TOYOTA AURIS HYBRID 2012 Owners Manual

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5-2. Steps to take in an emergency
When trouble arises
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If your vehicle overheats
Correction procedures
If the top segments of the engine coolant temperature gauge
are flashing
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the hybrid system. Carefully lift the hood after the
steam subsides and then restart the hybrid system.
If you do not see steam:
Leave the hybrid system operating and carefully lift the
hood.
The following may indicate that your vehicle is overheating:
The top segments of the engine coolant temperature gauge are
flashing:
The engine may be overheating.
“HYBRID SYSTEM OVERHEAT” is shown on the multi-informa-
tion display:
The power control unit may be overheating.
Follow the correction procedure as described below.
STEP1
STEP2

482 5-2. Steps to take in an emergency
UK_AURIS_HV_EECheck to see if the cooling fans are operating.
If the fans are operating:
Wait until the high engine coolant temperature warning light
goes off and then stop the hybrid system.
If the fans are not operating:
Stop the hybrid system immediately and call any authorized
Toyota dealer or repairer, or another duly qualified and
equipped professional.
After the hybrid system has
cooled down sufficiently, check
the engine coolant level and
inspect the radiator core (radia-
tor) for any leaks.
If necessary, add engine coolant
up to the “FULL” line.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. (P. 498)
STEP3
STEP4
STEP5

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483 5-2. Steps to take in an emergency
When trouble arises
UK_AURIS_HV_EEIf “HYBRID SYSTEM OVERHEAT” is shown on the multi-infor-
mation display
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Leave the hybrid system operating and carefully lift the hood.
Check if the cooling fans are operating.
If the fans are operating:
Wait until “HYBRID SYSTEM OVERHEAT” disappears and then
stop the hybrid system.
If the message does not disappear, call any authorized Toyota
dealer or repair, or another duly qualified and equipped profes-
sional.
If the fans are not operating:
Stop the hybrid system immediately and call any authorized
Toyota dealer or repairer, or another duly qualified and equipped
professional.
After the hybrid system has
cooled down, check the power
control unit coolant level and
inspect the cooling system for
leaks.
STEP1
STEP2
STEP3
STEP4

484 5-2. Steps to take in an emergency
UK_AURIS_HV_EEIf necessary, add power control
unit coolant up to the “F” line.
Water can be used in an emer-
gency measure if power control
unit coolant is unavailable.
(P. 498)
Have the vehicle checked at the nearest authorized Toyota dealer or
repairer, or another duly qualified and equipped professional, as soon
as possible.
STEP5
Overheating
The following symptoms may occur when your vehicle is overheating:
Hybrid system output decrease.
Steam is coming from under the hood.

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485 5-2. Steps to take in an emergency
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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 injury such as burns.
With a hybrid vehicle, there are times when the gasoline engine automati-
cally starts to run or the cooling fans suddenly start to operate. Do not
touch or approach the rotating parts of the belt or fans. Doing so may lead
to fingers, clothes or tools getting caught, resulting in an accidental injury.
Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
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.

486
5-2. Steps to take in an emergency
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If the vehicle becomes stuck
When changing the shift position
Depress the brake pedal and ensure that the vehicle has stopped com-
pletely before changing the shift position. Failure to do so could cause the
rejection function to be activated, canceling the shift position change, or
causing the shift position to change to N automatically.
CAUTION
When attempting to free a stuck vehicle
If you choose to rock the vehicle back and forth to free it, make sure the sur-
rounding area is clear, to avoid striking other vehicles, objects or persons.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.
When changing the shift position
Be careful not to change the shift position with the accelerator pedal
depressed.
This may lead to unexpected rapid acceleration of the vehicle that may
cause an accident and result in death or serious injury.
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt, or snow.
Set the parking brake, change the shift position to P and
stop the hybrid system.
Remove the mud, snow, or sand from around the stuck tire.
Place wood, stones or some other material to help provide
traction under the tires.
Restart the hybrid system.
Make sure to change the shift position to D or R, release
the parking brake, and then carefully apply the accelerator
to free the vehicle.STEP1
STEP2
STEP3
STEP4
STEP5

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NOTICE
To avoid damaging the transmission and other components
Avoid spinning the wheels.
If the vehicle remains stuck after trying these procedures, the vehicle may
require towing to be freed.

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5-2. Steps to take in an emergency
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If your vehicle has to be stopped in an emergency
Only in an emergency, such as if it becomes impossible to stop the
vehicle in the normal way, stop the vehicle using the following pro-
cedure:
Steadily step on the brake pedal with both feet and firmly
depress it.
Do not pump the brake pedal repeatedly as this will increase the
effort required to slow the vehicle.
Change the shift position to N.
If the shift position can be changed to N
After slowing down, stop the vehicle in a safe place by the
road.
Stop the hybrid system.
If the shift position cannot be changed to N
Keep depressing the brake pedal with both feet to reduce
vehicle speed as much as possible.
Stop the hybrid system by
pressing and holding the
“POWER” switch for 3 consec-
utive seconds or more.
Stop the vehicle in a safe place by the road.
STEP1
STEP2
STEP3
STEP4
STEP3
Press and hold for 3 seconds or more
STEP4
STEP5

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489 5-2. Steps to take in an emergency
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CAUTION
If the hybrid system has to be turned off while driving
Power assist for the brakes and steering wheel will be lost, making the brake
pedal harder to depress and the steering wheel heavier to turn. Decelerate
as much as possible before turning off the hybrid system.

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