Get MaintenanceandCare -> Engine Coolant Guide for Toyota Yaris 4 Door Fourth Generation (2021-2026)

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5-3. Owner Maintenance

Engine Coolant

Inspecting Coolant Level

Inspect the antifreeze protection and coolant level in the coolant res-

ervoir at least once a year—at the beginning of the winter season—

and before traveling where temperatures may drop below freezing.

Inspect the condition and connections 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.

1

2

3

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 protection and to bring the level to F.

Securely tighten the coolant reservoir 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.

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)

399

5-3. Owner Maintenance

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 before 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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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)

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5-3. Owner Maintenance

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/YARIS HATCHBACK

is required when replacing engine coolant. Using engine coolant that is not spe-

cifically 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.

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)

MaintenanceandCare -> Engine Coolant for Your Toyota Yaris 4 Door Fourth Generation (2021-2026)

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