Page 282 of 404

2826-3. Do-it-yourself maintenance
YARIS_GRMN_OM_Europe_OM52J40E
Tire inflation pressure
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
● Reduced fuel economy
● Reduced driving comfort and poor handling
● Reduced tire life due to wear
● Reduced safety
● Damage to the drive train
If a tire needs frequent inflating, have it checked by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
■ 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.
It is difficult to judge if a tire is properly inflated based only on its appear-
ance.
● It is normal for the tire inflation pressure to be higher after driving as heat is
generated in the tire. Do not reduce tire inflation pressure after driving.
Make sure to maintain proper tire inflation pressure. Tire infla-
tion pressure should be checked at least once per month. How-
ever, Toyota recommends that tire inflation pressure be checked
once every two weeks. ( P. 376)
Page 283 of 404
2836-3. Do-it-yourself maintenance
YARIS_GRMN_OM_Europe_OM52J40E
6
Maintenance and care
WARNING
■Proper inflation is critical to save tire performance
Keep your tires properly inflated.
If the tires are not properly inflated, the following conditions may occur
which could lead to an accident resulting in death or serious injury:
● Excessive wear
● Uneven wear
● Poor handling
● Possibility of blowouts resulting from overheated tires
● Air leaking from between tire and wheel
● Wheel deformation and/or tire damage
● Greater possibility of tire damage while driving (due to road hazards,
expansion joints, sharp edges in the road, etc.)
NOTICE
■ When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on.
If a valve cap is not installed, dirt or moisture may get into the valve and
cause an air leak, resulting in decreased tire inflation pressure.
Page 338 of 404
3387-2. Steps to take in an emergency
YARIS_GRMN_OM_Europe_OM52J40E
■A flat tire that cannot be repaired with the emergency tire puncture repair
kit
In the following cases, the tire c annot be repaired with the emergency tire
puncture repair kit. Contact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
● 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
Page 340 of 404
3407-2. Steps to take in an emergency
YARIS_GRMN_OM_Europe_OM52J40E
Emergency tire puncture repair kit components
Nozzle
Hose
Compressor switch
Air pressure gauge
Pressure release button
Power plug
Stickers
Page 344 of 404
3447-2. Steps to take in an emergency
YARIS_GRMN_OM_Europe_OM52J40E
Make sure that the compressor
switch is off.
Remove the power plug from
the compressor.
Connect the power plug to the
power outlet socket or cigarette
lighter socket. ( P. 238)
Check the specified tire inflation
pressure.
Tire inflation pressure is specified
on the label in the glove box.
( P. 376)
Start the engine.
Page 345 of 404
3457-2. Steps to take in an emergency
YARIS_GRMN_OM_Europe_OM52J40E
7
When trouble arises
To inject the sealant and inflate
the tire, turn the compressor
switch on.
Inflate 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 infla-
tion pressure about 1 minute
(5 minutes at low tempera-
ture) after the switch is
turned on.
Inflate the tire until the speci-
fied air pressure.
• If the tire inflation pressure is
still lower than the specified
point after inflation for 35
minutes with the switch on, the
tire is too damaged to be
repaired. Turn the compressor
switch off and contact any
authorized Toyota retailer or
Toyota authorized repairer, or
any reliable repairer.
• If the tire inflation pressure exceeds the specified air pressure, let out
some air to adjust the tire inflation pressure. ( P. 348,376)
Page 346 of 404
3467-2. Steps to take in an emergency
YARIS_GRMN_OM_Europe_OM52J40E
Turn the compressor off
Disconnect the nozzle from the valve on the tire and then pull out
the power plug from the power outlet socket.
Some sealant may leak when the nozzle is removed.
Press the button to release
pressure from the bottle.
Attach the cap to the nozzle.
Install the valve cap onto the valve of the emergency repaired tire.
Disconnect the hose from the
bottle and attach the cap to the
bottle.
Place the bottle in the original bag
and zip it.
Page 347 of 404
3477-2. Steps to take in an emergency
YARIS_GRMN_OM_Europe_OM52J40E
7
When trouble arises
Temporarily store the bottle and compressor in the luggage com-
partment.
To spread the liquid sealant evenly within the tire, immediately drive
safely for about 5 km (3 miles) below 80 km/h (50 mph).
After driving for about 5 km
(3 miles), stop your vehicle in a
safe place on a hard, flat sur-
face and connect the compres-
sor.
Check the tire inflation pres-
sure.
If the tire inflation pressure is
under 130 kPa (1.3 kgf/cm2
or bar, 19 psi): The puncture
cannot be repaired. Contact
any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable
repairer.
If the tire inflation pressure is 130 kPa (1.3 kgf/cm2 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. 376):
Proceed to .