2010 TOYOTA YARIS HATCHBACK wheel

5
When trouble arises
321
5-2. Steps to take in an emergency
■If the tire pressure warning system is inoperative
The tire pressure warning system will be disabled in the following condi-
tions:
(When the condition be
comes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmit-
ters are used.
●If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure warning computer.
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or
higher.
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition be comes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies
are nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.
●If 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.)
●If tire chains are used.
■If 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.
■ After changing the engine oil (except Canada)
Make sure to reset the oil maintenance data. ( →P. 256)

322 5-2. Steps to take in an emergency
■Customization that can be co nfigured at Toyota dealer
● The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features →P. 377)
● The key reminder buzzer can be disabled.
(Customizable features →P. 377)
● The light reminder buzzer can be disabled.
(Customizable features →P. 377)
CAUTION
■If 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 re sult in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If 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.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning syste m may not activate immediately.
■Maintenance 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.)

5
When trouble arises
323
5-2. Steps to take in an emergency
CAUTION
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 pressure telltale (tire pre ssure 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 ma intenance, 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 ti re 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.
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.

328 5-2. Steps to take in an emergency
Replacing a flat tireChock the tires.
Vehicles with a steel wheel,
remove the wheel ornament
using the wrench.
To protect the wheel ornament,
place a rag between the wrench
and the wheel ornament, as
shown in the illustration.
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
329
5-2. Steps to take in an emergency
Slightly loosen the wheel nuts
(one turn).
Turn the jack portion “A” by hand
until the notch of the jack is in
contact with the jack point.
Raise the vehicle until the tire is
slightly raised off the ground.
Remove all the wheel nuts and
the tire.
When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.

330 5-2. Steps to take in an emergency
Installing the tireRemove any dirt or foreign mat-
ter from the wheel contact sur-
face.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is
in motion, and the tire may
come off the vehicle.
Install the tire and loosely tighten each wheel nut by hand by
approximately the same amount.
Replacing a steel wheel
Tighten the nuts until the tapered
portion comes into loose contact
with the disc wheel sheet.
Replacing an aluminum wheel Tighten the nuts until the tapered
portion comes into loose contact
with the disc wheel sheet.
Disc
wheel
sheet
Tapered portion
Disc
wheel
sheet
Tapered portion

332 5-2. Steps to take in an emergency
Vehicles with an aluminum
wheels, remove the center wheel
ornament by pushing from the
reverse side.
Be careful not to lose the wheel
ornament.
Hook each belt end to the cor-
responding anchor brackets.
Put the center portion of the
belt onto the rear center head
restraint.
Return the deck board.
Lock the deck board.
Lay the flat tire on the luggage
floor so that the outer side of the
tire wheel faces toward the rear
of the vehicle. Detach the rear
center head restraint from the
seat and release the belt.

5
When trouble arises
333
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.
■If 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.