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Toyota Tundra (2023 year). Manual in english - page 30

481

6-3. Do-it-yourself maintenance

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has been adjusted.

●

Tire inflation pressure changes

with temperature. 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 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 wheels without tire pressure

warning valves and transmitters

are used.

• If the ID code on the tire pressure

warning valves and transmitters is

not registered in the tire pressure

warning computer.

●

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 cor-

rectly displayed due to the radio

wave conditions, the display may be

corrected by driving and changing

the radio wave conditions may

change.

●

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.

■

Certification



P.626

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. (



P.484)

■

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

Installing tire pressure
warning valves and trans-
mitters

482

6-3. Do-it-yourself maintenance

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 rotating the tires.



When changing the tires.



After registering the ID codes.
(



P.484)



When changing between two
registered wheel sets.

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

■

How to initialize the tire
pressure warning system

Park the vehicle in a safe
place, turn the engine switch
off and wait 20 minutes or
more.

Initialization cannot be performed

while the vehicle is moving.

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

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.

Start the engine.

Press

of the meter

control switch to select

Press

to select

“Vehicle Settings” and then
press and hold

Press

to select

“TPWS” and then press

Press

to select “Set

Pressure”. Then press and
hold

“Set Pressure Accepted” will
be displayed on the multi-
information display and the
tire pressure warning light will

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, corrode the 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 pres-
sure warning system

483

6-3. Do-it-yourself maintenance

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blink 3 times.
When the message disap-
pears, initialization is com-
plete.

A message is displayed on the

multi-information 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 straight (with occa-
sional left and right turns) at
approximately 25 mph (40
km/h) or more for approxi-
mately 10 to 30 minutes.

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 com-

pleted 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.

■

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 initializa-

tion after adjusting the tire inflation

pressure. Also, make sure the

tires are cold before carrying out

initialization or tire inflation pres-

sure adjustment.

●

The tire pressure warning system

can be initialized by yourself, but

depending on the driving condi-

tions and driving environment, ini-

tialization may take some time to

complete.

■

The initialization operation

●

If you have accidentally turned the

engine switch off during initializa-

tion, it is not necessary to restart

the initialization again as initializa-

tion will restart when the engine

switch has been turned to ON for

the next time.

●

If you accidentally perform initial-

ization 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.

■

If the tire pressure warning sys-

tem is not initialized properly

●

In the following situations, initial-

ization may take longer than usual

to be completed or may not be

possible. Normally, initialization

completes within approximately

30 minutes.

• 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

• If the vehicle is driven in heavy

traffic or another situation where

other vehicles are driven close by,

it may take time for the system to

recognize the tire pressure warn-

ing valve and transmitters of your

vehicle over those of other vehi-

cles.

●

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.

484

6-3. Do-it-yourself maintenance

●

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.

●

In the following situations, initial-

ization 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 initial-

ization, the tire pressure warning

light does not blink 3 times.

• If, when the vehicle has been

driven for about 20 minutes after

performing initialization, the tire

pressure warning light blinks for

approximately 1 minute and then

illuminates.

If initialization cannot be completed

after performing the above proce-

dure, contact 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,
perform the following procedure.

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

Press

of the meter

control switch to select

Press

to select

“Vehicle Settings” and then
press and hold

Press

to select

“TPWS” and then press

Press

to select

“Change Wheel”. Then press
and hold

until the tire

pressure warning light blinks
slowly 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.

WARNING

■

When initializing the tire pres-

sure warning system

Do not initialize tire pressure with-

out first adjusting the tire inflation

pressure to the specified level.

Otherwise, the tire pressure warn-

ing light may not come on even if

the tire inflation pressure is low, or

it may come on when the tire infla-

tion pressure is actually normal.

Registering ID codes

485

6-3. Do-it-yourself maintenance

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Drive straight (with occa-
sional left and right turns) at
approximately 25 mph (40
km/h) or more for approxi-
mately 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.482)

■

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

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.

●

As the tires will be warm when

registration is completed, make

sure to allow the tires to cool

before performing initialization.

■

Canceling ID code registration

●

To cancel ID code registration

after it has been started, select

“Change Wheel” on the multi-

information display and press and

hold again.

●

If ID code registration has been

canceled, the tire pressure warn-

ing light will blink for approxi-

mately 1 minute when the engine

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

engine 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

completes within approximately

30 minutes.

If ID code registration is not com-

plete after driving for approxi-

mately 30 minutes, continue

driving for a while.

• 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

486

6-3. Do-it-yourself maintenance

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 ID code registration cannot be

completed after performing the

above procedure, contact your

Toyota dealer.

Your vehicle is equipped with
tire pressure warning system
with the function to have ID
codes registered for a second
wheel set, for example a winter
set. You can register a second
wheel set by yourself or your
Toyota dealer.
After registration of a second
wheel set, either of these two
wheel sets can be selected for
usage with the tire pressure
warning system.

■

Operating conditions for
the function



This function will perform the
change of wheel set only if a
second wheel set has been
registered. If no second wheel
set has been registered, no
change will be made when
selecting this function in the
menu.



Only a change between both
registered wheel set is possi-
ble, mixing between these
wheel sets is not supported.

■

How to change between
wheel sets

Have the vehicle fitted with
the preferred wheel set.

Press

of the meter

control switches on the steer-
ing wheel and select

Press

of the meter

control switches and select
“Vehicle Settings”, and then
press and hold

Press

of the meter

control switches and select
“TPWS”, and then press

Press

of the meter

control switches and select
“Change Wheel”. Then press
and hold

until the tire

Selecting wheel set

487

6-3. Do-it-yourself maintenance

Maintena

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pressure warning light starts
slowly blinking 3 times.

Afterward, the tire pressure warning

light turns on after flashing for 1

minute.

After 2 minutes, registration of a

second wheel set is being per-

formed. The tire pressure warning

light will turn off and “--” will be dis-

played for the inflation pressure of

each tire on the multi-information

display.

Initialize the tire pressure
warning system. (



P.482)

If the tire inflation pressure settings

for the installed tires change, initial-

ization operations are required, but

if the tire inflation pressure settings

are the same, initialization is not

required.

Drive straight (with occa-
sional left and right turns) at
approximately 25 mph (40
km/h) or more for approxi-
mately 10 to 30 minutes.

Registration of a second wheel set

is complete when the tire pressure

warning light turns off and the infla-

tion pressure of each tire is dis-

played on the multi-information

display.

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



P.553)

Tire valve

Tire inflation pressure

Checking the specified
tire inflation pressure

Inspection and adjust-
ment procedure

488

6-3. Do-it-yourself maintenance

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-

sure, 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 more than 1 mile or 1.5

km, you will get an accurate cold

tire inflation pressure reading.

●

Always use a tire pressure gauge.

It is difficult to judge if a tire is

properly inflated based only on its

appearance.

●

It is normal for the tire inflation

pressure to be higher after driving

as heat is generated in the tire. Do

not reduce tire inflation pressure

after driving.

●

Never exceed the vehicle capacity

weight.

Passengers and luggage weight

should be placed so that the vehi-

cle is balanced.

WARNING

■

Proper inflation is critical to

save tire performance

Keep your tires properly inflated.

If the tires are not properly

inflated, the following conditions

may occur which could lead to an

accident resulting in death or seri-

ous injury:

●

Excessive wear

●

Uneven wear

●

Poor handling

●

Possibility of blowouts resulting

from overheated tires

●

Air leaking from between tire

and wheel

●

Wheel deformation and/or tire

damage

489

6-3. Do-it-yourself maintenance

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When replacing wheels, care
should be taken to ensure that
they are equivalent to those
removed in load capacity, diam-
eter, rim width and inset

Replacement wheels are avail-
able at your Toyota dealer.

: Conventionally referred to as off-

set.

Toyota does not recommend
using the following:



Wheels of different sizes or
types



Used wheels



Bent wheels that have been
straightened

■

When replacing wheels

The wheels of your vehicle are

equipped with tire pressure warning

valves and transmitters that allow

the tire pressure warning system to

provide advance warning in the

event of a loss in tire inflation pres-

sure. Whenever wheels are

replaced, the tire pressure warning

valves and transmitters must be

installed. (



P.481)

WARNING

●

Greater possibility of tire dam-

age while driving (due to road

hazards, expansion joints,

sharp edges in the road, etc.)

NOTICE

■

When inspecting and adjust-

ing tire inflation pressure

Be sure to put the tire valve caps

back on.

If a valve cap is not installed, dirt

or moisture may get into the valve

and cause an air leak, resulting in

decreased tire inflation pressure.

Wheels

If a wheel is bent, cracked or
heavily corroded, it should
be replaced. Otherwise, the
tire may separate from the
wheel or cause a loss of
handling control.

Wheel selection

490

6-3. Do-it-yourself maintenance



Use only Toyota wheel nuts
and wheel nut wrenches
designed for use with your
aluminum wheels.



When rotating, repairing or
changing your tires, check
that the wheel nuts are still
tight after driving 1000 miles
(1600 km).



Be careful not to damage the
aluminum wheels when using
tire chains.



Use only Toyota genuine bal-
ance weights or equivalent
and a plastic or rubber ham-
mer when balancing your
wheels.

WARNING

■

When replacing wheels

●

Do not use wheels that are a dif-

ferent size from those recom-

mended in the Owner’s Manual

or certification label, as this may

result in a loss of handling con-

trol.

●

Never use an inner tube in a

leaking wheel which is designed

for a tubeless tire.

Doing so may result in an acci-

dent, causing death or serious

injury.

■

When installing the wheel

nuts

Never use oil or grease on the

wheel bolts or wheel nuts. Oil and

grease may cause the wheel nuts

to be excessively tightened, lead-

ing to bolt or disc wheel damage.

In addition, the oil or grease can

cause the wheel nuts to loosen

and the wheel may fall off, caus-

ing an accident and resulting in

death or serious injury. Remove

any oil or grease from the wheel

bolts or wheel nuts.

■

Use of defective wheels pro-

hibited

Do not use cracked or deformed

wheels. Doing so could cause the

tire to leak air during driving, pos-

sibly causing an accident.

NOTICE

■

Replacing tire pressure warn-

ing valves and transmitters

●

Because tire repair or replace-

ment may affect the tire pres-

sure warning valves and

transmitters, make sure to have

tires serviced by your Toyota

dealer or other qualified service

shop. In addition, make sure to

purchase your tire pressure

warning valves and transmit-

ters at your Toyota dealer.

●

Ensure that only genuine Toyota

wheels are used on your vehi-

cle.

Tire pressure warning valves

and transmitters may not work

properly with non-genuine

wheels.

Aluminum wheel precau-
tions (if equipped)

491

6-3. Do-it-yourself maintenance

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Turn the engine switch off.

Open the glove box.

Remove the panel.

Unlock the filter cover ( ),
pull the filter cover out of the

claws ( ), and remove the
filter cover.

Remove the filter case.

Remove the air conditioning
filter from the filter case and
replace it with a new one.

The “

UP” marks shown on the

filter and the filter case should be
pointing up.

■

Checking interval

Inspect and replace the air condi-

tioning filter according to the mainte-

nance schedule. In dusty areas or

Air conditioning filter

The air conditioning filter
must be changed regularly
to maintain air conditioning
efficiency.

Removing the air condi-
tioning filter

492

6-3. Do-it-yourself maintenance

areas with heavy traffic flow, early

replacement may be required. (For

scheduled maintenance information,

please refer to the “Owner’s Manual

Supplement” or “Scheduled Mainte-

nance”.)

■

If air flow from the vents

decreases dramatically

The filter may be clogged. Check

the filter and replace if necessary.

■

If the electronic key battery is

depleted

The following symptoms may occur:

●

The smart key system and wire-

less remote control will not func-

tion properly.

●

The operational range will be

reduced.



Flathead screwdriver



Small flathead screwdriver



Lithium battery CR2450

■

Use a CR2450 lithium battery

●

Batteries can be purchased at

your Toyota dealer, local electrical

appliance shops or camera stores.

●

Replace only with the same or

equivalent type recommended by

the manufacturer.

●

Dispose of used batteries accord-

ing to local laws.

NOTICE

■

When using the air condition-

ing system

Make sure that a filter is always

installed.

Using the air conditioning system

without a filter may cause damage

to the system.

■

To prevent damage to the fil-

ter cover

When moving the filter cover in

the direction of arrow to release

the fitting, pay attention not to

apply excessive force to the

claws. Otherwise, the claws may

be damaged.

Electronic key battery

Replace the battery with a
new one if it is depleted.
As the key may be damaged
if the following procedure is
not performed properly, it is
recommended that key bat-
tery replacement be per-
formed by your Toyota
dealer.

Items to prepare

493

6-3. Do-it-yourself maintenance

Maintena

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Take out the mechanical key.

Remove the cover.

To prevent damage to the key,

cover the tip of the flathead screw-

driver with a tape.

Remove the depleted battery.

Insert a new battery with the “+” ter-

minal facing up.

Replacing the battery

WARNING

■

Removed battery and other

parts

These parts are small and if swal-

lowed by a child, they can cause

choking. Keep away from chil-

dren. Failure to do so could result

in death or serious injury.

■

Battery precautions

Observe the following precau-

tions.

Failure to do so may result in

death or serious injury.

●

Do not swallow the battery.

Doing so may cause chemical

burns.

●

A coin battery or button battery

is used in the electronic key. If a

battery is swallowed, it may

cause severe chemical burns in

as little as 2 hours and may

result in death or serious injury.

●

Keep away new and removed

batteries from children.

●

If the cover cannot be firmly

closed, stop using the electronic

key and stow the key in the

place where children cannot

reach, and then contact your

Toyota dealer.

●

If you accidentally swallow a

battery or put a battery into a

part of your body, get emer-

gency medical attention imme-

diately.

■

To prevent battery explosion

or leakage of flammable liq-

uid or gas

●

Replace the battery with a new

battery of the same type. If a

wrong type of battery is used, it

may explode.

494

6-3. Do-it-yourself maintenance

Turn the engine switch off.

Open the fuse box cover.



Engine compartment: type A
fuse box

Push the tabs in and lift the lid off.



Engine compartment: type B
fuse box

Push the tabs in and lift the lid off.

WARNING

●

Do not expose batteries to

extremely low pressure due to

high altitude or extremely high

temperatures.

●

Do not burn, break or cut a bat-

tery.

NOTICE

■

When replacing the battery

Use a flathead screwdriver of

appropriate size. Applying exces-

sive force may deform or damage

the cover.

■

For normal operation after

replacing the battery

Observe the following precautions

to prevent accidents:

●

Always work with dry hands.

Moisture may cause the battery

to rust.

●

Do not touch or move any other

component inside the remote

control.

●

Do not bend either of the battery

terminals.

Checking and replac-

ing fuses

If any of the electrical com-
ponents do not operate, a
fuse may have blown. If this
happens, check and replace
the fuses as necessary.

Checking and replacing
fuses

495

6-3. Do-it-yourself maintenance

Maintena

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a

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

Passenger’ side instrument
panel

Remove the cover.

Vehicles with footwell lights:
Remove the footwell lights connec-
tor.

Remove the lid.
Make sure to push the claw when
removing/installing the lid.



Under the right-hand rear seat

Remove the side cover.

Remove the clips.

Lift the center rear seat under
cover in the direction of the
arrows and remove the
claws.

Pull the outer rear seat under
cover in the direction of the
arrows.

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6-3. Do-it-yourself maintenance

Pull toward the front of the
vehicle and remove the rear
seat under cover.

Remove the fuse with the
pullout tool.
Only type A fuse can be
removed using the pullout
tool.

Check if the fuse is blown.

Type A and B:

Replace the blown fuse with a new

fuse of an appropriate amperage

rating. The amperage rating can be

found on the fuse box lid.
Type C and D:

Contact your Toyota dealer.



Type A

Normal fuse

Blown fuse



Type B

Normal fuse

Blown fuse



Type C

Normal fuse

Blown fuse

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