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6-3. Do-it-yourself maintenance
Replace the tires if the treadwear indica-
tors are showing on a tire.
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 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.
Low profile 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 appro-
priate 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.
WARNING
When inspecting or replacing tires
■
Observe the following precautions to
prevent accidents.
Failure to do so may cause damage to
parts of the drivetrain as well as danger-
ous handling characteristics, which may
lead to an accident resulting in death or
serious injury.
RC350-RC300_OM_General_OM24884E
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.
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 compact
spare tire installed.
Vehicles with an emergency tire punc-
●
ture 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.
NOTICE
Low profile tires
■
Low profile tires may cause greater dam-
age 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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