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6-3. 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 loca-
tion of a cut or other damage
If you are not sure, consult with your Lexus
dealer.
Tire life
■
Any tire over 6 years old must be checked
by a qualified technician even if it has sel-
dom or never been used or damage is not
obvious.
If the tread on snow tires wears down
■
below 4 mm (0.16 in.)
The effectiveness of the tires as snow tires is
lost.
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 danger-
ous 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 Lexus.
Do not mix differently constructed
●
tires (radial, bias-belted or bias-ply
tires).
Do not mix summer, all season and
●
snow tires.
LS500h_OM_General_OM50J66E
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.
NOTICE
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 cushion-
ing ability of the tires. In addition, driving
on rough roads may cause damage to
the tires themselves, as well as the vehi-
cle's wheels and body.
Tire rotation
Rotate the tires in the order shown.
Vehicles with front and rear tires of
the same size
Vehicles with front and rear tires of
differing sizes
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