Toyota Hilux (2017 year). Manual - part 151

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8-2. Steps to take in an emergency

WARNING

■

When exchanging the battery

●

When the vent plug and indicator are close to the hold down bracket, the
battery fluid (sulfuric acid) may leak.

●

For information regarding battery replacement, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.

■

To prevent damage to the vehicle (vehicles with manual transmission)
Do not pull- or push-start the vehicle as the three-way catalytic converter or
catalytic converter may overheat and become a fire hazard.

NOTICE

■

When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fan or belt.

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8-2. Steps to take in an emergency

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If your vehicle overheats

● The needle of the engine coolant temperature gauge (→P. 128)

enters the red zone or a loss of engine power is experienced. (For
example, the vehicle speed does not increase.)

● Steam comes out from under the hood.

Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the engine.
If you see steam: 
Carefully lift the hood after the steam subsides.
If you do not see steam: 
Carefully lift the hood.
After the engine has cooled down sufficiently, inspect the hoses and
radiator core (radiator) for any leaks.

Radiator
Cooling fan

If a large amount of coolant
leaks, immediately contact any
authorized Toyota dealer or
repairer, or another duly quali-
fied and equipped professional.

The following may indicate that your vehicle is overheating.

Correction procedures

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8-2. Steps to take in an emergency

The coolant level is satisfactory if it is between the “F” and “L” lines
on the reservoir.

Reservoir
“F” line
“L” line
Radiator cap (if equipped)

Add engine coolant if necessary. (

→P. 636)

Water can be used in an emergency if engine coolant is unavailable. 

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Gasoline engine

X

Diesel engine

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Gasoline engine

X

Diesel engine

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8-2. Steps to take in an emergency

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Start the engine to check that the radiator cooling fan operates and
to check for coolant leaks from the radiator or hoses.
If the fan is not operating: 
Stop the engine immediately and contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
If the fan is operating: 
Have the vehicle inspected at the nearest authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.

WARNING

■

When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.

●

If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.

●

Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fans and belts. Failure to do so may cause the hands or clothing to be
caught, resulting in serious injury.

●

Do not loosen the radiator cap or the coolant reservoir cap while the
engine and radiator are hot. High temperature steam or coolant could
spray out.

NOTICE

■

When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding
cool coolant to a hot engine too quickly can cause damage to the engine.

■

To prevent damage to the cooling system
Observe the following precautions:

●

Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).

●

Do not use any coolant additive.

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