cooling TOYOTA YARIS 2017 Owners Manual

3126-1. Using the air conditioning system and defogger
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Manual air conditioning system
The illustration below is for left-hand drive vehicles. Some dial and
button positions are reversed for right-hand drive vehicles.
: 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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3176-1. Using the air conditioning system and defogger
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Interior features
YARIS_F_OM_Europe_OM52J20E
■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 dealer or repair er, or another duly qualified and equipped
professional.
■ 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.

3216-1. Using the air conditioning system and defogger
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Interior features
YARIS_F_OM_Europe_OM52J20E
■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.
■Adjusting the temperature for driver and passenger seats sep-
arately (“DUAL” mode)
To turn on the “DUAL” mode, perform any of the following proce-
dure:
● Press .
● Adjust the passenger’s side temperature setting.
The indicator comes on when the “DUAL” mode is on.
To turn off the “DUAL” mode, press the switch again.
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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3266-1. Using the air conditioning system and defogger
YARIS_F_OM_Europe_OM52J20E
■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 dealer or re pairer, or another duly qualified and
equipped professional.

3276-1. Using the air conditioning system and defogger
6
Interior features
YARIS_F_OM_Europe_OM52J20E
■ 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 condi tioning 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 refrain 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. 400
WARNING
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The
difference between the temperature of the outside air and that of the wind-
shield can cause the outer surface of the windshield to fog up, blocking your
vision.
■ When the outside rear view mirror defoggers (if equipped) are on
Do not touch the outside surface of the rear view mirrors, as they can
become very hot and burn you.
NOTICE
■ To prevent battery discharge
Do not leave the air conditioning syst em on longer than necessary when the
engine is stopped.

3607-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52J20E
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically 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. 375)
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. 375)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.

3667-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52J20E
Engine compar tment
■1KR-FE engine
Fuse boxes (P. 405)
Engine oil level dipstick
( P. 369)
Engine oil filler cap
( P. 371)
Battery ( P. 376)
Engine coolant reservoir
( P. 374)
Electric cooling fan
Condenser ( P. 375)
Radiator ( P. 375)
Washer fluid tank ( P. 379)
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3677-3. Do-it-yourself maintenance
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Maintenance and care
YARIS_F_OM_Europe_OM52J20E
■1NR-FE engine
Fuse boxes ( P. 405)
Engine oil filler cap
( P. 371)
Engine oil level dipstick
( P. 369)
Battery ( P. 376)
Engine coolant reservoir
( P. 374)
Electric cooling fan
Condenser ( P. 375)
Radiator ( P. 375)
Washer fluid tank ( P. 379)
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3687-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52J20E
■1ND-TV engine
Fuse boxes ( P. 405)
Engine oil filler cap
( P. 371)
Engine oil level dipstick
( P. 369)
Fuel filter ( P. 380)
Battery ( P. 376)
Intercooler ( P. 375)
Electric cooling fan
Condenser ( P. 375)
Radiator ( P. 375)
Engine coolant reservoir
( P. 374)
Washer fluid tank ( P. 379)
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3747-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52J20E
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the “LOW” line, add coolant up to the “FULL”
line. ( P. 493)
■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 dealer or
repairer, or another duly qualified and equipped professional.
■ 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 dealer or repairer, or
another duly qualified and equipped professional test the cap and check for
leaks in the cooling system.
Engine coolant
Gasoline engineDiesel engine
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