Toyota 4Runner (2020 year). Instruction - page 27

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Select “Set Pressure” then
press and hold

until the

tire pressure warning light
blinks 3 times.

Then a message will be dis-

played on the multi-information

display.
“---” will be displayed on the

multi-information display for

the inflation pressure of each

tire while initialization is being

performed.

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

Initialization is complete when the position of each tire is determined

and the inflation pressure of each tire is displayed on the multi-infor-

mation display.
Initialization may take longer than approximately 1 hour in certain

situations, such as when the vehicle is stopped for a long time at

traffic lights, etc. (

P. 429)

Registering ID codes

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 codes.
The ID codes can be registered on

of the multi-information dis-

play.

7

8

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How to register the ID codes

Select

on the multi-information display using the meter con-

trol switches on the steering wheel. (

P. 96)

Select “Vehicle Settings” and then press and hold

.

Select “TPWS” and then press

.

Select “Change Wheel Set”
then press and hold

until

the tire pressure warning
light blinks slowly 3 times.

Then a message will be dis-

played on the multi-information

display.
When registration is being per-

formed, the tire pressure warn-

ing

light

will

blink

for

approximately 1 minute then

illuminate and “---” will be dis-

played for the inflation pres-

sure of each tire on the multi-

information display.

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

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.
Registration may take longer than approximately 1 hour in certain

situations, such as when the vehicle is stopped for a long time at

traffic lights, etc. (

P. 430)

After registering the ID codes, make sure to initialize the tire pres-

sure warning system. (

P. 423)

1

2

3

4

5

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When to replace your vehicle’s tires

Tires should be replaced if:

The treadwear indicators are showing on a tire.

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

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

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

Replacing tires and wheels

If the ID code of the tire pressure warning valve and transmitter is not reg-
istered, the tire pressure warning system will not work properly. After driv-
ing for about 20 minutes, the tire pressure warning light blinks for 1
minute and stays on to indicate a system malfunction.

Tire life

Any tire over 6 years old must be checked by a qualified technician even
if it has seldom or never been used or damage is not obvious.

Routine tire inflation pressure checks

The tire pressure warning system does not replace routine tire inflation
pressure checks. Make sure to check tire inflation pressure as part of
your routine of daily vehicle checks.

Maximum load of tire

Check that the number given by dividing the maximum load by 1.10 of the
replacement tire is greater than 1/2 of the Gross Axle Weight Ratings
(GAWR) of either the front axle or the rear axle, whichever is greater.
For the GAWR, see the Certification
Label. For the maximum load of the tire,
see the load limit at maximum cold tire
inflation pressure mentioned on the
sidewall of the tire. (

P. 535)

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Tire types

Summer tires
Summer tires are high-speed performance tires best suited to highway
driving under dry conditions. Since summer tires do not have the same
traction performance as snow tires, summer tires are inadequate for
driving on snow-covered or icy roads. For driving on snow-covered
roads or icy roads, the use of snow tires is recommended. When install-
ing snow tires, be sure to replace all four tires.

All season tires
All season tires are designed to provide better traction in snow and to
be adequate for driving in most winter conditions as well as for use
year-round. All season tires, however, do not have adequate traction
performance compared with snow tires in heavy or loose snow. Also, all
season tires fall short in acceleration and handling 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. 330)

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 performance of the tire pressure warning system

The warning of the tire pressure warning system will change in accor-

dance 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.

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Situations in which the tire pressure warning system may not oper-

ate 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 Equip-

ment) tire.

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

• Tire chains etc. are equipped.

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

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

wheels or wheel housings.

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

level.

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

reception.

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

put near the spare tire.

• If tires not equipped with the tire pressure warning valves and trans-

mitters 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 facility that generates strong radio waves or

electrical noise

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

other wireless communication device

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.

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The initialization operation

Make sure to carry out initialization after adjusting the tire inflation pres-

sure.

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

inflation pressure adjustment.

If you have accidentally turned the engine switch to the “LOCK” position

(vehicles without a smart key system) or off (vehicles with a smart key

system) during initialization, it is not necessary to press the reset switch

again as initialization will restart automatically when the engine switch

has been turned to the “ON” position (vehicles without a smart key sys-

tem) or IGNITION ON mode (vehicles with a smart key system) for the

next time.

If you accidentally press the reset switch when initialization is not neces-

sary, adjust the tire inflation pressure to the specified level when the

tires are cold, and conduct initialization again.

While the position of each tire is being determined and the inflation pres-

sures 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

Do not move the vehicle backward during initialization. Initialization is

started again from the beginning and it may take longer than usual.

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, initial-

ization will be completed in approximately 10 to 30 minutes.
• If initialization is not complete after driving approximately 30 minutes,

continue driving for a while.

• If initialization is not complete after driving approximately 1 hour, 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.

• If initialization is still not complete, have the vehicle inspected by your

Toyota dealer.

*

: Except when making a left/right turn

In the following situations, the tire inflation pressure will not be recorded

and the system will not operate properly. Perform initialization again.
• 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 after driving for about 20 minutes.

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When ID code registration has failed

Registration may take long time or the ID codes may not be registered in

the following situations.
• When the vehicle is moved backward during registration.

Registration is started again from the beginning and it may take lon-

ger than usual.

• When another vehicle is running the side of the vehicle such as in

heavy traffic.

It may take longer to detect the vehicle’ tire pressure warning valves

and transmitters.

• If tire pressure warning valves and transmitters are in the vehicle.

The ID codes may not be registered.

When performing registration, drive on a paved road if possible.

Depending on the driving environment and condition of the tires, regis-

tration will be completed in approximately 10 to 30 minutes.
• If registration is not complete after driving approximately 30 minutes,

continue driving for a while.

• If registration is not complete after driving approximately 1 hour, park

the vehicle in a safe place for approximately 20 minutes. Then drive

straight (with occasional left and right turns) at approximately 40 km/h

(25 mph) or more

*

for approximately 10 to 30 minutes.

If registration is still not complete, have the vehicle inspected by your

Toyota dealer.

*

: Except when making a left/right turn

When the tire pressure warning light does not blink slowly 3 times, the

ID code will not be registered and the system will not operate properly.

Perform registration again.

When registering ID codes

Initialize the tire pressure warning system after ID code registration. Ini-

tialization is disabled if the system was initialized before registration.

After ID code registration, the tires are hot by driving. Initialize the tire

pressure warning system after the tires become cold.

Canceling the change wheel set mode

If turning the engine switch to the “LOCK” position (vehicles without a

smart key system) or off (vehicles with a smart key system) when in the

change wheel set mode before driving, the change wheel set mode is

canceled.

After driving when in the change wheel set mode, the change wheel set

mode cannot be canceled. To cancel the mode, perform the procedure

for ID code registration again and turn the engine switch to the “LOCK”

position (vehicles without a smart key system) or off (vehicles with a

smart key system) before driving.

If the change wheel set mode is canceled, the ID codes that have

already been registered are communicated. When communication is fin-

ished, the tire pressure warning light will turn off.

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Tire pressure warning system certification

For vehicles sold in the U.S.A.

For vehicles sold in Canada

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WARNING

When inspecting or replacing tires

Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as
dangerous handling characteristics, which may lead to an accident
resulting in death or serious injury.

Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.

Do not use tire sizes other than those recommended by Toyota.

Do not mix differently constructed 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 previously.

When initializing the tire pressure warning system

Do not operate the tire pressure warning reset switch 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.

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NOTICE

Repairing or replacing tires, wheels, tire pressure warning valves,
transmitters and tire valve caps

When removing or fitting the wheels, tires or the tire pressure warning
valves and transmitters, contact your Toyota dealer as the tire pres-
sure warning valves and transmitters may be damaged if not handled
correctly.

Make sure to install the tire valve caps. If the tire valve caps are not
installed, water could enter the tire pressure warning valves and the
tire pressure warning valves could be bound.

When replacing tire valve caps, do not use tire valve caps other than
those specified. The cap may become stuck.

To avoid damage to the tire pressure warning valves and transmit-
ters

When a tire is repaired with liquid sealants, the tire pressure warning
valve and transmitter may not operate properly. If a liquid sealant 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. 423)

Driving on rough roads

Take particular care when driving on roads with loose surfaces or pot-
holes.
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.

If tire inflation pressure of each tire becomes low while driving

Do not continue driving, or your tires and/or wheels may be ruined.

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The recommended cold tire infla-
tion pressure and tire size are dis-
played on the tire and loading
information label. (

P. 535)

Tire inflation pressure

Tire inflation pressure

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Tire valve
Tire pressure gauge

Remove the tire valve cap.
Press the tip of the tire pressure gauge onto the tire valve.
Read the pressure using the gauge 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 inflation 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 pressure 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.

Inspection and adjustment procedure

1

2

1

2

3

4

5

6

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Instructions for checking tire inflation pressure

When checking tire inflation pressure, observe the following:

Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been
driven for 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 appear-

ance.

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 vehicle 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 serious 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

Greater possibility of tire damage while driving (due to road hazards,

expansion joints, sharp edges in the road, etc.)

NOTICE

When inspecting and adjusting 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.

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

*

.

Replacement wheels are available at your Toyota dealer.

*

:

Conventionally referred to as “offset”.

Toyota does not recommend using the following:

Wheels of different sizes or types

Used wheels

Bent wheels that have been straightened

Use only Toyota wheel nuts and 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 balance weights or equivalent and a plas-
tic or rubber hammer when balancing your wheels.

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

Aluminum wheel precautions

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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 pressure.
Whenever wheels are replaced, tire pressure warning valves and trans-
mitters must be installed. (

P. 423)

WARNING

When replacing wheels

Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may result in a loss of handling control.

Never use an inner tube in a leaking wheel which is designed for a
tubeless tire. Doing so may result in an accident, causing death or seri-
ous 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,
leading 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, causing an
accident and resulting in death or serious injury. Remove any oil or
grease from the wheel bolts or wheel nuts.

Be sure to install the wheel nuts with
the tapered ends facing inward.
Installing the nuts with the tapered
ends facing outward can cause the
wheel to break and eventually cause
the wheel to come off while driving,
which could lead to an accident
resulting in death or serious injury.

Tapered
portion

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NOTICE

Replacing tire pressure warning valves and transmitters

Because tire repair or replacement may affect the tire pressure warn-
ing 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 transmitters at your
Toyota dealer.

Ensure that only genuine Toyota wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly
with non-genuine wheels.

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