Checking And Replacing Tyres - Toyota AURION Owner's Manual

DO-IT-YOURSELF MAINTENANCE -- ENGINE AND CHASSIS
Do not bleed or reduce tyre inflation
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pressure after driving. It is normal for
the tyre inflation pressure to be higher
after driving.
Be sure to reinstall the tyre valve caps.
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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
Keep your tyres inflated in accord-
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ance with the vehicle's specifications.
Otherwise, death or serious injuries
may result.
Under inflation can result in:
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possibility of blowouts from an
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overheated tyre,
poor sealing of the tyre bead,
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wheel deformation and/or tyre sepa-
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ration,
poor handling,
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increased possibility of tyre dam-
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age from road hazards,
excessive wearing of tyres, and/or
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uneven wearing of tyres.
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Over inflation of tyres can result in:
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poor handling,
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excessive wearing of tyres,
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uneven wearing of tyres, and/or
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increased possibility of tyre dam-
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age from road hazards.
264

Checking and replacing tyres

Tread wear indicator
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.
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.
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.
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.
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.