TOYOTA COROLLA 2022 Owners Manual (in English)

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7
7-3. Do-it-yourself maintenance
Maintenance and care
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.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is
shown by a “TWI” or “ ” mark, etc.,
molded into the sidewall of each tire.
WA R N I N G
■When adding washer fluid
Do not add washer fluid when the
engine is hot or running as washer fluid contains alcohol and may catch
fire if spilled on the engine, etc.
NOTICE
■Do not use any fluid other than washer fluid
Do not use soapy water or engine
antifreeze instead of washer fluid. Doing so may cause streaking on the
vehicle’s painted surfaces, as well as
damaging the pump leading to prob- lems of the washer fluid not spraying.
■Diluting washer fluid
Dilute washer fluid with water as nec-
essary.
Refer to the freezing temperatures listed on the label of the washer fluid
bottle.
Tires
Replace or rotate tires in
accordance with maintenance
schedules and treadwear.
Checking tires

4307-3. Do-it-yourself maintenance
Replace the tires if the treadwear indi-
cators 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 inter-
nal 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 (17-inch tires and 18-inch 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.
■Checking the tire valves
When replacing the tires, check the tire valves for deformat ion, cracks, and
other damage.
WA R N I N G
■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 result-
ing 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
compact spare tire installed.
●Vehicles with an emergency tire
puncture repair kit: Do not tow any-
thing 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 (17-inch tires
and 18-inch 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:

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7
7-3. Do-it-yourself maintenance
Maintenance and care
Rotate the tires in the order shown.
Front
To equalize tire wear and help extend
tire life, Toyota recommends that tire
rotation is carried out approximately
every 10000 km (6000 miles).
When rotating front and rear tires which
have different tire inflation pressures,
do not fail to initialize the tire pressure
warning system afte r tire rotation.
Your vehicle is equipped with a tire
pressure warning system that uses
tire pressure warning valves and
transmitters to detect low tire infla-
tion pressure before serious prob-
lems arise.
If the tire pressure drops below a
predetermined level, the driver is
warned by a warning light.
( P. 4 7 5 )
■Routine tire inflation pressure
checks
The tire pressure warning system does
not replace routine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.
■Situations in which the tire pres-
sure warning system may not oper-
ate properly
●In the following cases, the tire pres-
sure warning system may not operate properly.
• If non-genuine Toyota wheels are
used. • A tire has been replaced with a tire
that is not an OE (Original Equipment)
tire. • A tire has been replaced with a tire
that is not of the specified size.
• Tire chains, etc. are equipped. • An auxiliary-supported run-flat tire is
equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the
vehicle, particularly around the wheels
NOTICE
●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. Fail-
ure 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.
■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 addi-
tion, driving on rough roads may cause damage to the tires them-
selves, as well as the vehicle’s
wheels and body.
Tire rotation
Tire pressure warning sys-
tem

4327-3. Do-it-yourself maintenance
or wheel housings.
• If the tire inflation pressure is extremely higher than the specified
level.
• If tires not equipped with tire pressure warning valves and transmitters are
used.
• If the ID code on the tire pressure warning valves and transmitters is not
registered in the tire pressure warning
computer.
●Performance may be affected in the
following situations. • Near a TV tower, electric power plant,
gas station, radio station, large dis-
play, airport or other facility that gen- erates strong radio waves or electrical
noise.
• When carrying a portable radio, cellu- lar phone, cordless phone or other
wireless communication device.
●When the vehicle is parked, the time
taken for the warning to start or go off
could be extended.
●When tire inflation pressure declines
rapidly for example when a tire has burst, the warning may not function.
■Warning performance of the tire
pressure warning system
The warning of the tire pressure warning system will change in accordance with
driving conditions. For this reason, the
system may give a warning even if the tire pressure does not reach a low
enough level, or if the pressure is higher
than the pressure th at was adjusted to when the system was initialized.

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7-3. Do-it-yourself maintenance
Maintenance and care
■Tire pressure warning system certification

4347-3. Do-it-yourself maintenance

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7-3. Do-it-yourself maintenance
Maintenance and care

4367-3. Do-it-yourself maintenance

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7-3. Do-it-yourself maintenance
Maintenance and care

4387-3. Do-it-yourself maintenance