2018 TOYOTA YARIS iA tire pressure

YARIS iA_OM_OM99Q46z_(U)
2213-12. Tire Pressure Monitoring System
3
When Driving
In the following cases, system initialization must be performed so that
the system operates normally. • A tire pressure is adjusted.
• Tire rotation is performed.
• A tire or wheel is replaced.
• The battery is replaced or completely drained.
• The tire pressure monitoring system warning light is illuminated.
■Initialization method
Park the car in a safe place and firmly apply the parking brake.
Let the tires cool, then adjust the ti re pressure of all four (4) tires
to the specified pressure indicated on the tire pressure label
located on the door jamb of the driver’s door (door open).
Refer to Tires on P. 560.
Switch the ignition ON.
While the vehicle is parked,
press and hold the tire pres-
sure monitoring system set
switch and verify that the tire
pressure monitoring system
warning light in the combina-
tion meter flashes twice and
a beep sound is heard once.
Tire Pressure Monitoring System Initialization
1
2
3
4
NOTICE
If the system initializat ion is performed without adjusting the tire pres-
sure, the system cannot detect the norm al tire pressure and it may not
illuminate the tire pressu re monitoring system warning light even if a tire
pressure is low, or it may illuminate the light ev en if the pressures are
normal.
Adjust the tire pressure on all four tires and initialize the system when
the warning light is turned on. If the warning light turns on for a reason
other than a flat tire, the tire pressure of all four tires may have
decreased naturally.
The system initialization will not be pe rformed if the switch is pressed
while the vehicle is being driven.

417
YARIS iA_OM_OM99Q46z_(U)
5-3. Owner Maintenance
5
Maintenance and Care
Owner Maintenance Precautions
The owner or a qualified service technician should make these vehicle
inspections at the indicated inte rvals to ensure safe and dependable
operation.
Bring any problem to the attention of your Toyota dealer or qualified
service technician as soon as possible.
■When Refueling • Brake and clutch fluid level ( →P. 428)
• Engine coolant level ( →P. 425)
• Engine oil level ( →P. 424)
• Washer fluid level ( →P. 429)
■At Least Monthly
• Tire inflation pressures ( →P. 439)
■At Least Twice a Year (For Example, Every Spring and Fall)
You can do the following scheduled maintenance items if you have
some mechanical ability and a few basic tools and if you closely fol-
low the directions in this manual.
• Engine coolant ( →P. 425)
• Engine oil ( →P. 422)
Improper or incomplete service may result in problems. This section
gives instructions only for items that are easy to perform.
As explained in the Introduction ( →P. 412), several procedures can be
done only by a qualified service technician with special tools.
Improper owner maintenance during the warranty period may affect
warranty coverage. Refer to Introduction ( →P. 412) for owner’s
responsibility in protecting your in vestment. For details, read the sep-
arate Toyota Warranty and Mainten ance Guide provided with the vehi-
cle. If you are unsure about any se rvicing or maintenance procedure,
have it done by your Toyota dealer.
There are strict environmental laws regarding the disposal of waste oil
and fluids. Please dispose of your waste properly and with due regard
to the environment.
We recommend that you entrust the oil and fluid changes of your vehi-
cle to your Toyota dealer.

439
YARIS iA_OM_OM99Q46z_(U)
5-3. Owner Maintenance
5
Maintenance and Care
Tires
Inspect all tire pressures monthly (including the spare) when the tires
are cold. Maintain recommended pressures for the best ride, han-
dling, and minimum tire wear.
Refer to the spec ification charts
(→P. 5 6 0).
With tire pressure monitoring system:
After adjusting the tire pressure, init ialization of the tire pressure mon-
itoring system is necessary to make the system operate normally.
Refer to Tire Pressure Monitoring System Initialization on P. 221.
For reasons of proper performance, safety, and better fuel econ-
omy, always maintain recommended tire inflation pressures and
stay within the recommended load limits and weight distribu-
tion.
WARNING
■Using Different Tire Types
Driving your vehicle with different ty pes of tires is dangerous. It could
cause poor handling and poor braking; leading to loss of control.
Except for the limited use of the temporary spare tire, use only the same
type tires (radial, bias-belted, bias-type) on all four wheels.
■Using Wrong-Sized Tires
Using any other tire size than what is specified for the vehicle (→P. 560)
is dangerous. It could seriously affect ride, handling, ground clearance,
tire clearance, and speedometer ca libration. This could cause you to
have an accident. Use only tires that are the correct size specified for
the vehicle.
Tire Inflation Pressure

4405-3. Owner Maintenance
YARIS iA_OM_OM99Q46z_(U)
●Always check tire pressure when tires are cold.
●Warm tires normally exceed recommended pressures. Do not release
air from warm tires to adjust the pressure.
●Underinflation can cause reduced fuel economy, uneven and acceler-
ated tire wear, and poor sealing of the tire bead, which will deform the
wheel and cause separation of tire from rim.
●Overinflation can produce a harsh ride, uneven and accelerated tire
wear, and a greater po ssibility of damage from road hazards.
Keep your tire pressure at the correct levels. If one frequently needs
inflating, have it inspected.
During rotation, inspect them for
correct balance.
WARNING
■Always inflate the tires to the correct pressure
Overinflation or underinflation of tires is dangerous. Adverse handling or
unexpected tire failure could re sult in a serious accident.
Refer to Tires on ( →P. 560).
■Use only a Toyota-genuine tire valve cap
Use of a non-genuine part is danger ous as the correct tire air pressure
cannot be maintained if the tire valv e becomes damaged. If the vehicle
is driven under this c ondition, the tire air pr essure will decrease which
could result in a serious accident. Do not use any part for the tire valve
cap that is not a Toyota-genuine part.
Tire Rotation
Forward
Do not include
(TEMPORARY USE ONLY)
spare tire in rotation.

YARIS iA_OM_OM99Q46z_(U)
4415-3. Owner Maintenance
5
Maintenance and Care
Also, inspect them for uneven wear and damage. Abnormal wear is
usually caused by one or a combination of the following:• Incorrect tire pressure
• Improper wheel alignment
• Out-of-balance wheel
• Severe braking
After rotation, inflate all tire pressures to specification (
→P. 560) and
inspect the lug nu ts for tightness.
With tire pressure monitoring system:
After adjusting the tire pressure, init ialization of the tire pressure mon-
itoring system is necessary to make the system operate normally.
Refer to Tire Pressure Monitoring System Initialization on P. 221.
WARNING
■Rotate tires periodically
Irregular tire wear is dangerous. To equalize tire wear and extend tire
life, Toyota recommends that tire rotation is carried out at the same
interval as tire inspection.
For scheduled maintenance information, please refer to the “Owner’s
Manual Supplement/Scheduled Maintenance Guide”.
NOTICE
Rotate unidirectional tires and radial tires that have an asymmetrical
tread pattern or studs only from front to rear, not from side to side. Tire
performance will be reduced if rotated from side to side.

4425-3. Owner Maintenance
YARIS iA_OM_OM99Q46z_(U)
If a tire wears evenly, a wear indicator will appear as a solid band
across the tread.
Replace the tire when this happens.New tread
Worn tread
Tread wear indicator
You should replace the tire before the band crosses the entire tread.
With tire pressure monitoring system:
After adjusting the tire pressure, init ialization of the tire pressure mon-
itoring system is necessary to make the system operate normally.
Refer to Tire Pressure Monitoring System Initialization on P. 221.
Tires degrade over time, even when they are not being used on the road.
It is recommended that tires generally be replaced when they are 6 years
or older. Heat caused by hot climates or frequent high loading conditions
can accelerate the aging process. You should replace the spare tire when
you replace the other road tires due to the aging of the spare tire. The
period in which the tire was manufactured (both week and year) is indi-
cated by a 4-digit number.
Refer to Tire Labeling on P. 532.
Replacing a Tire
1
2
3
WARNING
■Always use tires that are in good condition
Driving with worn tires is dangerous. Reduced braking, steering, and
traction could result in an accident.
■Replace all four tires at the same time
Replacing just one tire is dangerous. It could cause poor handling and
poor braking resulting in loss of vehi cle control. Toyota strongly recom-
mends that you replace all four tires at the same time. If you replace
only two tires, the new tires should be installed on the rear of the vehi-
cle.

4445-3. Owner Maintenance
YARIS iA_OM_OM99Q46z_(U)
WARNING
■Always use wheels of the correct size on your vehicle
Using a wrong-sized wheel is dangerous. Braking and handling could
be affected, leading to loss of control and an accident.
NOTICE
A wrong-sized wheel may adversely affect:
●Tire fit
●Wheel and bearing life
●Ground clearance
●Snow-chain clearance
●Speedometer calibration
●Headlight aim
●Bumper height
●Tire Pressure Monitoring System (if equipped)

4866-2. Flat Tire
YARIS iA_OM_OM99Q46z_(U)
If your vehicle has Toyota optional antitheft wheel lug nuts, one on
each wheel will lock the tires and you must use a special key to unlock
them. This key will attach to the lug wrench. Register them with the
lock manufacturer by filling out the card provided in the glove com-
partment and mailing it in the ac companying envelope. If you lose this
key, consult your Toyota dealer or use the lock manufacturer’s order
form, which is with the registration card.
Accessory wheel locks cannot be used on steel wheels. This includes
situations when the spare tire is inst alled. If the spare tire is installed,
one of the original lug nuts (which should still be in the vehicle) must
be installed in place of the wheel lock.
Antitheft lug nut
Special key
■To remove an antitheft lug nutObtain the special key for the antitheft lug nut.
Place the special key on top of t he antitheft lug nut, and be sure
to hold the key square to it. If you hold the key at an angle, you
may damage both key and nut. Do not use a power impact
wrench.
Place the lug wrench on top of the key and apply pressure. Turn
the wrench counterclockwise.
■To install the antitheft lug nut
Place the special key on top of the nut, and be sure to hold the
key square to it. If you hold the key at an angle, you may damage
both key and nut. Do not use a power impact wrench.
Place the lug wrench on top of the special key, apply pressure,
and turn it clockwise.
Locking Lug Nuts (if equipped)
1
2
1
2
3
1
2
Nut tightening torque
ft•lbf (N•m, kgf•m)80-108 (108-147, 12-14)