tire pressure TOYOTA YARIS 2012 User Guide

494
4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
Tires
Replace or rotate tires in accordance with maintenance schedules
and treadwear.
Checking tires
New tread
Treadwear indicator
Worn tread
The location of treadwear indi-
cators is shown by the “TWI” or
“” marks, etc., molded on the
sidewall of each tire.
Check spare tire condition and
pressure if not rotated.
Tire rotation
Vehicles with a spare tire of different wheel type from the
installed tires or an emergency tire puncture repair kit
Rotate the tires in the order
shown.
To equalize tire wear and help
extend tire life, Toyota recom-
mends that tire rotation is car-
ried out approximately every
10000 km (6000 miles).
Front

497 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79E
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
cushioning ability of the tires. In addition, driving on rough roads may cause
damage to the tires themselves, as well as the vehicle’s wheels and body.
Low profile tires (vehicles with 195/50R16 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:
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.

498
4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
Tire inflation pressure
Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
Reduced fuel efficiency
Reduced driving comfort and tire life
Reduced safety
Damage to the drive train
If a tire needs frequent inflating, have it checked by any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional.
Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been
driven for more than 1.5 km or 1 mile, you will get an accurate cold tire
inflation pressure reading.
Always use a tire pressure gauge.
The appearance of the tire can be misleading. In addition, tire inflation
pressure that is even just a few pounds off can affect ride quality and
handling.
Do not reduce tire inflation pressure after driving. It is normal for tire infla-
tion pressure to be higher after driving.
Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is
balanced.
Make sure to maintain proper tire inflation pressure. Tire inflation
pressure should be checked at least once per month. However, Toy-
ota recommends that tire inflation pressure be checked once every
two weeks. (P. 672)

499 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79E
CAUTION
Proper inflation is critical to save tire performance
Keep your tires properly inflated. Otherwise, the following conditions may
occur and result in an accident causing death or serious injury:
Excessive wear
Uneven wear
Poor handling
Possibility of blowouts resulting from overheated tires
Poor sealing of the tire bead
Wheel deformation and/or tire separation
A greater possibility of tire damage from road hazards
NOTICE
When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on.
Without the valve caps, dirt or moisture could get into the valve and cause
air leakage, which could result in an accident. If the caps are lost, replace
them as soon as possible.

5
589 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79EVehicles with aluminum wheels:
Remove the center wheel orna-
ment by pushing from the
reverse side.
Be careful not to lose the wheel
ornament.
Stow the flat tire, tire jack and all tools.
The compact spare tire
The compact spare tire is identified by the label “TEMPORARY USE
ONLY” on the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
Make sure to check the tire inflation pressure of the compact spare tire.
(P. 672)
If you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on one of the rear wheels of the vehicle. Per-
form the following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the
vehicle.
Fit tire chains to the front tires.

5
597 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Before performing emergency repair
Check the degree of the tire
damage.
• Do not remove the nail or
screw from the tire. Removing
the object may widen the
opening and prevent emer-
gency repair with the repair kit.
• To avoid sealant leakage,
move the vehicle until the area
of the puncture, if known, is
positioned at the top of the
tire.
In the following cases, the tire cannot be repaired with the emergency
tire puncture repair kit. Contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
When the tire is damaged due to driving without sufficient air pressure
When there are any cracks or damage at any location on the tire, such as
on the side wall, except the tread
When the tire is visibly separated from the wheel
When the cut or damage to the tread is 4 mm (0.16 in.) long or more
When the wheel is damaged
When two or more tires have been punctured
When more than 2 sharp objects such as nails or screws have passed
through the tread on a single tire
When the sealant has expired

602 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79EConnect the bottle to the com-
pressor.
As shown in the illustration, insert
the bottle vertically into the com-
pressor to connect making sure
that the claw on the bottle’s neck
is hooked onto the cutout of the
compressor case.
Check the specified tire inflation
pressure.
Tire inflation pressure is speci-
fied on the label in the glove box.
(P. 672)
Start the vehicle’s engine (except hybrid vehicle) or hybrid
system (hybrid vehicle).
To inject the sealant and inflate
the tire, turn the compressor
switch on.

5
603 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79EInflate the tire until the specified
air pressure is reached.
The sealant will be injected
and the pressure will surge
and then gradually decrease.
The air pressure gauge will
display the actual tire inflation
pressure about 1 minute (5
minutes at low temperature)
after the switch is turned on.
Inflate the tire until the speci-
fied air pressure.
• Turn the compressor switch off
and then check the tire inflation
pressure. Being careful not to
over inflate, check and repeat
the inflation procedure until the
specified tire inflation pressure
is reached.
• If the tire inflation pressure is
still lower than the specified
point after inflation for 35 min-
utes with the switch on, the tire
is too damaged to be repaired.
Turn the compressor switch off
and contact any authorized
Toyota dealer or repairer, or
another duly qualified and
equipped professional.
• If the tire inflation pressure
exceeds the specified air pres-
sure, let out some air to adjust
the tire inflation pressure.
(P. 606, 672)

5
605 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79ETurn the compressor switch on
and wait for an approximately 5
seconds, and then turn it off.
Check the tire inflation pressure.
If the tire inflation pressure is
under 130 kPa (1.3 kgf/cm
2 or
bar, 19 psi): The puncture can-
not be repaired. Contact any
authorized Toyota dealer or
repairer, or another duly quali-
fied and equipped profes-
sional.
If the tire inflation pressure is
130 kPa (1.3 kgf/cm
2 or bar,
19 psi) or higher, but less than
the specified air pressure:
Proceed to .
If the tire inflation pressure is
the specified air pressure
(P. 672): Proceed to .
Turn the compressor switch on to inflate the tire until the spec-
ified air pressure is reached. Drive for about 5 km (3 miles)
and then perform .
Attach the air release cap to the
end of the hose.
If the air release cap is not
attached, the sealant may leak
and the vehicle may get dirty.
Store the bottle in the luggage compartment while it is con-
nected to the compressor.

606 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79ETaking precautions to avoid sudden braking, sudden accelera-
tion and sharp turns, drive carefully at under 80 km/h (50
mph) to the nearest authorized Toyota dealer or repairer, or
another duly qualified and equipped professional for tire repair
or replacement.
If the tire is inflated to more than the specified air pressure
Disconnect the hose from the valve.
Disconnect the hose from the valve, remove the air release cap
from the hose and then reconnect the hose.
Turn the compressor switch on and wait for several seconds, and
then turn it off. Check that the air pressure indicator shows the
specified air pressure.
If the air pressure is under the designated pressure, turn the com-
pressor switch on again and repeat the inflation procedure until the
specified air pressure is reached.
The valve of a tire that has been repaired
After a tire is repaired with the emergency tire puncture repair kit, the valve
should be replaced.
Note for checking the emergency tire puncture repair kit
Check the sealant expiry date occasionally.
The expiry date is shown on the bottle. Do not use sealant whose expiry
date has already passed. Otherwise, repairs conducted using the emer-
gency tire puncture repair kit may not be performed properly.
Install the air release cap to the end of the
hose and push the protrusion on the air
release cap into the tire valve to let some
air out.