tires TOYOTA YARIS HATCHBACK 2008 Owner's Manual

263
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
nWhen replacing wheels
lDo not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may re
sult in loss of handling control.
lNever use an inner tube in a leaking wheel which is designed for a
tubeless tire. Doing so may result in an accident, causing death or seri-
ous injury.
NOTICE
nReplacing tire pressure warning valves and transmitters
lBecause tire repair or replacement may affect the tire pressure warn-
ing valves and transmitters, make su re to have tires serviced by your
Toyota dealer or other qualified service shop. In addition, make sure to
purchase your tire pressure warning valves and transmitters at your
Toyota dealer.
lEnsure that only Genuine Toyota wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly
with non-genuine wheels.

296
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
n Visible symptoms
lFluid leaks under the vehicle
(Water dripping from the air cond itioning after use is normal.)
l Flat-looking tires or uneven tire wear
l High engine coolant temperatur e warning light flashes or
comes on
l Low engine coolant temperature indicator comes on or does
not come on continuously
n Audible symptoms
lChanges in exhaust sound
l Excessive tire squeal when cornering
l Strange noises related to the suspension system
l Pinging or other noises related to the engine
n Operational symptoms
lEngine missing, stumbling or running rough
l Appreciable loss of power
l Vehicle pulls heavily to one side when braking
l Vehicle pulls heavily to one side when driving on a level road
l Loss of brake effectiveness, s pongy feeling, pedal almost
touches the floor

5
When trouble arises
307
5-2. Steps to take in an emergency
nIf the tire pressure warning system is inoperative
The tire pressure warning system will become inoperative in the follow-
ing conditions:
(When the condition be
comes normal, the system will work properly.)
lIf tires not equipped with tire pressure warning valves and transmit-
ters are used.
lIf the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure warning computer.
lIf the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or
higher.
The tire pressure warning system may become inoperative in the follow-
ing conditions:
(When the condition be comes normal, the system will work properly.)
lIf electronic devices or facilities using similar radio wave frequencies
are nearby.
lIf a radio set at similar frequencies is in use in the vehicle.
lIf a window tint that affects the radio wave signals is installed.
lIf there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.
lIf non-genuine Toyota wheels are used. (Even if you use Toyota
wheels, the tire pressu re warning system may not work properly with
some types of tires.)
lIf tire chains are used.
nIf the tire pressure warning light comes on after blinking for 1
minute frequently
If the tire pressure warning light comes on after blinking for 1 minute fre-
quently when the engine switch is turned to the ON position, have it
checked by your Toyota dealer.
n After changing the engine oil (except Canada)
Make sure to reset the oil maintenance data. ( →P. 240)
n Customization that can be co nfigured at Toyota dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features →P. 363)

308 5-2. Steps to take in an emergency
CAUTION
nMaintenance of the tire
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation pressure
label (tire and load information label). (If your vehicle has tires of a differ-
ent size than the size indicated on the vehicle placard or tire inflation
pressure label [tire and load information label], you should determine the
proper tire inflation pr essure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS-ti re pressure warning system) that
illuminates a low tire pressure telltal e (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressu re telltale (tire pressure warning light) illumi-
nates, you should stop and check your tires as soon as possible, and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel effi ciency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire main tenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached the
level to trigger illu mination of the TPMS low tire pressure telltale (tire
pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning
system) malfunction indicator to indi cate when the system is not operat-
ing properly. The TPMS (tire pressure warning system) malfunction indi-
cator is combined with the low tire pressure telltale (tire pressure
warning light). When the system det ects a malfunction, the telltale will
flash for approximately one minute an d then remain continuously illumi-
nated. This sequence will continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the malfunction indi cator is illumi-
nated, the system may not be able to detect or signal low tire pressure
as intended.

5
When trouble arises
309
5-2. Steps to take in an emergency
CAUTION
TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installati
on of replacement or alternate tires
or wheels on the vehicle that prevent the TPMS (tire pressure warning
system) from functioning properly. Always check the TPMS (tire pres-
sure warning system) malfunction te lltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning system) to
continue to function properly.
nIf the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause loss of vehicle control and result in death or serious injury.
lStop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
lIf the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If the tire is flat, change to the spare tire and have the flat tire repaired
by the nearest Toyota dealer.
lAvoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
nIf a blowout or sudden air leakage should occur
The tire pressure warning syste m may not activate immediately.
NOTICE
nPrecaution when installing a different tire
When a tire of a different specification or maker is installed, the tire pres-
sure warning system may not operate properly.

5
When trouble arises
313
5-2. Steps to take in an emergency
Replacing a flat tire
Chock the tires.
Flat tire
Wheel chock
positions
Front
Left-
hand
sideBehind the
rear right-
hand side
tire
Right-
hand
sideBehind the
rear left-
hand side
tire
Rear
Left-
hand
sideIn front of
the front
right-hand
side tire
Right-
hand
sideIn front of
the front
left-hand
side tire

5
When trouble arises
319
5-2. Steps to take in an emergency
Pass the belt through the center
hole of the flat tire wheel.
Put the center portion of the belt
onto the rear center head
restraint position and then return
the rear center head restraint.
Hold the buckle and pull the belt
to secure the tire.
After stowing the flat tire, check
that the tire and belt are
secured.
nIf you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on the rear of the vehicle. Perform the fol-
lowing 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.

320 5-2. Steps to take in an emergency
CAUTION
nUsing the jack
Improper use of the jack may lead to death or injuries due to the vehicle
suddenly falling off the jack.
lDo not use the jack for any purpose other than replacing tires or install-
ing and removing tire chains.
lOnly use the jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, an d do not use other jacks for replac-
ing tires on this vehicle.
lAlways check that the jack is securely set to the jack point.
lDo not put any part of your body under the vehicle supported by a jack.
lDo not start or run the engine while your vehicle is supported by the
jack.
lDo not raise the vehicle while someone is in it.
lWhen raising the vehicle, do not put an object on or under the jack.
lDo not raise the vehicle to a hei ght greater than that required to
replace the tire.
lUse a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one
working on or near the vehicle will be injured.
nReplacing a flat tire
Observe the following precautions to reduce the risk of death or serious
injury.
lNever use oil or grease on the wheel bolts or wheel nuts.
The oil or grease can cause the wheel nuts to loosen, causing a seri-
ous accident.
Remove any oil or grease on the wheel bolts or wheel nuts.
lHave the wheel nuts tightened with a torque wrench to 76 ft·lbf (103
N·m, 10.5 kgf·m) as soon as possible after changing wheels.
Failure to follow these precautions could cause the nuts to loosen and
the wheel may fall off, which could lead to an accident causing death
or serious injury.

5
When trouble arises
321
5-2. Steps to take in an emergency
CAUTION
nWhen using the compact spare tire
lRemember that your compact spare
tire is specifically designed for
use with your vehicle. Do not use your compact spare tire on another
vehicle.
lDo not use two compact spare tires simultaneously.
lReplace the compact spare tire with a standard tire as soon as possi-
ble.
lAvoid sudden acceleration, deceleration and braking, as well as sharp
cornering.
nSpeed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact
spare tire is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failing
to observe this precaution may lead to an accident causing death or seri-
ous injury.
n When the spare tire is attached
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly.
lABS

322 5-2. Steps to take in an emergency
NOTICE
nDo not drive the vehicle with a flat tire.
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the
wheel beyond repair.
nBe careful when driving over bumps with the compact spare tire
installed on the vehicle.
The vehicle becomes lower when driving with the compact spare tire
compared to when driving with standard tires. Be careful when driving
over uneven road surfaces.
nDriving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving
performance.
nWhen replacing the tires
lWhen removing or fitting the wheels, tires or the tire pressure warning
valve and transmitter, contact your Toyota dealer as the tire pressure
warning valve and transmitter may be damaged if not handled cor-
rectly.
lReplace the grommets for the tire pressure warning valves and trans-
mitters as well.
nTo avoid damaging the tire pressure warning valves and transmit-
ters
Do not use liquid sealants on flat tires.