2018 TOYOTA YARIS iA engine

YARIS iA_OM_OM99Q46z_(U)
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.
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Selector

4245-3. Owner Maintenance
YARIS iA_OM_OM99Q46z_(U)
Be sure the vehicle is on a level surface.
Warm up the engine to normal operating temperature.
Turn it off and wait at least 5 minutes for the oil to return to the oil
pan.
Pull out the dipstick, wipe it
clean, and reinsert it fully.Full
OK
Low
Pull it out again and examine the leve l. The level is normal if it is
between Low and Full.
If it is near or below Low, add enough oil to bring the level to Full.
Make sure the O-ring on the dipstick is positioned properly before
reinserting the dipstick.
Reinsert the dipstick fully.
Inspecting Engine Oil Level
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NOTICE
Do not overfill the engine oil. This may cause engine damage.
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YARIS iA_OM_OM99Q46z_(U)
5-3. Owner Maintenance
5
Maintenance and Care
Engine Coolant
Inspect the antifreeze protection and coolant level in the coolant res-
ervoir at least once a year—at t he beginning of the winter season—
and before traveling where temperatures may drop below freezing.
Inspect the condition and connecti ons of all cooling system and
heater hoses.
Replace any that are swollen or deteriorated.
The coolant should be at full in the
radiator and between the F and L
marks on the coolant reservoir
when the engine is cool.
Cooling fan
Cooling system cap
Coolant reservoir
If it is at or near L, add enough coolant to the coolant reservoir to pro-
vide freezing and corrosion protecti on and to bring the level to F.
Securely tighten the coolant reserv oir tank cap after adding coolant.
If the coolant reservoir is empty or new coolant is required frequently,
consult your Toyota dealer.
Changing the coolant should be done by your Toyota dealer.
Inspecting Coolant Level
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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.

YARIS iA_OM_OM99Q46z_(U)
4275-3. Owner Maintenance
5
Maintenance and Care
NOTICE
●Radiator coolant will damage paint. Rinse it off quickly if spilled.
● Use only soft (deionized) water in the coolant mixture. Water that contains
minerals will cut down on the coolant’s effectiveness.
● Do not add only water. Always add a proper coolant mixture.
● The engine has aluminum parts and must be protected by an ethylene-gly-
col-based coolant to prevent corrosion and freezing.
● DO NOT USE coolants Containing Alcohol, methanol, Borate or Silicate.
These coolants could damage the cooling system.
● DO NOT MIX alcohol or methanol with the coolant. This could damage the
cooling system.
● Do not use a solution that contains more than 60% antifreeze.
This would reduce effectiveness.
● Use of engine coolant specifically designed for the YARIS iA is required
when replacing engine coolant. Using engine coolant that is not specifi-
cally designed for this vehicle may cause serious damage to the engine
and cooling system. For questions on how to obtain this specially
designed coolant, contact your Toyota dealer.

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YARIS iA_OM_OM99Q46z_(U)
5-3. Owner Maintenance
Body Lubrication
All moving points of the body, such as door and hood hinges
and locks, should be lubricated each time the engine oil is
changed. Use a nonfreezing l ubricant on locks during cold
weather.
Make sure the hood’s secondary latch keeps the hood from
opening when the primary latch is released.

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YARIS iA_OM_OM99Q46z_(U)
5-3. Owner Maintenance
Key Battery Replacement
If the buttons on the smart key are inoperable and the operation indi-
cator light does not flash, the battery may be dead.
Replace with a new battery before the smart key becomes unusable.
The following conditions indicate that the battery power is low: • The KEY indicator light (green) flashes in the combination meter for about 30 seconds after the engine is turned off.
• The system does not operate and the operation indicator light on the smart key does not flash when the buttons are pressed.
• The system’s operational range is reduced.
Replacing the battery at your To yota dealer is recommended to pre-
vent damage to the key. If replacing the battery by yourself, follow the
instruction below.
■Replacing the key battery
Press the knob and pull out
the auxiliary key.
Twist a tape-wrapped flat-
head screwdriver in the
direction of the arrow and
open the cover slightly.
Knob1
Cover
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YARIS iA_OM_OM99Q46z_(U)
5-3. Owner Maintenance
5
Maintenance and Care
Fuses
■Replacing the fuses on the vehicle’s left side
If the electrical system does not work, first inspect the fuses on the
vehicle’s left side.
Make sure the ignition is switched off, and other switches are off.
Open the fuse panel cover.
Pull the fuse straight out with
the fuse puller provided on
the fuse block located in the
engine compartment.
Your vehicle’s electrical system is protected by fuses.
If any lights, accessories, or controls do not work, inspect the
appropriate circuit protector. If a fuse has blown, the inside ele-
ment will be melted.
If the same fuse blows again, avoid using that system and con-
sult your Toyota dealer as soon as possible.
Fuse Replacement
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