Get Maintenance and care -> Tires / Wheels Guide for Toyota Aygo SUV Second Generation (2015-2021)

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7-3. Do-it-yourself maintenance

Tires

Replace or rotate tires in accordance with maintenance sched-

ules and treadwear.

Checking tires

Check if the treadwear indicators are showing on the tires. Also check

the tires for uneven wear, such as excessive wear on one side of the

tread.

Check the spare tire condition and pressure if not rotated.

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New tread

2

Worn tread

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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 indicators are showing on a tire.

Tire rotation

Rotate the tires in the order

shown.

To equalize tire wear and help

extend tire life, Toyota recom-

mends that tire rotation is carried

out approximately every 10000 km

(6000 miles).

Front

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7-3. Do-it-yourself maintenance

■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 any authorized Toyota retailer or Toyota

authorized repairer, or any reliable repairer.

■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.

■Low profile tires (vehicles with 165/60R15 tires)

Generally, low profile tires will wear more rapidly and tire grip performance

will be reduced on snowy and/or icy roads when compared to standard tires.

Be sure to use snow tires or tire chains on snowy and/or icy roads and drive

carefully at a speed appropriate for road and weather conditions.

■If the tread on snow tires wears down below 4 mm (0.16 in.)

The effectiveness of the tires as snow tires is lost.

Tire pressure warning system (if equipped)

Your vehicle is equipped with a tire pressure warning system.

While the vehicle is in motion, the system monitors the fluctuations in

the wheel speed signals that are output by the speed sensor for the

brake control system.

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It informs the driver if it detects a low tire inflation pressure.

◆ Initializing the tire pressure warning system

■ The tire pressure warning system must be initialized when

changing the tire

When the tire pressure warning system is initialized, the current tire

inflation pressure is set as the benchmark pressure.

■ The initialization operation

● Make sure to carry out initialization after adjusting the tire infla-

tion pressure. Also, make sure the tires are cold before carrying

out initialization or tire inflation pressure adjustment.

● If you accidentally press the reset switch when initialization is not

necessary, adjust the tire inflation pressure to the specified level

when the tires are cold, and conduct initialization again.

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7-3. Do-it-yourself maintenance

■ How to initialize the tire pressure warning system

Park the vehicle in a safe place and turn the engine switch to the

“LOCK” position (vehicles without a smart entry & start system)

or off (vehicles with a smart entry & start system).

Initialization cannot be performed while the vehicle is moving.

Adjust the tire inflation pressure to the specified cold tire inflation

pressure level. (P. 478)

Make sure to adjust the tire pressure to the specified cold tire inflation

pressure level. The tire pressure warning system will operate based on

this pressure level.

Turn the engine switch to the “ON” position (vehicles without a

smart entry & start system) or IGNITION ON mode (vehicles with

a smart entry & start system).

Press and hold the tire pres-

sure warning reset switch

until the tire pressure warn-

ing light blinks slowly 3 times.

■Situations in which the tire pressure warning system may not operate

properly (if equipped)

●This tire pressure warning system ensure a proper function when OE (Origi-

nal Equipment) tire is installed.

●In the following cases, the tire pressure warning system may not operate

properly.

ꢀ The vehicle uses non-standard size tires or tires made by other manufac-

turers.

ꢀ The vehicle uses tire of different size or manufacturers.

ꢀ The vehicle uses snow tires, compact spare tire (if equipped) or tire

chains.

ꢀ The vehicle is being driven below approximately 40 km/h (25 mph).

ꢀ The vehicle is being driven on slippery or rough road surfaces.

●When tire inflation pressure declines rapidly for example when a tire has

burst, the warning may not function.

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7-3. Do-it-yourself maintenance

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.

●Vehicles with a compact spare tire: Do not tow if your vehicle has a com-

pact spare tire installed.

●Vehicles with an emergency tire puncture repair kit: 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.

■When initializing the tire pressure warning system (if equipped)

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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374

7-3. Do-it-yourself maintenance

WARNING

■Maintenance of the tires (vehicles with the tire pressure warning sys-

tem)

Each tire, including the spare (if provided), should be checked monthly

when cold and inflated to the inflation pressure recommended by the vehi-

cle manufacturer on the vehicle placard or tire inflation pressure label (tire

and load information label). (If your vehicle has tires of a different size than

the size indicated on the vehicle placard or tire inflation pressure label [tire

and load information label], you should determine the proper tire inflation

pressure for those tires.)

As an added safety feature, your vehicle has been equipped with a tire

pressure monitoring system (TPMS-tire pressure warning system) that illu-

minates a low tire pressure telltale (tire pressure warning light) when one or

more of your tires is significantly under-inflated. Accordingly, when the low

tire pressure telltale (tire pressure warning light) illuminates, you should

stop and check your tires as soon as possible, and inflate them to the

proper pressure. Driving on a significantly under-inflated tire causes the tire

to overheat and can lead to tire failure. Under-inflation also reduces fuel effi-

ciency and tire tread life, and may affect the vehicle’s handling and stopping

ability.

Please note that the TPMS (tire pressure warning system) is not a substi-

tute for proper tire maintenance, and it is the driver’s responsibility to main-

tain correct tire pressure, even if under-inflation has not reached the level to

trigger illumination of the TPMS low tire pressure telltale (tire pressure

warning light).

Your vehicle has also been equipped with a TPMS (tire pressure warning

system) malfunction indicator to indicate when the system is not operating

properly. The TPMS (tire pressure warning system) malfunction indicator is

combined with the low tire pressure telltale (tire pressure warning light).

When the system detects a malfunction, the telltale will flash for approxi-

mately one minute and then remain continuously illuminated. This

sequence will continue upon subsequent vehicle start-ups as long as the

malfunction exists. When the malfunction indicator is illuminated, the sys-

tem may not be able to detect or signal low tire pressure as intended.

TPMS (tire pressure warning system) malfunctions may occur for a variety

of reasons, including the installation of replacement or alternate tires or

wheels on the vehicle that prevent the TPMS (tire pressure warning system)

from functioning properly. Always check the TPMS (tire pressure warning

system) malfunction telltale after replacing one or more tires or wheels on

your vehicle to ensure that the replacement or alternate tires and wheels

allow the TPMS (tire pressure warning system) to continue to function prop-

erly.

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7-3. Do-it-yourself maintenance

NOTICE

■Precaution when installing a different tire (vehicles with the tire pres-

sure warning system)

When differently constructed tires or tires of different makers, models or

tread patterns are installed, the tire pressure warning system may not oper-

ate properly.

■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.

■Low profile tires (vehicles with 165/60R15 tires)

Low profile tires may cause greater damage than usual to the tire wheel

when sustaining impact from the road surface. Therefore, pay attention to

the following:

●Be sure to use proper tire inflation pressure. If tires are under-inflated, they

may be damaged more severely.

●Avoid potholes, uneven pavement, curbs and other road hazards. Failure

to do so may lead to severe tire and wheel damage.

■If tire inflation pressure of each tire becomes low while driving

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

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376

7-3. Do-it-yourself maintenance

Tire inflation pressure

Make sure to maintain the proper tire inflation pressure. Tire

inflation pressure should be checked at least once per month.

However, Toyota recommends that tire inflation pressure be

checked once every two weeks. (P. 478)

■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 any authorized Toyota

retailer or Toyota authorized repairer, or any reliable repairer.

■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 1.5 km or 1 mile, 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.

377

7-3. Do-it-yourself maintenance

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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378

7-3. Do-it-yourself maintenance

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

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 any authorized Toyota retailer or

Toyota authorized repairer, or any reliable repairer.

*: 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

Aluminum wheel precautions (if equipped)

● Use only Toyota wheel bolts and wrenches designed for use with

your aluminum wheels.

● When rotating, repairing or changing your tires, check that the

wheel bolts are still tight after driving 1600 km (1000 miles).

● 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.

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7-3. Do-it-yourself maintenance

■When removing the wheel ornament (vehicles with steel wheels and

emergency tire puncture repair kit)

Remove the wheel ornament using the

wheel cap clip. (P. 428)

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 tube-

less tire. Doing so may result in an accident, causing death or serious

injury.

■Use of defective wheels prohibited

Do not use cracked or deformed wheels.

Doing so could cause the tire to leak air during driving, possibly causing an

accident.

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Maintenance and care -> Tires / Wheels for Your Toyota Aygo SUV Second Generation (2015-2021)

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