Cooling system TOYOTA YARIS 2015 3.G Owners Manual

1725-1. Using the air conditioning system and defogger
Air conditioning system
Vehicles without a cooling a nd dehumidification on/off button
Air conditioning controls
Air outlet selector dial
Fan speed control dial
Temperature control dial Rear window defogger switch
Outside/recirculated air mode
button1
2
3
4
5

1735-1. Using the air conditioning system and defogger
5
Interior features
Vehicles with a cooling and dehumidification on/off button
Air outlet selector dial
Fan speed control dial
Temperature control dial
Cooling and dehumidification
on/off button Rear window defogger switch
Outside/recirculated air mode
button
1
2
3
4
5
6

1745-1. Using the air conditioning system and defogger
■Adjusting the temperature setting
Vehicles without the button
Turn the temperature control dial clockwise to increase the temper-
ature.
Vehicles with the button
To adjust the temperature setting, turn the temperature control dial
clockwise (warm) or counterclockwise (cool).
If is not pressed, the system will blow ambient temperature air or
heated air.
For quick cooling, turn the temperature control dial to “MAX A/C” posi-
tion and set the outside/recirculated ai r mode button to recirculated air
mode.
■
Fan speed setting
To adjust the fan speed, turn the fan speed control dial clockwise
(increase) or counterclockwise (decrease).
Turning the dial to “0” turns off the fan.
■
Change the airflow mode
To select the air outlets, set the
air outlet selector dial to the
desired position.
The positions between the air
outlet selections can also be
selected for more delicate
adjustment.
Air flows to the upper body
Air flows to the upper body
and feet
Air flows to the feet
Air flows to the feet and the windshield defogger operates
The windshield defogger operates1
2
3
4
5

1785-1. Using the air conditioning system and defogger
■Fogging up of the windows
●Vehicles with the button: The windows will easily fog up when the
humidity in the vehicle is high. Turning on will dehumidify the air from
the outlets and defog the windshield effectively.
● Vehicles with the button: If you turn off, the windows may fog up
more easily.
● The windows may fog up if the recirculated air mode is used.
■ Outside/recirculated air mode
When driving on dusty roads such as tunnels or in heavy traffic, set the out-
side/recirculated air mode button to the recirculated air mode. This is effective
in preventing outside air from entering the vehicle interior. During cooling
operation, setting the recirculated air mode will also cool the vehicle interior
effectively.
■ When the indicator light on goes off by itself (vehicles with the
button)
Press to turn off the dehumidification function and turn it on again. There
may be a problem in the air conditioning system if the indicator light goes off
again. Turn the air conditioning system off and have it inspected by your Toy-
ota dealer.
■ When the outside temperature falls to nearly 32 F (0 C) (vehicles with
the button)
The dehumidification function may not operate even when is pressed.
■ Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
● During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.
● To reduce potential odors from occurring:
It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
■ Air conditioning filter
P. 238

2176-3. Do-it-yourself maintenance
6
Maintenance and care
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
Except Canada
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -31 F [-35 C])
Canada
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized water. (Minimum temperature: -44 F [-42 C])
For more details about coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, radiator
cap, drain cock and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.
WARNING
■When the engine is hot
Do not remove the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

3017-2. Steps to take in an emergency
7
When trouble arises
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fan opera tes and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning system is turned on immedi-
ately 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.)
If the fan is not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fan is operating:
Have the vehicle in spected at the nearest Toyota dealer.
5
WARNING
■To prevent an accident or injury 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 (especially a tie, a scarf or a muffler) away from
the fan and belts while the engine is operating.
● Do not loosen the radiator cap or the reservoir cap while the engine and\
radiator are hot.
6
7

3027-2. Steps to take in an emergency
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 any coolant additives.

3118-1. Specifications
8
Vehicle specifications
Oil viscosity (5W-30 is explained here as an example): • The 5W in 5W-30 indicates the characteristic of the oil which
allows cold startability. Oils wi th a lower value before the W allow
for easier starting of the engine in cold weather.
• The 30 in 5W-30 indicates the viscosity characteristic of the oil when the oil is at high temperature. An oil with a higher viscosity
(one with a higher value) may be better suited if the vehicle is
operated at high speeds, or under extreme load conditions.
How to read oil container labels:
The International Lubricant
Specification Advisory Commit-
tee (ILSAC) Certification Mark
is added to some oil containers
to help you select the oil you
should use.
Cooling system
Capacity
(Reference)
Automatic transmission
4.9 qt. (4.6 L, 4.0 Imp.qt.)
Manual transmission
5.0 qt. (4.7 L, 4.1 Imp.qt.)
Coolant type
Use 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.

356Alphabetical index
Care................................... 194, 197Aluminum wheels.................. 195
Exterior ................................. 194
Interior................................... 197
Seat belts .............................. 198
Chains....................................... 168
Child restraint system ............... 53 Infant seats, definition ............. 54
Infant seats, installation .......... 59
Convertible seat, definition ..... 54
Convertible seat,installation ...................... 59, 60
Installing CRS with LATCH
anchors................................. 58
Installing CRS with seat belts .............................. 59
Installing CRS with top tether strap ........................... 63
Booster seats, definition ......... 54
Booster seats, installation ....... 62
Child safety ................................ 52 Airbag precautions .................. 36
Back door precautions ............ 95
Battery precautions ............... 220
Child restraint system ............. 53
How your child should wear
the seat belt .......................... 29
Installing child restraints ......... 57
Power window lock switch .... 113
Power window precautions ... 114
Rear door child-protectors ...... 92
Removed key battery
precautions ......................... 242
Seat belt precautions .............. 30
Child-protectors......................... 92
Cleaning ........................... 194, 197 Aluminum wheels.................. 195
Exterior ................................. 194
Interior................................... 197
Seat belts .............................. 198 Clock........................................... 80
Clutch ....................................... 313
Condenser................................ 218
Coolant ..................................... 216
Capacity................................ 311
Checking............................... 216
Preparing and checking before winter ...................... 167
Cooling system........................ 216 Engine overheating............... 300
CRS (Child Restraint System) .................................... 53
Cruise control .......................... 158
Warning lights ....................... 274
Cup holders ............................. 185
Curtain shield airbags............... 34
Customizable features ............ 333
Defogger Outside rear view mirrors ..... 176
Rear window ......................... 176
Windshield ............................ 175
Dimensions .............................. 306
Display Drive information .................... 79
Multi-information display ......... 78
Do-it-yourself maintenance .... 206
Door lock
Back door ............................... 94
Side doors .............................. 89
Wireless remote control .......... 85
Doors Back door ............................... 94
Door glasses......................... 113
Door lock ................................ 91
Open door warning buzzer ... 274
Open door warning light ....... 274
Outside rear view mirrors ..... 111
Rear door child-protector ........ 92
Side doors .............................. 89
Side windows........................ 113
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D