

is removed, causing serious injuries, such 

as burns.

NOTICE

Q

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.

Q

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-
denser

WARNING

Q

When the EV system is hot

Do not touch the radiator or condenser 

as they may be hot and cause serious 

injuries, such as burns.

394

7-3. Do-it-yourself maintenance

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

Q

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.
“Toyota Super Long Life Coolant” is a mix-

ture of 50% coolant and 50% deionized 

water.

(Minimum temperature: -35°C [-31°F])
For more details about coolant, contact any 

authorized Lexus retailer or Lexus autho-

rized repairer, or any reliable repairer.

Q

If the coolant level drops within a short 

time of replenishing

Visually check the hoses, heater coolant 

reservoir caps, drain cock and water pump.
If you cannot find a leak, have any autho-

rized Lexus retailer or Lexus authorized 

repairer, or any reliable repairer, test the 

cap and check for leaks in the cooling sys-

tem.

Check the 12-volt battery as follows.

Q

12-volt battery exterior

Make sure that the 12-volt battery ter-
minals are not corroded and that there 
are no loose connections, cracks, or 

WARNING

Q

When the electric cooling fans are 

operating

Do not touch the motor compartment.
With the power switch in ON, the elec-

tric cooling fans may automatically start 

to run if the air conditioning is on and/or 

the coolant temperature is high. Be sure 

the power switch is OFF when working 

near the electric cooling fans or radiator 

grille.

Checking the heater coolant

A
B
C

WARNING

Q

When the heater system is hot

Do not remove the heater coolant reser-

voir caps.
The heater system may be under pres-

sure and may spray hot coolant if the cap 

is removed, causing serious injuries, such 

as burns.

NOTICE

Q

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.

Q

If you spill coolant

Be sure to wash it off with water to pre-

vent it from damaging parts or paint.

Checking the 12-volt battery

395

7-3. Do-it-yourself maintenance

7

M

ain

ten

an

ce a
nd

 ca

re

loose clamps.

Terminals

Hold-down clamp

Q

Checking 12-volt battery fluid

Check that the level is between the 
“UPPER LEVEL” and “LOWER 
LEVEL” lines.

“UPPER LEVEL” line

“LOWER LEVEL” line

If the fluid level is at or below the “LOWER 
LEVEL” line, add distilled water.

Q

Adding distilled water

1

Remove the vent plug.

2

Add distilled water.

If the “UPPER LEVEL” cannot be seen, 

check the fluid level by looking directly at 

the cell.

3

Put the vent plug back on and close 
it securely.

Q

Before recharging

When recharging, the 12-volt battery pro-

duces hydrogen gas which is flammable 

and explosive. Therefore, observe the fol-

lowing precautions before recharging:

O

If recharging with the 12-volt battery 

installed on the vehicle, be sure to dis-

connect the ground cable.

O

Make sure the power switch on the char-

ger is off when connecting and discon-

necting the charger cables to the 12-volt 

battery.

Q

After recharging/reconnecting the 12-

volt battery

O

The EV system may not start. Follow the 

procedure below to initialize the system.

1

Shift the shift position to P.

2

Open and close any of the doors.

3

Restart the EV system.

O

Unlocking the doors using the smart 

entry & start system may not be possible 

immediately after reconnecting the 12-

volt battery. If this happens, use the wire-

less remote control or the mechanical 

key to lock/unlock the doors.

O

Start the EV system with the power 

switch in ACC. The EV system may not 

start with the power switch turned off. 

However, the EV system will operate 

normally from the second attempt.

O

The power switch mode is recorded by 

the vehicle. If the 12-volt battery is dis-

A
B

A
B

396

7-3. Do-it-yourself maintenance

connected and reconnected, the vehicle 

will return the power switch mode to the 

status it was in before the 12-volt battery 

was disconnected. Make sure to turn off 

the power switch before disconnecting 

the 12-volt battery. Take extra care when 

connecting the 12-volt battery if the 

power switch mode prior to the 12-volt 

battery being disconnected is unknown.

If the EV system will not start even after 
multiple attempts at all the methods above, 
contact any authorized Lexus retailer or 
Lexus authorized repairer, or any reliable 
repairer.

If none of the washer do not work or 
the “Windshield Washer Fluid Low” 

WARNING

Q

Chemicals in the 12-volt battery

Batteries contain 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 12-volt 

battery:

O

Do not cause sparks by touching the 

12-volt battery terminals with tools.

O

Do not smoke or light a match near the 

12-volt battery.

O

Avoid contact with eyes, skin and 

clothes.

O

Never inhale or swallow electrolyte.

O

Wear protective safety glasses when 

working near the 12-volt battery.

O

Keep children away from the 12-volt 

battery.

Q

Where to safely charge the 12-volt 

battery

Always charge the 12-volt battery in an 

open area. Do not charge the 12-volt 

battery in a garage or closed room 

where there is insufficient ventilation.

Q

Emergency measures regarding 

electrolyte

O

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.

O

If electrolyte gets on your skin

Wash the affected area thoroughly. If 

you feel pain or burning, get medical 

attention immediately.

O

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-

essary.

O

If you accidentally swallow electrolyte

Drink a large quantity of water or milk. 

Get emergency medical attention 

immediately.

Q

When there is insufficient 12-volt bat-

tery fluid

Do not use if there is insufficient fluid in 

the 12-volt battery. There is a possible 

danger that the 12-volt battery may 

explode.

NOTICE

Q

When recharging the 12-volt battery

Never recharge the 12-volt battery while 

the EV system is operating. Also, be sure 

all accessories are turned off.

Q

When adding distilled water

Avoid overfilling. Water spilled during 

12-volt battery recharging may cause 

corrosion.

Adding the washer fluid

397

7-3. Do-it-yourself maintenance

7

M

ain

ten

an

ce a
nd

 ca

re

appears on the multi-information dis-
play, the washer tank may be empty.
Add washer fluid.

Check if the treadwear indicators are 
showing on the tires. Also check the 
tires for uneven wear, such as exces-
sive wear on one side of the tread.

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-
tors are showing on a tire.

WARNING

Q

When adding washer fluid

Do not add washer fluid when the EV 

system is hot or operating as washer fluid 

contains alcohol and may catch fire if 

spilled on the motor, etc.

NOTICE

Q

Do not use any fluid other than 

washer fluid

Do not use soapy water or antifreeze 

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.

Q

Diluting washer fluid

Dilute washer fluid with water as neces-

sary.

Refer to the freezing temperatures listed 

on the label of the washer fluid bottle.

Tires

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

Checking tires

A
B
C

398

7-3. Do-it-yourself maintenance

Q

When to replace your vehicle’s tires

Tires should be replaced if:

O

The treadwear indicators are showing on 

a tire.

O

You have tire damage such as cuts, splits, 

cracks deep enough to expose the fabric, 

and bulges indicating internal damage

O

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 any authorized 

Lexus retailer or Lexus authorized repairer, 

or any reliable repairer.

Q

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 

obvious.

Q

If the tread on snow tires wears down 

below 4 mm (0.16 in.)

The effectiveness of the tires as snow tires is 

lost.

Q

Replacing tires

Your vehicle may not be equipped with the 

following tools and jack for replacing a tire. 

In this case, when replacing tires, purchase 

tools and jack. Tools and jack can be pur-

chased at any authorized Lexus retailer or 

Lexus authorized repairer, or any reliable 

repairer.

O

Wheel nut wrench

O

Jack

O

Jack handle

Rotate the tires in the order shown.

WARNING

Q

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.

O

Do not mix tires of different makes, 

models or tread patterns. 

Also, do not mix tires of remarkably 

different treadwear.

O

Do not use tire sizes other than those 

recommended by Lexus.

O

Do not mix differently constructed 

tires (radial, bias-belted or bias-ply 

tires).

O

Do not mix summer, all season and 

snow tires.

O

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.

O

Do not tow anything if a tire that has 

been repaired using the emergency 

tire puncture repair kit is installed. The 

load on the tire may cause unexpected 

damage to the tire.

NOTICE

Q

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.

Q

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

399

7-3. Do-it-yourself maintenance

7

M

ain

ten

an

ce a
nd

 ca

re

To equalize tire wear and help extend tire 
life, Lexus recommends that tire rotation is 
carried out approximately every 10000 
km (6000 miles).
Do not fail to initialize the tire pressure 
warning system after tire rotation.

Q

When rotating the tires

Make sure that the power switch is OFF. If 

the tires are rotated while the power switch 

is in ON, the tire position information will 

not be updated. 

If this accidentally occurs, either turn the 

power switch to OFF and then to ON, or 

initialize the tire pressure warning system 

after checking that the tire pressure is prop-

erly adjusted.

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. (

P.433, 440)

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

P.164)

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

Q

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.

Q

Tire inflation pressure

O

It may take a few minutes to display the 

tire inflation pressure after the power 

switch is turned to ON. It may also take a 

few minutes to display the tire inflation 

pressure after inflation pressure has been 

adjusted.

O

Tire inflation pressure changes with tem-

perature.

The displayed values may also be differ-

ent from the values measured using a tire 

pressure gauge.

Q

Situations in which the tire pressure 

warning system may not operate prop-

erly

O

In the following cases, the tire pressure 

warning system may not operate prop-

erly.

• 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.

Tire pressure warning system

400

7-3. Do-it-yourself maintenance

• 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 wheels 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 

computer.

O

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.

O

When the vehicle is parked, the time 

taken for the warning to start or go off 

could be extended.

O

When tire inflation pressure declines rap-

idly for example when a tire has burst, the 

warning may not function.

Q

Warning performance of the tire pres-

sure warning system

The warning of the tire pressure warning 

system will change in accordance with the 

conditions under which it was initialized. 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 initialized.

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 pres-
sure warning computer and the tire pres-
sure warning system must be initialized. 
(

P.403)

Q

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 10 minutes, 

the tire pressure warning light blinks for 1 

minute and stays on to indicate a system 

malfunction.

Installing tire pressure warning 
valves and transmitters

NOTICE

Q

Repairing or replacing tires, wheels, 

tire pressure warning valves, trans-

mitters and tire valve caps

O

When removing or fitting the wheels, 

tires or the tire pressure warning 

valves and transmitters, contact any 

authorized Lexus retailer or Lexus 

authorized repairer, or any reliable 

repairer as the tire pressure warning 

valves and transmitters may be dam-

aged if not handled correctly.

O

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.

O

When replacing tire valve caps, do not 

use tire valve caps other than those 

specified. The cap may become stuck.

401

7-3. Do-it-yourself maintenance

7

M

ain

ten

an

ce a
nd

 ca

re

Q

The tire pressure warning system 
must be initialized in the following 
circumstances:

When rotating the tires.

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. 
(

P.403)

When the tire pressure warning sys-
tem is initialized, the current tire infla-
tion pressure is set as the benchmark 
pressure.

Q

How to initialize the tire pressure 
warning system

1

Park the vehicle in a safe place and 
stop the EV system for 20 minutes 
or more.

Initialization cannot be performed while 

the vehicle is moving.

2

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

3

Start the EV system (

P.224)

4

Press 

 or 

 of the meter con-

trol switches and select 

.

5

Press 

 or 

 of the meter con-

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

6

Press 

 or 

 of the meter con-

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

7

Press 

 or 

 of the meter con-

trol switches and select “Set Pres-
sure”, and then press and hold 
“OK” until the tire pressure warn-
ing 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.

8

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

NOTICE

Q

To avoid damage to the tire pressure 

warning valves and transmitters

When a tire is repaired with liquid seal-

ants, the tire pressure warning valve and 

transmitter may not operate properly. If a 

liquid sealant is used, contact any autho-

rized Lexus retailer or Lexus authorized 

repairer, or any reliable repairer or other 

qualified service shop as soon as possi-

ble. After use of liquid sealant, make sure 

to replace the tire pressure warning 

valve and transmitter when repairing or 

replacing the tire.

Initializing the tire pressure 
warning system

402

7-3. Do-it-yourself maintenance

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 40 km/h (25 mph) 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 

approximately 20 minutes and then drive 

the vehicle again.

Q

When initializing

O

Initialization is performed while driving at 

a vehicle speed of approximately 40 

km/h (25 mph) or more.

O

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.

O

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.

Q

The initialization operation

O

If you have accidentally turned the power 

switch off during initialization, it is not 

necessary to manually restart the initial-

ization again, as initialization will restart 

automatically the next time the power 

switch is turned to ON.

O

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.

O

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.

Q

If the tire pressure warning system is not 

initialized properly

O

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 40 

km/h (25 mph) 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.

O

If the vehicle is reversed during initializa-

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

perform the initialization procedure 

again from the beginning.

O

In the following situations, initialization 

will not be started or was not completed 

properly and the system will not operate 

properly. Perform the initialization pro-

cedure 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 initial-

ization, the tire pressure warning light 

blinks for approximately 1 minute and 

then illuminates.

If the inflation pressure of each tire is still not 

displayed, have the vehicle inspected by 

any authorized Lexus retailer or Lexus 

authorized repairer, or any reliable 

repairer.

WARNING

Q

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 

pressure is low, or it may come on when 

the tire inflation pressure is actually nor-

mal.

403

7-3. Do-it-yourself maintenance

7

M

ain

ten

an

ce a
nd

 ca

re

The tire pressure warning valve and 
transmitter is equipped with a unique 
ID code. When replacing a tire pres-
sure warning valve and transmitter, it is 
necessary to register the ID code.
When registering the ID codes, per-
form the following procedure.

1

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

P.224)

2

Press 

 or 

 of the meter con-

trol switches and select 

.

3

Press 

 or 

 of the meter con-

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

4

Press 

 or 

 of the meter con-

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

5

Press 

 or 

 of the meter con-

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

The change wheel set mode is activated 

and registration is started.
A message is displayed on the multi-infor-

mation display, and “--” is displayed for 

inflation pressure of each tire. Then, the tire 

pressure warning light blinks rapidly for 

approximately 1 minute and stays on.

6

Drive at approximately 40 km/h 
(25 mph) 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 40 km/h (25 mph) or more, regis-

tration can be completed by driving for a 

long time. However, if registration does 

not complete after driving for 1 hour or 

more, perform the procedure again from 

the beginning.

7

Initialize the tire pressure warning 
system. (

P.401)

Q

When registering ID codes

O

ID code registration is performed while 

driving at a vehicle speed of approxi-

mately 40 km/h (25 mph) or more.

O

Before performing ID code registration, 

make sure that no wheels with tire pres-

sure warning valve and transmitters 

installed are near the vehicle.

O

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.

O

ID codes can be registered by yourself, 

but depending on the driving conditions 

and driving environment, registration 

may take some time to complete.

Registering ID codes

404

7-3. Do-it-yourself maintenance

Q

Canceling ID code registration

O

To cancel ID code registration after it has 

been started, turn the power switch off 

before driving the vehicle. If the vehicle is 

driven after ID code registration is 

started, to cancel registration, perform 

the ID code registration start procedure 

again and turn the power switch off 

before driving.

O

If ID code registration has been can-

celed, the tire pressure warning light will 

blink for approximately 1 minute when the 

power switch is turned to ON and then 

illuminate. The tire pressure warning sys-

tem will be operational when the tire 

pressure warning light turns off.

O

If the warning light does not turn off even 

after several minutes have elapsed, ID 

code registration may not have been 

canceled correctly. To cancel registra-

tion, perform the ID code registration 

start procedure again and then turn the 

power switch off before driving.

Q

If ID codes are not registered properly

O

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 40 

km/h (25 mph) or more

• Vehicle is driven on unpaved roads

• Vehicle is driven near other vehicles and 

system cannot recognize tire pressure 

warning valves 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 
beginning.

O

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.

O

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.

O

If ID code registration cannot be com-

pleted after performing the above proce-

dure, contact any authorized Lexus 

retailer or Lexus authorized repairer, or 

any reliable repairer.

405

7-3. Do-it-yourself maintenance

7

M

ain

ten

an

ce a
nd

 ca

re

Stop the vehicle in a safe place on a 
hard, flat surface.

Set the parking brake.

Shift the shift position to P.

Turn off the intrusion sensor and tilt 
sensor (if equipped) (

P.74)

Stop the EV system.

Q

Tools

As your vehicle is equipped with an emer-

gency tire puncture repair kit, the following 

tools for replacing a tire are not included 

with your vehicle. They can be purchased at 

any authorized Lexus retailer or Lexus 

authorized repairer, or any reliable 

repairer.

O

Wheel nut wrench

O

Jack

O

Jack handle

Replacing the tire

When raising your vehicle with a 
jack, position the jack correctly.
Improper placement may damage 
your vehicle or cause injury.
If necessary tire replacement 
seems difficult to perform, contact 
any authorized Lexus retailer or 
Lexus authorized repairer, or any 
reliable repairer.

Before jacking up the vehicle

406

7-3. Do-it-yourself maintenance

Towing eyelet

Jack

*

/Jack handle

*

/Wheel nut wrench

*

*

: They can be purchased at any authorized Lexus retailer or Lexus authorized repairer, or 

any reliable repairer.

Location of the tools

A
B

WARNING

Q

Using the tire jack

Observe the following precautions.
Improper use of the tire jack may cause 

the vehicle to suddenly fall off the jack, 

leading to death or serious injury.

O

Do not use the tire jack for any pur-

pose other than replacing tires or 

installing and removing tire chains.

O

Do not use other tire jacks for replac-

ing tires on this vehicle.

O

Put the jack properly in its jack point.

O

Do not put any part of your body under 

the vehicle while it is supported by the 

jack.

O

Do not start the EV system or drive the 

vehicle while the vehicle is supported 

by the jack.

O

Do not raise the vehicle while some-

one is inside.

O

When raising the vehicle, do not put an 

object on or under the jack.

O

Do not raise the vehicle to a height 

greater than that required to replace 

the tire.

O

Use a jack stand if it is necessary to get 

under the vehicle.

O

When lowering the vehicle, make sure 

that there is no-one near the vehicle. If 

there are people nearby, warn them 

vocally before lowering.

407

7-3. Do-it-yourself maintenance

7

M

ain

ten

an

ce a
nd

 ca

re

1

Chock the tires.

2

Slightly loosen the wheel nuts (one 
turn).

3

Turn the tire jack portion 

 by 

hand until the notch of the jack is in 
contact with the jack point.

The jack point guides are located under 

the rocker panel. They indicate the jack 

point positions.

4

Install the wheel nut wrench in jack 
handle.

5

Raise the vehicle until the tire is 
slightly raised off the ground.

Replacing a flat tire

Tire

Wheel chock posi-

tions

Front left-hand

Behind the rear 
right-hand side tire

Front right-hand

Behind the rear left-
hand side tire

Rear left-hand

In front of the front 
right-hand side tire

Rear right-hand

In front of the front 
left-hand side tire

A

 

 

 

 

 

 

 

Content      ..     21      22      23      24     ..