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4235-3. Owner Maintenance
5
Maintenance and Care
After replacing the engine oil, have a repair shop such as your Toyota
dealer perform the initialization (engine oil data resetting) of the
recorded value. If the value recorded by the computer is not initialized,
the wrench indicator light may not turn off or it may turn on earlier than
normal.
● This procedure is intended for vehicles with the engine oil flexible mainte-
nance setting selected.
● The initialization (engine oil data resetting) of the recorded value can be per-
formed using the following procedure:
Switch the ignition OFF.
Vehicle Engine Control Unit Reset Procedure
Switch the ignition ON with the selec-
tor pressed, and press and hold the
selector for about 5 seconds until the
master warning light flashes.
After the master warning light
flashes for several seconds, the ini-
tialization is completed.
1
2
3
Selector
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4265-3. Owner Maintenance
YARIS iA_OM_OM99Q46z_(U)
WARNING
■Do not use a match or live flame in the engine compartment. DO NOT
ADD COOLANT WHEN THE ENGINE IS HOT
A hot engine is dangerous. If the engine has been running, parts of the
engine compartment can become very hot. You could be burned. Carefully
inspect the engine coolant in the coolant reservoir, but do not open it.
■ Pull over to a safe location, then switch the ignition to off and
make sure the fan is not running befo re attempting to work near the
cooling fan
Working near the cooling fan when it is running is dangerous. The fan could
continue running indefinitely even if the engine has stopped and the engine
compartment temperature is high. You could be hit by the fan and seriously
injured.
■ Do not remove either cooling system cap when the engine and
radiator are hot
When the engine and radiator are hot, scalding coolant and steam may
shoot out under pressure and cause serious injury.
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5-3. Owner Maintenance
Brake/Clutch Fluid
The brakes and clutch draw fluid from the same reservoir.
Inspect the fluid level in the reser-
voir regularly. It should be kept
between the MAX and MIN lines.
The level normally drops with
accumulated distance, a condition
associated with wear of brake and
clutch linings. If it is excessively
low, have the brak e/clutch system
inspected by your Toyota dealer.
Inspecting Brake/Clutch Fluid Level
WARNING
■ If the brake/clutch fluid level is low, have the brakes inspected
A low brake/clutch fluid level is dangerous.
A low level could indicate brake lining wear or a brake system leak which
could cause the brakes to fail and lead to an accident.
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5-3. Owner Maintenance
5
Maintenance and Care
Window Washer Fluid
Inspect fluid level in the washer
fluid reservoir; add fluid if neces-
sary.
Use plain water if washer fluid is unavailable.
But use only washer fluid in cold weather to prevent it from freezing.
State or local regulations may restrict the use of volatile organic compounds
(VOCs), which are commonly used as anti-freeze agents in washer fluid. A
washer fluid with limited VOC content should be used only if it provides ade-
quate freeze resistance for all regions and climates in which the vehicle will
be operated.
Inspecting Washer Fluid Level
E
WARNING
■Use only windshield washer fluid or plain water in the reservoir
Using radiator antifreeze as washer fluid is dangerous. If sprayed on the
windshield, it will dirty the windshield, affect your visibility, and could result
in an accident.
■ Using Washer Fluid Without Anti-f reeze Protection in Cold Weather
Operating your vehicle in temperatures below 40 °F (4 °C) using wa\
sher
fluid without anti-freeze protection is dangerous as it could cause impaired
windshield vision and result in an accident. In cold weather, always use
washer fluid with ant i-freeze protection.
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5-3. Owner Maintenance
Battery
Before performing battery mainte-
nance, remove the battery cover
by pressing the tab.Ta b
WARNING
■Wash hands after handling th e battery and related accessories
Battery posts, terminals and related accessories contain lead and lead com-
pounds, chemicals known to the State of California to cause cancer and
reproductive harm.
■ Read the following precautions carefully before using the bat-
tery or inspecting to ensu re safe and correct handling
■ Always wear eye protection wh en working near the battery
Working without eye protection is dangerous. Battery fluid contains SULFU-
RIC ACID which could cause blindness if splashed into your eyes. Also,
hydrogen gas produced during normal battery operation, could ignite and
cause the battery to explode.
■ Wear eye protection and prot ective gloves to prevent contact
with battery fluid
Spilled battery fluid is dangerous.
Battery fluid contains SULFURIC ACID which could cause serious injuries if
it gets in eyes, or on the skin or clothing. If this happens, immediately flush
your eyes with water for 15 minutes or wash your skin thoroughly and get
medical attention.
■ Always keep batteries out of the reach of children
Allowing children to play near batteri es is dangerous. Battery fluid could
cause serious injuries if it gets in the eyes or on the skin.
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YARIS iA_OM_OM99Q46z_(U)
4355-3. Owner Maintenance
5
Maintenance and CareTo get the best service from a battery:• Keep it securely mounted.
• Keep the top clean and dry.
• Keep terminals and connec- tions clean, tight, and coated
with petroleum jelly or terminal
grease.
• Rinse off spilled electrolyte immediately with a solution of
water and baking soda.
• If the vehicle will not be used for an extended time, disconnect the
battery cables and charge the battery every six weeks.
Contact your Toyota dealer for a battery replacement purchase.
WARNING
■ Keep flames and sparks away from open battery cells and do
not allow metal tools to contact the positive (+) or negative (-) terminal
of the battery when working near a ba ttery. Do not allow the positive (+)
terminal to contact the vehicle body
Flames and sparks near open battery cells are dangerous. Hydrogen gas,
produced during normal battery operation, could ignite and cause the bat-
tery to explode. An exploding battery can cause serious burns and injuries.
Keep all flames including cigarettes and sparks away from open battery
cells.
■ Keep all flames, including cigarettes, and sparks away from
open battery cells
Flames and sparks near open battery cells are dangerous. Hydrogen gas,
produced during normal battery operation, could ignite and cause the bat-
tery to explode. An exploding battery can cause serious burns and injuries.
Battery Maintenance
Battery Replacement
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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
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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.