2013 TOYOTA YARIS HYBRID engine

634 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52D27EAdd coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
Gasoline engine
Diesel engine
Start the engine and turn the air conditioning system on to
check that the radiator cooling fan operates and to check for
coolant leaks from the radiator or hoses.
The fan operates when the air conditioning system is turned on
immediately after a cold start. Confirm that the fan is operating by
checking the fan sound and air flow. If it is difficult to check these,
turn the air conditioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)

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635 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52D27EIf the fan is not operating:
Stop the engine immediately and contact any authorized
Toyota dealer or repairer, or another duly qualified and
equipped professional.
If the fan is operating:
Have the vehicle inspected at the nearest authorized Toy-
ota dealer or repairer, or another duly qualified and
equipped professional.
CAUTION
To prevent an accident or injury when inspecting under the hood of
your vehicle
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, caus-
ing serious injuries such as burns.
Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fan 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.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. 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 commercially available coolant additives.

636
5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52D27E
If your vehicle overheats (hybrid vehicle)
Correction procedures
If the high engine coolant temperature warning light comes on
or flashes
Stop the vehicle in a safe place and turn off the air condition-
ing system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system 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 autho-
rized Toyota dealer or repairer, or
another duly qualified and
equipped professional.
The following may indicate that your vehicle is overheating.
The high engine coolant temperature warning light (P. 562)
comes on or flashes, or a loss of hybrid system power is experi-
enced. (For example, the vehicle speed does not increase.)
The hybrid system overheat warning light (P. 567) comes on.
Steam comes out from under the hood.

5
639 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52D27EStart the hybrid system and check for the hybrid system over-
heat warning light.
If the warning light does not go off:
Stop the hybrid system and contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped
professional.
If the warning light goes off:
Have the vehicle inspected at the nearest authorized Toy-
ota dealer or repairer, or another duly qualified and
equipped professional.
CAUTION
To prevent an accident or injury when inspecting under the hood of
your vehicle
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, caus-
ing serious injuries such as burns.
Check that the “READY” indicator is off.
On hybrid vehicles, the gasoline engine may automatically start, or the
cooling fan may suddenly operate even if the gasoline engine stops. Do
not touch or approach rotating parts such as the fan, which may lead to fin-
gers or clothing (especially a tie, a scarf or a muffler) getting caught,
resulting in serious injury.
Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
Serious injuries, such as burns, may result from hot coolant and steam
released under pressure.

640 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52D27E
NOTICE
When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.
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 commercially available coolant additives

5
641
5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52D27E
If you run out of fuel and the engine stalls (diesel engine only)
If you run out of fuel and the engine stalls:
Refuel your vehicle.
Pull the rubber strip on the edge to unhook it from the
cover, and then push the tabs in and lift the cover off.
Left-hand drive vehicles
Right-hand drive vehicles

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643 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52D27E
NOTICE
When restarting the engine
Do not crank the engine before refueling and operating the priming pump.
This may damage the engine and fuel system.
Vehicles without a smart entry & start system: Do not crank the engine for
more than 30 seconds at a time. This may overheat the starter and wiring
system.
Start the engine. (P. 222, 226)
If the engine does not start after the above steps have been per-
formed, wait for 10 seconds and then try steps 3 and 5 again. If
the engine still does not start, contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
After starting the engine, depress the accelerator pedal lightly until
the engine runs smoothly.

644
5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52D27E
If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Vehicles with a hybrid transmission or a Multidrive: Stop the
engine (except hybrid vehicle) or hybrid system (hybrid
vehicle). Set the parking brake and shift the shift lever to P.
Vehicles with a multi-mode manual transmission or a man-
ual transmission: Stop the engine. Set the parking brake
and shift the shift lever to N.
Remove the mud, snow or sand from around the front
wheels.
Place wood, stones or some other material under the front
wheels to help provide traction.
Restart the engine (except hybrid vehicle) or hybrid system
(hybrid vehicle).
Vehicles with a hybrid transmission or a Multidrive: Shift the
shift lever to the D or R and carefully apply the accelerator
to free the vehicle.
Vehicles with a multi-mode manual transmission: Shift the
shift lever to E, M or R and carefully apply the accelerator to
free the vehicle.
Vehicles with a manual transmission: Shift the shift lever to
1 or R and carefully apply the accelerator to free the vehi-
cle.