2012 TOYOTA YARIS HYBRID cooling

5
641 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79ECheck if the cooling fan is operating.
If the fan is operating:
Wait until the hybrid system overheat warning light goes off
and then stop the hybrid system.
If the warning light does not go off, call any authorized Toyota
dealer or repairer, or another duly qualified and equipped pro-
fessional.
If the fan is 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.
Add power control unit coolant if
necessary.
Water can be used in an emer-
gency if power control unit cool-
ant is unavailable. (P. 479)
Have the vehicle inspected at the nearest authorized Toyota dealer or
repairer, or another duly qualified and equipped professional as soon
as possible.

642 5-2. Steps to take in an emergency
YARIS_F (including HV)_WE_52C79E
Overheating
The following symptoms may occur when your vehicle is overheating:
Hybrid system output decreases.
Steam comes out from the engine area.
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.
For vehicles with a hybrid system, there are times when the gasoline
engine automatically starts to run or the cooling fan suddenly start to oper-
ate. Do not touch or approach the rotating parts of the belt or fan. Doing so
may lead to fingers, clothes or tools getting caught, resulting in 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.

5
643 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
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

667 6-1. Specifications
6
Vehicle specifications
YARIS_F (including HV)_WE_52C79E
Cooling system
Capacity
(Reference)
1KR-FE
engine4.5 L (4.8 qt., 4.0 Imp. qt.)
1NR-FE
engineVehicles with a Multidrive
4.8 L (5.1 qt., 4.2 Imp. qt.)
Vehicles with a manual transmission
4.6 L (4.9 qt., 4.0 Imp. qt.)
1ND-TV
engineVehicles without a power heater
4.5 L (4.8 qt., 4.0 Imp. qt.)
Vehicles with a power heater
4.9 L (5.2 qt., 4.3 Imp. qt.)
1NZ-FXE
engineGasoline engine
4.5 L (4.8 qt., 4.0 Imp. qt.)
Power control unit
1.6 L (1.7 qt., 1.4 Imp. qt.)
Coolant typeUse either of the following:
• “Toyota Super Long Life Coolant”
• A similar high-quality ethylene glycol-based non-
silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid
technology
Do not use plain water alone.

688 Alphabetical index
YARIS_F (including HV)_WE_52C79E
Brake
Fluid ...................................... 671
Parking brake ........................ 271
Brake assist.............................. 326
Break-in tips ............................. 209
Brightness control
Instrument panel light
control ................................. 291
Care
Exterior.................................. 446
Interior ................................... 451
Seat belts .............................. 452
CD player .................................. 385
Chains ....................................... 338
Child-protectors ....................... 117
Child restraint system
Baby seats, definition ............ 181
Baby seats, installation ......... 190
Child seats, definition ............ 181
Child seats, installation ......... 190
Installing CRS with ISOFIX
rigid anchors ....................... 194
Installing CRS with seat
belts .................................... 191
Installing CRS with top
straps .................................. 195
Junior seats, definition .......... 181
Junior seats, installation........ 190Child safety
Airbag precautions ................ 172
Battery precautions ....... 484, 629
Child-protectors .................... 117
Child restraint system ........... 181
How your child should wear
the seat belt ........................ 136
Installing child restraints ....... 190
Power window lock switch .... 147
Power window precautions ... 150
Removed key battery
precautions ......................... 509
Seat belt precautions ............ 137
Seat heater
precautions ......................... 435
12-volt battery
precautions ................. 492, 634
Cigarette lighter ....................... 431
Cleaning
Exterior ................................. 446
Interior................................... 451
Seat belts .............................. 452
Clock ......................................... 428
Condenser ................................ 481
Cooling system
Engine overheating ............... 635
Hybrid system overheating ... 639
Cruise control
Cruise control........................ 311
Indicator ................................ 311
Cup holders.............................. 422
Curtain shield airbags ............. 166
Customizable features ............ 682
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