Toyota Highlander Hybrid (2023 year). Manual in english

400

6-3. Do-it-yourself maintenance

For more details about coolant, con-

tact your Toyota dealer.

■

If the coolant level drops within

a short time of replenishing

Visually check the radiator, hoses,

engine/power control unit coolant

reservoir caps, drain cock and water

pump.

If you cannot find a leak, have your

Toyota dealer test the cap and

check for leaks in the cooling sys-

tem.

Check the radiator and con-
denser and clear away any for-
eign 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 Toyota 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
item.



Fluid type

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



Item
Clean funnel

WARNING

■

When the hybrid system is

hot

Do not remove the engine/power

control unit coolant reservoir caps

and radiator cap.
The cooling system may be under

pressure and may spray hot cool-

ant if the cap is removed, causing

serious injuries, such as burns.

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 cooling. 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 damaging parts or

paint.

Checking the radiator and
condenser

WARNING

■

When the hybrid system is

hot

Do not touch the radiator or con-

denser as they may be hot and

cause serious injuries, such as

burns.

Checking and adding the
brake fluid

401

6-3. Do-it-yourself maintenance

Maintena

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■

Brake fluid can absorb moisture

from the air

Excess moisture in the brake fluid

can cause a dangerous loss of brak-

ing efficiency. Use only newly

opened brake fluid.

If any washer does not work or
the warning message appears
on the multi-information display,
the washer tank may be empty.
Add washer fluid.

WARNING

■

When filling the reservoir

Take care as brake fluid can harm

your hands and eyes and damage

painted surfaces.

If fluid gets on your hands or in

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 out or when the fluid

level in the accumulator is high.

If the reservoir needs frequent

refilling, there may be a serious

problem.

Washer fluid

WARNING

■

When adding washer fluid

Do not add washer fluid when the

hybrid system is hot or operating

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 surfaces, as

well as damaging the pump lead-

ing to problems of the washer

fluid not spraying.

■

Diluting washer fluid

Dilute washer fluid with water as

necessary.
Refer to the freezing tempera-

tures listed on the label of the

washer fluid bottle.

402

6-3. Do-it-yourself maintenance

The 12-volt battery is located in
the right-hand side of luggage
compartment.

Open the deck board.

Disengage the 8 claws and pull
the side deck board to remove
it.

Make sure that the 12-volt bat-
tery terminals are not corroded
and that there are no loose con-
nections, cracks, or loose
clamps.

Terminals
Hold-down clamp

■

Before recharging

When recharging, the 12-volt bat-

tery produces hydrogen gas which

is flammable and explosive. There-

fore, observe the following precau-

tions before recharging:

●

If recharging with the 12-volt bat-

tery 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 12-volt battery.

12-volt battery

Location

Before removing the
12-volt battery cover

Removing the 12-volt bat-
tery cover

Exterior

403

6-3. Do-it-yourself maintenance

Maintena

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■

After recharging/reconnecting

the 12-volt battery

The hybrid system may not start.

Follow the procedure below to ini-

tialize the system.

Shift the shift lever to P.

Open and close any of the doors.

Restart the hybrid system.

●

Unlocking the doors using the

smart key system may not be pos-

sible immediately after reconnect-

ing the 12-volt battery. If this

happens, use the wireless remote

control or the mechanical key to

lock/unlock the doors.

●

Start the hybrid system with the

power switch in ACC. The hybrid

system may not start with the

power switch turned off. However,

the hybrid system will operate nor-

mally from the second attempt.

●

The power switch mode is

recorded by the vehicle. If the

12-volt battery is reconnected, the

vehicle will return the power

switch mode to the status it was in

before the 12-volt battery was dis-

connected. Make sure to turn off

the power before disconnect the

12-volt battery. Take extra care

when connecting the 12-volt bat-

tery if the power switch mode prior

to discharge is unknown.

If the system will not start even after

multiple attempts at all the methods

above, contact your Toyota dealer.

WARNING

■

Chemicals in the 12-volt bat-

tery

The 12-volt battery contains poi-

sonous and corrosive sulfuric acid

and may produce hydrogen gas

which is flammable and explosive.

To reduce the risk of death or seri-

ous injury, take the following pre-

cautions while working on or near

the 12-volt battery:

●

Do not cause sparks by touch-

ing the 12-volt battery terminals

with tools.

●

Do not smoke or light a match

near the 12-volt battery.

●

Avoid contact with eyes, skin

and clothes.

●

Never inhale or swallow electro-

lyte.

●

Wear protective safety glasses

when working near the 12-volt

battery.

●

Keep children away from the

12-volt battery.

■

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 insuf-

ficient ventilation.

■

How to recharge the 12-volt

battery

Only perform a slow charge (5 A

or less). The 12-volt battery may

explode if charged at a quicker

rate.

■

Emergency measures regard-

ing 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 near-

est medical facility.

●

If electrolyte gets on your skin

Wash the affected area thor-

oughly. If you feel pain or burn-

ing, get medical attention

immediately.

404

6-3. Do-it-yourself maintenance

Check if the treadwear indica-
tors 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,

WARNING

●

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 necessary.

●

If you accidentally swallow elec-

trolyte

Drink a large quantity of water

or milk. Get emergency medical

attention immediately.

■

When replacing the 12-volt

battery

Use a 12-volt battery designed for

this vehicle. Failure to do so may

cause gas (hydrogen) to enter the

passenger compartment, causing

a fire or explosion.
For replacement of the 12-volt

battery, contact your Toyota

dealer.

■

When handling the 12-volt

battery



P.483

NOTICE

■

When recharging the 12-volt

battery

Never recharge the 12-volt bat-

tery while the hybrid system is

operating. Also, be sure all acces-

sories are turned off.

Tires

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

Checking tires

405

6-3. Do-it-yourself maintenance

Maintena

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etc., molded into the sidewall of
each tire.
Replace the tires if the treadwear
indicators 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 can-

not be properly repaired due to the

size or location of a cut or other

damage.

If you are not sure, consult with your

Toyota dealer.

■

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.

■

Proper storage of the spare tire

As an improperly stored spare tire

may cause damage to the wire

cable that holds it, check that the

spare tire is stored properly on a

daily basis.

●

If the stored spare tire appears to

be slanted or rattles while driving,

the spare tire may not be properly

stored. Store the spare tire again

by performing the following tire

change procedure correctly:

If the spare tire is slanted, the

hoist assembly may be stuck in

the wheel opening. If the spare

tire rattles while driving, it may

not be fully raised. Lower the

spare tire to the ground and

make sure that the hoist assem-

bly is perpendicular to the wheel

opening.

Raise the tire slowly and steadily

until a click is heard and the jack

handle skips.

If the spare tire cannot be lowered,

the wire cable may be severed.

Have the vehicle inspected at your

Toyota dealer.

■

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 mentioned on

the sidewall of the tire. (



P.500)

■

Tire types

●

Summer tires

Summer tires are high-speed perfor-
mance 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

406

6-3. Do-it-yourself maintenance

driving on snow-covered or icy
roads. For driving on snow-covered
roads or icy roads, the use of snow
tires is recommended. When install-
ing snow tires, be sure to replace all
four tires.

●

All season tires

All season tires are designed to pro-
vide better traction in snow and to
be adequate for driving in most win-
ter 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 accelera-
tion and handling performance com-
pared 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, con-
struction 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 restrictions. Snow tires
should be installed on all wheels.
(



P.320)

■

If the tread on snow tires wears

down below 0.16 in. (4 mm)

The effectiveness of the tires as

snow tires is lost.

WARNING

■

When inspecting or replacing

tires

Observe the following precautions

to prevent accidents.

Failure to do so may cause dam-

age to parts of the drive train as

well as dangerous handling char-

acteristics, which may lead to an

accident resulting in death or seri-

ous injury.

●

Do not mix tires of different

makes, models or tread pat-

terns.

Also, do not mix tires of remark-

ably different treadwear.

●

Do not use tire sizes other than

those recommended by Toyota.

●

Do not mix differently con-

structed tires (radial, bias-belted

or bias-ply tires).

●

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 previ-

ously.

●

Do not tow if your vehicle has a

compact spare tire installed.

NOTICE

■

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 cushioning ability of

the tires. In addition, driving on

rough roads may cause damage

to the tires themselves, as well as

the vehicle’s wheels and body.

407

6-3. Do-it-yourself maintenance

Maintena

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Rotate the tires in the order
shown.

Front

To equalize tire wear and extend
tire life, Toyota recommends that
tire rotation is carried out at the
same interval as tire inspection.
Do not fail to initialize the tire pres-
sure warning system after tire rota-
tion.

Your vehicle is equipped with a
tire pressure warning system
that uses tire pressure warning
valves and transmitters to detect
low tire inflation pressure before
serious problems arise.



The tire pressure detected by

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



P.96, 106)

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



7-inch display



12.3-inch display



If the tire pressure drops
below a predetermined level,
the driver is warned by a
screen display and a warning
light. (



P.449)

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

NOTICE

■

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

Tire pressure warning
system

408

6-3. Do-it-yourself maintenance



7-inch display



12.3-inch 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.

■

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 Toyota 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 speci-

fied level.

• If wheel without the tire pressure

warning valve and transmitter is

used.

• If the ID code on the tire pressure

warning valves and transmitters is

not registered in the tire pressure

warning computer.

●

Performance may be affected in

the following situations.

• Near a TV tower, electric power

plant, gas station, radio station,

large display, airport or other facil-

ity 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 condi-

tions.

●

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.

■

Warning performance of the tire

pressure 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.

409

6-3. Do-it-yourself maintenance

Maintena

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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 valves and transmitter
ID codes registered by your Toy-
ota dealer. (



P.412)

■

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 blinks for 1

minute and stays on to indicate a

system malfunction.

■

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



When the tire inflation pres-
sure is changed such as
when changing traveling
speed.



When the tire inflation pres-
sure is changed such as
when the tire size is changed.



When rotating the tires.



After registering the ID codes.
(



P.412)

When the tire pressure warning

Installing tire pressure
warning valves and trans-
mitters

NOTICE

■

Repairing or replacing tires,

wheels, tire pressure warn-

ing valves, transmitters and

tire valve caps

●

When removing or fitting the

wheels, tires or the tire pressure

warning valves and transmit-

ters, contact your Toyota dealer

as the tire pressure warning

valves and transmitters may be

damaged if not handled cor-

rectly.

●

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.

■

To avoid damage to the tire

pressure warning valves and

transmitters

When a tire is repaired with liquid

sealants, the tire pressure warn-

ing valve and transmitter may not

operate properly. If a liquid seal-

ant is used, contact your Toyota

dealer or other qualified service

shop as soon as possible. Make

sure to replace the tire pressure

warning valve and transmitter

when replacing the tire. (



P.409)

Initializing the tire pres-
sure warning system

410

6-3. Do-it-yourself maintenance

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

■

How to initialize the tire
pressure warning system



7-inch display

Park the vehicle in a safe
place and turn the power
switch off.

Initialization cannot be performed

while the vehicle is moving.

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



P.495)

Make sure to adjust the tire pres-

sure to the specified cold tire infla-

tion pressure level. The tire

pressure warning system will oper-

ate based on this pressure level.

Turn the power switch to ON.

Select

of the multi-infor-

mation display.

Press

of the meter

control switch, select

and

then press and hold

Press

of the meter

control switch, select “TPWS”
and then press

Press

of the meter

control switch, select “Set
Pressure” and then press
and hold



12.3-inch display

Park the vehicle in a safe
place and turn the power
switch off.

Initialization cannot be performed

while the vehicle is moving.

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



P.495)

Make sure to adjust the tire pres-

sure to the specified cold tire infla-

tion pressure level. The tire

pressure warning system will oper-

ate based on this pressure level.

Turn the power switch to ON.

Select

of the multi-infor-

mation display.

Press

of the meter

control switch, select

and

then press and hold

Press

of the meter

control switch, select “TPWS”
and then press

Press

of the meter

control switch, select “Set
Pressure” and then press
and hold

“Setting Tire Pressure Warning
System” will be displayed on the
multi-information display and the
tire pressure warning light will
blink 3 times.
When the message disappears,
initialization is complete.
A message is displayed on the

411

6-3. Do-it-yourself maintenance

Maintena

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multi-information display. Also,
“--” is displayed for inflation
pressure of each tire on the
multi-information display while
the tire pressure warning sys-
tem determines the position.
Drive the vehicle at approxi-
mately 25 mph (40 km/h) or
more for approximately 10 to 30
minutes until the inflation pres-
sure of each tire is displayed on
the multi-information display.
When initialization is complete,
the inflation pressure of each
tire will be displayed on the
multi-information display.
Even if the vehicle is not driven
at approximately 25 mph (40
km/h) or more, initialization can
be completed by driving for a
long time. However, if initializa-
tion 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.

■

Initializing the tire pressure

warning system

Initialize the system with the tire

inflation pressure adjusted to the

specified level.

■

Initialization procedure

●

Make sure to carry out initializa-

tion after adjusting the tire inflation

pressure.

Also, make sure the tires are cold

before carrying out initialization or

tire inflation pressure adjustment.

●

If you have accidentally turned the

power switch off during initializa-

tion, it is not necessary to restart

the initialization again as initializa-

tion will restart automatically when

the power switch has been turned

to ON for the next time.

●

If you accidentally restart the ini-

tialization when initialization is not

necessary, adjust the tire inflation

pressure to the specified level

when the tires are cold, and con-

duct 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 pressure of a tire

drops, the tire pressure warning

light will come on.

■

When initialization of the tire

pressure warning system has

failed

Initialization may take longer to

complete if the vehicle is driven on

an unpaved road. When performing

initialization, drive on a paved road if

possible. Depending on the driving

environment and condition of the

tires, initialization will be completed

in approximately 10 to 30 minutes. If

initialization is not complete after

driving approximately 10 to 30 min-

utes, continue driving for a while.
If the inflation pressure of each tire

is not displayed after driving for

approximately 1 hour, perform the

following procedure.

●

Park the vehicle in a safe place for

approximately 20 minutes. Then

drive straight (with occasional left

and right turns) at approximately

25 mph (40 km/h) or more for

approximately 10 to 30 minutes.

However, in the following situations,

the tire inflation pressure will not be

recorded and the system will not

operate properly. Perform initializa-

tion again.

●

If the vehicle is reversed during

initialization, the data up to that

point is reset, so perform the ini-

tialization procedure again from

the beginning.

412

6-3. Do-it-yourself maintenance

●

When operating the tire pressure

warning reset switch, the tire pres-

sure warning light does not blink 3

times.

●

After performing initialization, the

tire pressure warning light blinks

for 1 minute then stays on while

driving.

If the inflation pressure of each tire

is still not displayed, have the vehi-

cle inspected by your Toyota dealer.

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



7-inch display

Park the vehicle in a safe
place and turn the power
switch off.

Initialization cannot be performed

while the vehicle is moving.

Adjust the tire inflation pres-
sure to the specified cold tire

inflation pressure level.
(



P.495)

Make sure to adjust the tire pres-

sure to the specified cold tire infla-

tion pressure level. The tire

pressure warning system will oper-

ate based on this pressure level.

Turn the power switch to ON.

Select

of the multi-infor-

mation display.

Press

of the meter

control switch, select

and

then press and hold

Press

of the meter

control switch, select “TPWS”
and then press

Press

of the meter

control switch, select
“Change Wheel” and then
press

until the tire pres-

sure warning light starts
slowly blinking 3 times.

The change wheel set mode is acti-

vated and registration is started.
Then a message will be displayed

on the multi-information display.

When registration is being per-

formed, 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-infor-

mation display.

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

When registration is completed, the

tire pressure warning light will go off

WARNING

■

When initializing the tire pres-

sure warning system

Do not initializing tire inflation

pressure without first adjusting

the tire inflation pressure to the

specified level. Otherwise, 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 normal.

Registering ID codes

413

6-3. Do-it-yourself maintenance

Maintena

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and the inflation pressure of each

tire will be displayed on the

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

approximately 25 mph (40 km/h) or

more, registration can be com-

pleted 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.

Initialize the tire pressure
warning system. (



P.410)



12.3-inch display

Park the vehicle in a safe
place and turn the power
switch off.

Initialization cannot be performed

while the vehicle is moving.

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



P.495)

Make sure to adjust the tire pres-

sure to the specified cold tire infla-

tion pressure level. The tire

pressure warning system will oper-

ate based on this pressure level.

Turn the power switch to ON.

Select

of the multi-infor-

mation display.

Press

of the meter

control switch, select

and

then press and hold

Press

of the meter

control switch, select “TPWS”
and then press

Press

of the meter

control switch, select

“Change Wheel” and then
press

until the tire pres-

sure warning light starts
slowly blinking 3 times.

The change wheel set mode is acti-

vated and registration is started.
Then a message will be displayed

on the multi-information display.

When registration is being per-

formed, 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-infor-

mation display.

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

When registration is completed, the

tire pressure warning light will go off

and the inflation pressure of each

tire will be displayed on the

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

approximately 25 mph (40 km/h) or

more, registration can be com-

pleted 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.

Initialize the tire pressure
warning system. (



P.410)

■

When registering ID codes

●

ID code registration is performed

while driving at a vehicle speed of

approximately 25 mph (40 km/h)

or more.

●

Before performing ID code regis-

tration, make sure that no wheels

with tire pressure warning valve

and transmitters installed are near

the vehicle.

●

Make sure to initialize the tire

414

6-3. Do-it-yourself maintenance

pressure warning system after

registering the ID codes. If the

system is initialized before regis-

tering 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

power switch off before driving the

vehicle. If the vehicle is driven

after ID code registration is

started, to cancel registration, per-

form the ID code registration start

procedure again and turn the

power switch off before driving.

●

If ID code registration has been

canceled, the tire pressure warn-

ing light will blink for approxi-

mately 1 minute when the power

switch is turned to ON and then

illuminate. The tire pressure warn-

ing system will be operational

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 canceled cor-

rectly. To cancel registration, per-

form the ID code registration start

procedure again and then turn the

power switch off before driving.

■

If ID codes are not registered

properly

In the following situations, ID code

registration may take longer than

usual to be completed or may not be

possible. Normally, registration com-

pletes within approximately 30 min-

utes.

●

Vehicle is not parked for approxi-

mately 20 minutes or more before

driving

●

Vehicle is not driven at approxi-

mately 25 mph (40 km/h) or more

●

Vehicle is driven on unpaved

roads

●

Vehicle is driven near other vehi-

cles and system cannot recog-

nize 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 driving for 1 hour or more, per-

form the ID code registration proce-

dure again from the beginning.

●

If the vehicle is reversed during

registration, the data up to that

point is reset, so perform the reg-

istration procedure again from the

beginning.

●

In the following situations, ID code

registration will not be started or

was not completed properly and

the system will not operate prop-

erly. Perform the ID code registra-

tion procedure again.

• If, when attempting to start ID

code registration, 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 warning light

blinks for approximately 1 minute

and then illuminates.

If the ID codes cannot be registered

even when performing the above

procedure, contact your Toyota

dealer.

415

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

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



P.495)

Tire valve
Tire pressure gauge

Remove the tire valve cap.

Press the tip of the tire pres-
sure gauge onto the tire
valve.

Read the pressure using the
gauge gradations.

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

After completing the tire infla-
tion pressure measurement
and adjustment, 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 pres-

sure every two weeks, or at least

once a month. Do not forget to

check the spare.

■

Effects of incorrect tire inflation

pressure

Driving with incorrect tire inflation

pressure may result in the following:

●

Reduced fuel economy

●

Reduced driving comfort and poor

handling

●

Reduced tire life due to wear

●

Reduced safety

●

Damage to the drive train

If a tire needs frequent inflating,

have it checked by your Toyota

dealer.

■

Instructions for checking tire

inflation pressure

When checking tire inflation pres-

Tire inflation pressure

Checking the specified
tire inflation pressure

Inspection and adjust-
ment procedure

Toyota Highlander Hybrid (2023 year). Manual in english - page 25