Toyota Yaris: Tire Information (U.S.A.) / Location of the Tire Label (Placard)
You will find the tire label containing tire inflation pressure by tire size
and other important information on the driver’s side B-pillar or on the
edge of the driver’s door frame.
SAMPLE

Recommended Tire Inflation Pressure
On the tire label you will find the recommended tire inflation pressure
in both kPa and psi for the tires installed as original equipment on the
vehicle. It is very important that the inflation pressure of the tires on
your vehicle is maintained at the recommended pressure. You should
check the tire pressure regularly to insure that the proper inflation
pressure is maintained. Refer to Tires.
Tire pressures listed on the vehicle placard or tire information label
indicate the recommended cold tire inflation pressure, measured when the
tires are cold, after the vehicle has been parked for at least 3 hours. As
you drive, the temperature in the tire warms up, increasing the tire pressure.
WARNING
Always check the tire inflation pressures on a regular basis
according to the recommended tire inflation pressure on the tire label and
in conjunction with the information in this owner’s manual
Driving your vehicle with under-inflated tires is dangerous.
Under-inflation is the most common cause of failures in any kind of
tire
and may result in severe cracking, tread separation or “blowout”, with
unexpected loss of vehicle control and increased risk of injury. Underinflation
increases sidewall flexing and rolling resistance, resulting in
heat buildup and internal damage to the tire. It results in unnecessary
tire stress, irregular wear, loss of control and accidents. A tire can lose
up to half of its air pressure and not appear to be flat!
It is impossible to determine whether or not tires are properly
inflated
just by looking at them.
Checking Tire Pressure
- When you check the air pressure, make sure the tires are cold -
meaning they are not hot from driving even a mile.
- Remove the cap from the valve on one tire.
- Firmly press a tire gauge onto the valve.
- Add air to achieve recommended air pressure.
- If you overfill the tire, release air by pushing on the metal stem in
the center of the valve. Then recheck the pressure with your tire
gauge.
- Replace the valve cap.
- Repeat with each tire, including the spare.
- Visually inspect the tires to make sure there are no nails or other
objects embedded that could poke a hole in the tire and cause an
air leak.
- Check the sidewalls to make sure there are no gouges, cuts,
bulges, cracks or other irregularities.
Some spare tires require higher inflation pressure.
Glossary of Terms
- Tire Placard: A label indicating the OE tire sizes, recommended
inflation pressure, and the maximum weight the vehicle can carry.
- Tire Identification Number (TIN): A number on the sidewall of each
tire providing information about the tire brand and manufacturing
plant, tire size, and date of manufacture.
- Inflation Pressure: A measure of the amount of air in a tire.
- kPa: Kilopascal, the metric unit for air pressure.
- psi: Pounds per square inch, the English unit for air pressure.
- B-pillar: The structural member at the side of the vehicle behind the
front door.
- Original Equipment (OE): Describes components originally
equipped on the vehicle.
- Vehicle Load Limit: The maximum value of the combination weight
of occupants and cargo.
- Bead Area of the Tire: Area of the tire next to the rim.
- Sidewall Area of the Tire: Area between the bead area and the
tread.
- Tread Area of the Tire: Area on the perimeter of the tire that contacts
the road when it’s mounted on the vehicle.
- Seating capacity means the total allowable number of vehicle occupants.
Seating capacity is described on the tire label.
- Production options weight is the combination weight of installed
regular production options weighing over 2.3 kilograms in excess of
the standard items which they replace, and not previously considered in the
curb weight or accessory weight, including heavy duty
brakes, ride levelers, roof rack, heavy duty battery, and special trim.
- Rim is the metal support (wheel) for a tire or a tire and tube assembly
upon which the tire beads are seated.
Federal law requires tire manufacturers to place standardized
information on the sidewall of all tires. This information identifies and
describes the fundamental characteristics of the tire
and also provides a tire identification number for safety standard certification
and in case of a recall...
Improper or inadequate vehicle maintenance can cause tires to wear
abnormally. Here are some important maintenance points:
Tire Inflation Pressure
Inspect all tire pressure monthly (including the spare) when the tires
are cold...
Other information:
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during radiator assembly removal/installation are shown below...
DESCRIPTION Problem Symptom Suspected Area Trouble Area
Engine does not crank
Engine cranks slowly
Auxiliary battery depletion
Starter malfunction
Starter system
Auxiliary battery depletion
Starter malfunction
Starter circuit
Excessive engine friction Engine Engine assembly
Starting time is long
Engine speed fluctuation due to abnormal combustion
Idle speed too low or high
The engine stalls immediately after starting
Strong engine vibration due to above symptoms
Ignition malfunction
Deviation in air fuel ratio (Excessive or insufficient intake air volume or fuel supply)
Insufficient compression
Changes in load from another system
Ignition system
Spark plug
Ignition coil assembly
Fuel system
Direct fuel injector assembly
Port fuel injector assembly
Fuel pump assembly (for high pressure side)
Fuel pump (for low pressure side)
Fuel pump control circuit
Fuel suction plate sub-assembly
Fuel main valve assembly
Fuel line
Purge VSV system
Fuel quality (existence of foreign matter, degradation)
Intake and exhaust systems
Mass air flow meter sub-assembly
Intake system
(Air leaks or deposit accumulation)
Throttle body with motor assembly
Air fuel ratio sensor (sensor 1)
Air fuel ratio sensor (sensor 2)
Cam timing oil control solenoid assembly
Variable Valve Timing system (VVT system)
Other control systems
ECM
Wire harness or connector
Knock control sensor
Engine coolant temperature sensor
Immobiliser system
Engine
Water control valve
Engine assembly
Crankshaft position sensor
High load from another system
Air conditioning system
Power steering system
Electrical load signal system
SYMPTOM AND CAUSE OF SYSTEM MALFUNCTION HINT: The following are descriptions of the characteristics of each system malfunction...