Get DIY - Engine and Chassis -> Checking and replacing tyres Guide for Toyota Aurion 4 Door First Generation (2006-2012)

DO-IT-YOURSELF MAINTENANCE -- ENGINE AND CHASSIS

Checking tyre inflation

pressure

NOTICE

Avoid overfilling, or the power steering

could be damaged.

Tyre information

Keep your tyre inflation pressures at the

proper level.

The recommended cold tyre inflation pres-

sures and tyre sizes are given on page 283

in Section 8.

You should check the tyre inflation pressure

every two weeks, or at least once a month.

And do not forget the spare!

Incorrect tyre inflation pressure may waste

fuel, reduce the comfort of driving, reduce

tyre life and make your vehicle less safe to

drive.

If a tyre frequently needs pumping up, have

it checked by your Toyota dealer.

The following instructions for checking

tyre inflation pressure should be ob-

served:

D The pressure should be checked only

when the tyres are cold. If your vehicle

has been parked for at least 3 hours and

has not been driven for more than 1.5 km

since, you will get an accurate cold tyre

inflation pressure reading.

D Always use a tyre pressure gauge. The

appearance of a tyre can be misleading.

Besides, tyre inflation pressures that are

even just a few pounds off can degrade

ride and handling.

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DO-IT-YOURSELF MAINTENANCE -- ENGINE AND CHASSIS

Checking and replacing tyres

D Do not bleed or reduce tyre inflation

pressure after driving. It is normal for

the tyre inflation pressure to be higher

after driving.

Tread wear indicator

D Be sure to reinstall the tyre valve caps.

Without the valve caps, dirt or moisture

could get into the valve core and cause

air leakage. If the caps have been lost,

have new ones put on as soon as pos-

sible.

CAUTION

D Keep your tyres inflated in accord-

ance with the vehicle’s specifications.

Otherwise, death or serious injuries

may result.

CHECKING YOUR TYRES

Check the tyre’s tread for tread wear indi-

cators. If the indicators show, replace the

tyres. The location of tread wear indica-

tors is shown by the “TWI” or “∆” marks,

etc., moulded on the sidewall of each tyre.

D Under inflation can result in:

D possibility of blowouts from an

overheated tyre,

The tyres on your Toyota have built-in tread

wear indicators to help you know when the

tyres need replacement. When the tread

depth wears to 1.6 mm or less, the indicators

will appear. If you can see the indicators in

two or more adjacent grooves, the tyre

should be replaced. The lower the tread, the

higher the risk of skidding.

D poor sealing of the tyre bead,

D wheel deformation and/or tyre sepa-

ration,

D poor handling,

D increased possibility of tyre dam-

age from road hazards,

D excessive wearing of tyres, and/or

D uneven wearing of tyres.

The effectiveness of snow tyres is lost if

the tread wears down below 4 mm.

If you have tyre damage such as cuts,

splits, cracks deep enough to expose the

fabric, or bulges indicating internal dam-

age, the tyre should be replaced.

D Over inflation of tyres can result in:

D poor handling,

D excessive wearing of tyres,

D uneven wearing of tyres, and/or

If a tyre often goes flat or cannot be properly

repaired due to the size or location of a cut

or other damage, it should be replaced. If you

are not sure, consult with your Toyota dealer.

D increased possibility of tyre dam-

age from road hazards.

If air loss occurs while driving, do not con-

tinue driving. Driving even a short distance

can damage a tyre beyond repair.

Any tyres which are over 6 years old must

be checked by a qualified technician even

if damage is not obvious.

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DO-IT-YOURSELF MAINTENANCE -- ENGINE AND CHASSIS

Tyres deteriorate with age even if they have

never or seldom been used.

When replacing a tubeless tyre, the air

valve should also be replaced with a new

one.

This applies also to the spare tyre and tyres

stored for future use.

REPLACING YOUR TYRES

When replacing a tyre, use a tyre of the

same size and construction, and the same

or greater load capacity as the originally

installed tyres.

Using any other size or type of tyre may seri-

ously affect handling, ride, speedometer/

odometer calibration, ground clearance, and

clearance between the body and tyres or

snow chains.

CAUTION

Observe the following instructions.

Otherwise, an accident may occur re-

sulting in death or serious injuries.

D Do not mix radial, bias belted, or bias-

ply tyres on your vehicle, as this may

cause dangerous handling character-

istics resulting in loss of control.

D Do not use tyres other than the manu-

facturer’s recommended size, as this

may cause dangerous handling char-

acteristics resulting in loss of control.

Never use second-hand tyres on your

Toyota.

Using tyres whose previous history is un-

known is a risk.

Toyota recommends all four tyres, or at

least both front or rear tyres be replaced

at a time as a set.

See “If you have a flat tyre” on page 224 in

Section 4 for tyre change procedure.

When a tyre is replaced, the wheel should

always be balanced.

An unbalanced wheel may affect vehicle han-

dling and tyre life. Wheels can get out of bal-

ance with regular use and should therefore

be balanced occasionally.

265

DO-IT-YOURSELF MAINTENANCE -- ENGINE AND CHASSIS

Installing snow tyres and

chains

Rotating tyres

WHEN TO USE SNOW TYRES OR CHAINS

Snow tyres or chains are recommended

when driving on snow or ice.

On wet or dry roads, conventional tyres pro-

vide better traction than snow tyres.

SNOW TYRE SELECTION

If you need snow tyres, select tyres of the

same size, construction and load capacity

as the originally installed tyres.

Do not use tyres other than those mentioned

above. Do not install studded tyres without

first checking local regulations for possible

restrictions.

With a spare tyre of the same wheel type

as the installed tyres

CAUTION

Do not use snow tyres other than the

manufacturer’s recommended size, as

this may cause dangerous handling

characteristics resulting in loss of con-

trol. Otherwise, an accident may occur

resulting in death or serious injuries.

SNOW TYRE INSTALLATION

Installing snow tyres on the front wheels

only can lead to an excessive difference

in road grip capability between the front

and rear tyres which could cause loss of

vehicle control.

With a spare tyre of different wheel type

from the installed tyres

When storing removed tyres, you should

store them in a cool dry place.

To equalise tyre wear and help extend tyre

life, Toyota recommends that you rotate

your tyres approximately every 15000 km.

However, the most appropriate timing for

tyre rotation may vary according to your

driving habits and road surface condi-

tions.

Mark the direction of rotation and be sure to

install them in the same direction when re-

placing.

See “If you have a flat tyre” on page 224 in

Section 4 for tyre change procedure.

When rotating tyres, check for uneven wear

and damage. Abnormal wear is usually

caused by incorrect tyre pressure, improper

wheel alignment, out-of-balance wheels, or

severe braking.

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DO-IT-YOURSELF MAINTENANCE -- ENGINE AND CHASSIS

CHAIN INSTALLATION

CAUTION

Install the chains on the front tyres as

tightly as possible. Do not use tyre chains

on the rear tyres. Retighten chains after

D Snow tyres should be installed on all

wheels of the vehicle.

driving 0.5—1.0 km.

D Do not drive with the snow tyres in-

correctly inflated.

When installing chains on your tyres, care-

fully follow the instructions of the chain

manufacturer.

D Observe permissible maximum speed

for your snow tyres and the legal

speed limit (whichever is lower).

If wheel covers are used, they will be

scratched by the chain band, so remove the

covers before putting on the chains.

TYRE CHAIN SELECTION

Use the tyre chains of correct size.

CAUTION

D Do not use tyre chains on the rear

tyres.

Side chain

D When using tyre chains:

D Do not exceed 50 km/h or the chain

manufacturer’s recommended speed

limit, whichever is lower.

Cross chain

D Drive carefully avoiding bumps,

holes, and sharp turns, which may

cause the vehicle to bounce.

D Avoid sharp turns or locked-wheel

braking as use of chains may ad-

versely affect vehicle handling.

Use the following type chains.

mm (in)

D Slow down before entering curves

to avoid losing control of the vehi-

cle, otherwise an accident may

occur.

A

B

C

D

E

F

Diameter of side chain

Width of side chain

Length of side chain

Diameter of cross chain

Width of cross chain

Length of cross chain

3 (0.12)

10 (0.39)

30 (1.18)

4 (0.16)

14 (0.55)

25 (0.98)

NOTICE

If the wrong combination of tyre and

chain is used, the chains could damage

the vehicle body.

267

DIY - Engine and Chassis -> Checking and replacing tyres for Your Toyota Aurion 4 Door First Generation (2006-2012)

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