2012 TOYOTA YARIS HYBRID engine overheat

352 2-5. Driving information
YARIS_F (including HV)_WE_52C79ETransmission information
Vehicles with a Multidrive and multi-mode manual transmission:
To maintain engine braking efficiency, when using engine braking,
do not use the transmission in D. Transmission shift gear position
must be in 4 in the M mode. (P. 255, 260)
Vehicles with a manual transmission:
To maintain engine braking efficiency, when using engine braking,
do not use the transmission in 5 and 6 (vehicles with a 6-speed
manual transmission) gear. (P. 265)
If the engine overheats
Towing a loaded trailer up a long, steep incline in temperatures
exceeding 30C (85F) may result in the engine overheating. If the
high engine coolant temperature warning light flashes or comes
on, turn the air conditioning off immediately, leave the road and
stop the vehicle in a safe place. (P. 635)
When parking the vehicle
Always place wheel chocks under the wheels of both the vehicle
and trailer. Firmly set the parking brake and shift the shift lever to P
for Multidrives, E, M or R for multi-mode manual transmissions,
and 1 or R for manual transmissions.

431
3-5. Other interior features
3
Interior features
YARIS_F (including HV)_WE_52C79E
Cigarette lighter
: If equipped
The cigarette lighter can be used when
Except hybrid vehicle
Vehicles without a smart entry & start system:
The engine switch is in the “ACC” or “ON” position.
Vehicles with a smart entry & start system:
The “ENGINE START STOP” switch is in ACCESSORY or IGNITION ON
mode.
Hybrid vehicle
Vehicles without an electronic key:
The engine switch is in the “ACC” or “ON” position.
Vehicles with an electronic key:
The “POWER” switch is in ACCESSORY or ON mode.
CAUTION
To avoid burns or fires
Do not touch the metal parts of the cigarette lighter.
Do not hold the cigarette lighter down. It could overheat and cause a fire.
Do not insert anything other than the cigarette lighter provided into the cig-
arette lighter outlet. Doing so may deform the outlet and make the ciga-
rette lighter pop out of the outlet or become difficult to take out.
Push the cigarette lighter.
The cigarette lighter will pop up
when it is ready for use.

435 3-5. Other interior features
3
Interior features
YARIS_F (including HV)_WE_52C79E
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 the seat heater more than necessary. Doing so may cause
minor burns or overheating.
NOTICE
To prevent seat heater damage
Do not put heavy objects that have an uneven surface on the seat and do
not stick sharp objects (needles, nails, etc.) into the seat.
To prevent battery discharge (except hybrid vehicle)
Turn the seat heaters off when the engine is not running.
To prevent 12-volt battery discharge (hybrid vehicle)
Do not use the power outlet longer than necessary when the hybrid system
is off.

5When trouble arises
551
YARIS_F (including HV)_WE_52C79E
5-1. Essential information
Emergency flashers .......... 552
If your vehicle needs to
be towed ......................... 553
If you think something is
wrong .............................. 563
Fuel pump shut off system
(except hybrid vehicle
[gasoline engine only]).... 564
5-2. Steps to take in an
emergency
If a warning light turns on
or a warning buzzer
sounds... ........................ 565
If you have a flat tire
(vehicles with
a spare tire) .................... 582
If you have a flat tire
(vehicles with
an emergency tire
puncture repair kit).......... 594
If the engine will not start
(except hybrid vehicle).... 611
If the hybrid system will not
start (hybrid vehicle) ....... 614
If the shift lever cannot be
shifted from P (vehicles
with a hybrid transmission
or a Multidrive) ................ 616
If the shift lever cannot be
shifted (vehicles with
a multi-mode manual
transmission) .................. 617If you lose your keys ......... 618
If the electronic key does
not operate properly ....... 619
If the vehicle battery is
discharged
(except hybrid vehicle).... 624
If the vehicle’s 12-volt
battery is discharged
(hybrid vehicle) ............... 631
If your vehicle overheats
(except hybrid vehicle).... 635
If your vehicle overheats
(hybrid vehicle) ............... 639
If you run out of fuel and
the engine stalls
(diesel engine only) ........ 644
If the vehicle becomes
stuck ............................... 647
If your vehicle has to
be stopped in
an emergency ................. 650

566 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Stop the vehicle immediately.
The following warnings indicate the possibility of damage to the
vehicle 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.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
(Flashes or
comes on)High engine coolant temperature warning light
Indicates that the engine is overheating. (P. 635, 639)
• Flashes: Engine is overheating. Drive carefully.
• Comes on: Engine is overheated. Stop the vehicle.
Hybrid system warning light and warning buzzer
(hybrid vehicle)
Indicates a malfunction in the hybrid system.

568 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Have the vehicle inspected immediately.
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.
To prevent the clutch from overheating
Do not use the accelerator pedal or starting assist system to hold the
vehicle on a hill.
On an uphill incline, observe the following whenever possible:
• Maintain a safe distance from the vehicle ahead and avoid unneces-
sary starting off and stopping.
• Avoid using E mode on an uphill slope. This will help to avoid unneces-
sary gear changes.
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system (hybrid vehicle);
• The hybrid transmission control system (if equipped);
• The electronic engine control system;
• The electronic throttle control system;
• The electronic Multidrive control system (if equipped);
• The electronic multi-mode manual transmission control
system (if equipped);
• The emission control system; or
• The DPF catalytic converter (if equipped).
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.

5
571 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Low engine oil level warn-
ing light (diesel engine
only)
Indicates that engine oil
level is low.Check the level of engine
oil, and add if necessary.
Hybrid system overheat
warning light and warning
buzzer (hybrid vehicle)
Indicates that the hybrid
system has overheated.
This light may come on
when driving under severe
operating conditions. (For
example, when driving up
a long steep hill.)Stop and check. (P. 639)
P position request indica-
tor light (hybrid vehicle)
An attempt was made to
start the hybrid systemShift the shift lever to P.
P position request indica-
tor light and warning
buzzer (hybrid vehicle)
• Indicates that the driver’s
door was opened with the
shift lever in N, D or B.
• Indicates that the hybrid
battery (traction battery)
power has dropped
because a long period of
time has elapsed after
shifting the shift lever to N.• Shift the shift lever to P.
• Shift the shift lever to P and
restart the hybrid system
when starting the vehicle.
Warning lightWarning light/DetailsCorrection procedure

5
635
5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
If your vehicle overheats (except hybrid vehicle)
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam sub-
sides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the high engine coolant temperature warning light
goes off and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call any authorized Toyota
dealer or repairer, or another duly qualified and equipped
professional.
After the engine has cooled down sufficiently, check the
engine coolant level and inspect the radiator core (radiator)
for any leaks.
Gasoline engine