cooling TOYOTA YARIS 2019 Owners Manual

4326-1. Using the air conditioning system and defogger
YARIS_F_OM_Europe_OM52K19E
Manual air conditioning system
: If equipped
Air conditioning controls
Air outlet selector dial
Outside/recirculated air mode
dial
Temperature control dial
Rear window defogger switch/
rear window defogger and out-
side rear view mirror defog-
gers switch (if equipped)
Fan speed control dial
Cooling and dehumidification
function on/off button (if
equipped)
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4376-1. Using the air conditioning system and defogger
6
Interior features
YARIS_F_OM_Europe_OM52K19E
■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 dial to the recirculated air mode. This is effective in
preventing outside air from entering the vehicle interior. During cooling opera-
tion, setting the recirculated air mode will also cool the vehicle interior effec-
tively.
■ 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 sy stem if the indicator light goes off
again. Turn the air conditioning system off and have it inspected by any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
■ When the outside temperature falls to nearly 0C (32F) (vehicles with
the button)
The dehumidification function may not operate even when is pressed.

4416-1. Using the air conditioning system and defogger
6
Interior features
YARIS_F_OM_Europe_OM52K19E
■Adjusting the temperature setting
To adjust the temperature set-
ting, turn the temperature con-
trol dial clockwise or
counterclockwise.
If is not pressed, the sys-
tem will blow ambient tempera-
ture air or heated air.
Cooling and dehumidification
function on/off button
Left-hand side temperature
control dial
Left-hand side temperature
display
Fan speed display
Air outlet display
Right-hand side temperature
display
Right-hand side temperature
control dial
Windshield defogger button
Rear window defogger switch/
rear window defogger and out-
side rear view mirror defog-
gers switch (if equipped)
Air outlet selector button
“OFF” button
Fan speed control button
Automatic mode button
Outside/recirculated air mode
button
Dual mode button
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4476-1. Using the air conditioning system and defogger
6
Interior features
YARIS_F_OM_Europe_OM52K19E
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after is pressed.
■ Fogging up of the windows
● 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 wind-
shield effectively.
● 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 effec-
tive in preventing outside air from entering the vehicle interior. During
cooling operation, setting the recirculat ed air mode will also cool the vehicle
interior effectively.
● Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.
■ When the outside temperature falls to nearly 0C (32F)
The dehumidification function may not operate even when is pressed.
■ When the indicator light on goes off by itself
Press to turn off the dehumidification function and turn it on again.
There may be a problem in the air condi tioning system if the indicator light
goes off again. Turn the air conditioning system off and have it inspected by
any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.

4486-1. Using the air conditioning system and defogger
YARIS_F_OM_Europe_OM52K19E
■ 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.
• The start timing of the blower may be delayed for a short period of time
immediately after the air conditioning system is started in AUTO mode.
■ Air conditioning system operations when the engine is stopped due to
the Stop & Start system (vehicles with a Stop & Start system)
When the engine is stopped due to Stop & Start system operations, the auto-
matic air conditioning cooling, heating and dehumidification functions turn off
and the fan speed is decreased according to the outside temperature etc. or
air blowing stops. To stop the air conditioning system from turning off, press
the Stop & Start cancel switch and refr ain from using the Stop & Start system.
■ An odor comes from the air conditioning system due to the Stop & Start
system operation (vehicles with a Stop & Start system)
When the engine is stopped due to the Stop & Start system, an odor caused
by moisture may be detected. This does not indicate a malfunction.
■ Air conditioning filter
 P. 529

4817-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_F_OM_Europe_OM52K19E
.
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become el ectrically energized. To avoid death
or serious injury, observe the following precautions.
■ When working on the engine compartment
● Keep hands, clothing and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc., right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel on the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
● Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. If fluid gets on your hands or in your eyes, flush the
affected area with clean water immediately.
If you still experience discomfort, consult a doctor.
■ When working near the electric cooling fan or radiator grille
Vehicles without a smart entry & start system
Be sure the engine switch is in the “LOCK” position.
With the engine switch in the “ON” position, the electric cooling fan may
automatically start to run if the air conditioning is on and/or the coolant tem-
perature is high. ( P. 497)
Vehicles with a smart entry & start system
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fan may
automatically start to run if the air conditioning is on and/or the coolant tem-
perature is high. ( P. 497)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.,
from getting in your eyes.

4877-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_F_OM_Europe_OM52K19E
Engine compartment
■1KR-FE engine
Fuse boxes (P. 536)
Engine oil level dipstick
( P. 490)
Engine oil filler cap
( P. 492)
Battery ( P. 498)
Engine coolant reservoir
( P. 495)
Electric cooling fan
Condenser ( P. 497)
Radiator ( P. 497)
Washer fluid tank ( P. 501)
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4887-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52K19E
■2NR-FKE engine
Fuse boxes ( P. 536)
Engine oil filler cap
( P. 492)
Engine oil level dipstick
( P. 490)
Battery ( P. 498)
Engine coolant reservoir
( P. 495)
Electric cooling fan
Condenser ( P. 497)
Radiator ( P. 497)
Washer fluid tank ( P. 501)
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4897-3. Do-it-yourself maintenance
7
Maintenance and care
YARIS_F_OM_Europe_OM52K19E
■1ND-TV engine
Fuse boxes ( P. 536)
Engine oil filler cap
( P. 492)
Engine oil level dipstick
( P. 490)
Fuel filter ( P. 502)
Battery ( P. 498)
Intercooler ( P. 497)
Electric cooling fan
Condenser ( P. 497)
Radiator ( P. 497)
Engine coolant reservoir
( P. 495)
Washer fluid tank ( P. 501)
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4967-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52K19E
■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.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -35 C [-31F])
For more details about coolant, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have any authorized Toyota retailer or Toyota autho-
rized repairer, or any reli able repairer test the cap and check for leaks in the
cooling system.
WARNING
■ When the engine is hot
Do not remove the radiator cap (gasoline engine), or the engine coolant res-
ervoir cap (diesel engine).
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.