2012 TOYOTA AURIS overheating

3604-5. Using the driving support systems
UK_AURIS/AURIS_HV_EE (OM12E33E)Reduced effectiveness of the EPS system
Except hybrid model: The effectiveness of the EPS system is reduced to pre-
vent the system from overheating when there is frequent steering input over
an extended period of time. The steering wheel may feel heavy as a result.
Should this occur, refrain from excessive steering input or stop the vehicle
and turn the engine off. The EPS system should return to normal within 10
minutes.
Hybrid model: The effectiveness of the EPS system is reduced to prevent the
system from overheating when there is frequent steering input over an
extended period of time. The steering wheel may feel heavy as a result.
Should this occur, refrain from excessive steering input or stop the vehicle
and turn the hybrid system off. The EPS system should return to normal
within 10 minutes.
Operating conditions of emergency brake signal
When the following three conditions are met, the emergency brake signal will
operate:
The emergency flashers are off.
Actual vehicle speed is over 55 km/h (35 mph).
The brake pedal is depressed in a manner that cause the system to judge
from the vehicle deceleration that this is a sudden braking operation.
Automatic system cancelation of emergency brake signal
The emergency brake signal will turn off in any of the following situations:
The emergency flashers are turned on.
The brake pedal is released.
The system judges from the vehicle deceleration that is not a sudden brak-
ing operation.
CAUTION
The ABS does not operate effectively when
The limits of tire gripping performance have been exceeded (such as
excessively worn tires on a snow covered road).
The vehicle hydroplanes while driving at high speed on wet or slick roads.

4665-5. Other interior features
UK_AURIS/AURIS_HV_EE (OM12E33E)
The seat heaters can be used when
Vehicles without a smart entry & start system (except hybrid model)
The engine switch is in the “ON” position.
Vehicles with a smart entry & start system (except hybrid model)
The engine switch is in IGNITION ON mode.
Hybrid model
The power switch is in ON mode.
When not in use
Put the switch in the neutral position. The indicator will turn off.
CAUTION
Burns
Use caution when seating the following persons in a seat with the seat
heater on to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the physically chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.
Do not use seat heater more than necessary. Doing so may cause minor
burns or overheating.

5867-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Stop the vehicle immediately.
Warning lightWarning light/Details
Charging system warning light (vehicles with a drive
monitor display)
Indicates a malfunction in the vehicle’s charging system
Low engine oil pressure warning light (vehicles with a
drive monitor display)
Indicates that the engine oil pressure is too low.
andHigh engine coolant temperature warning light (vehicles
with a drive monitor display)
Indicates that the engine is almost overheating. (P. 685)

5887-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
To prevent the clutch from overheating
Observe the following while driving.
Do not keep driving up a hill at low speeds.
Do not start off and stop repeatedly on an uphill.
Do not use the accelerator pedal or starting assist system to hold the vehicle
on a hill.
Failure to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional immedi-
ately.
Have the vehicle inspected by any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional
immediately.
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic Multidrive control system
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system
Electric power steering system warning light (warning
buzzer)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system

6007-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
A buzzer sounds and a warning message is shown on the multi-infor-
mation display. Failure to investigate the cause of the following warn-
ings may lead to the system operating abnormally and possibly cause
an accident. Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
Indicates abnormal engine oil pressure
The warning light may come on if the engine oil
pressure is too low.
Indicates a malfunction in the vehicle’s charging
system.
• Indicates that the engine is almost overheat-
ing. (hybrid model) (P. 687)
• The power control unit may be overheating.
(hybrid model) (P. 687)
Have the vehicle inspected immediately.
Warning messageDetails
Warning messageDetails
Indicates a malfunction in the cruise control sys-
tem (if equipped)
• Press the “ON-OFF” button once to deacti-
vate the system, and then press the button
again to reactivate the system.
• A buzzer also sounds.
Indicates a malfunction in the Automatic High
Beam system (if equipped)
A buzzer also sounds.

6867-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
Have the vehicle inspected at the nearest any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional
as soon as possible.
Overheating
If you observe the following, your vehicle may be overheating:
Vehicles without a multi-information display: The high engine coolant tem-
perature warning light comes on or a loss of power is experienced.
Vehicles with a multi-information display: The high engine coolant tempera-
ture gauge enters the red zone or a loss of power is experienced.
Steam comes out from under the hood.
CAUTION
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 away from the fans, etc. while the engine is oper-
ating.
Do not loosen the coolant reservoir cap while the engine and radiator are
hot.
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 commercially available coolant additives.

6877-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
7
When trouble arises
The high engine coolant temperature display is shown on the multi-
information display:
The engine may be overheating.
“Hybrid System Overheat” is shown on the multi-information dis-
play:
The power control unit may be overheating.
If the high engine coolant temperature display is shown on the
multi-information display
Stop the vehicle in a safe place and turn off the air conditioning
system.
Check to see if steam is coming out from the engine area.
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.
Check to see if the cooling fans are operating.
If the fans are operating:
Wait until the high engine coolant temperature display disap-
pears 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.
If your vehicle overheats (hybrid model)
The following may indicate that your vehicle is overheating:
Correction procedures
1
2
3

6907-2. Steps to take in an emergency
UK_AURIS/AURIS_HV_EE (OM12E33E)
Overheating
If you observe the following, your vehicle may be overheating:
The high engine coolant temperature is shown on the multi-information dis-
play or a loss of power is experienced.
“Hybrid System Overheat” is shown on the multi-information display.
Steam comes out from under the hood.
CAUTION
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 away from the fans, etc. while the hybrid system
is operating.
For vehicles with a hybrid system, there are times when the gasoline
engine automatically 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
injury.
Do not loosen the coolant reservoir caps while the hybrid system and radi-
ator are hot.
High temperature steam or coolant could spray out.
NOTICE
When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently.
Adding cool coolant to a hot hybrid system 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.