2020 TOYOTA YARIS HATCHBACK cooling

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
1232-4. Fuel and Emission
2
Before Driving
Engine Exhaust (Carbon monoxide)
WARNING
■Do not drive your vehicle if you smell exhaust gas inside the v ehicle
Engine exhaust gas is dangerous. This gas contains carbon monox ide
(CO), which is colorless, odorless, and poisonous. When inhaled , it can
cause loss of consciousness and death. If you smell exhaust gas inside the
vehicle, keep all windows fully open and contact your Toyota de aler immedi-
ately.
■ Do not run the engine when inside an enclosed area
Running the engine inside an enclosed area, such as a garage, i s danger-
ous. Exhaust gas, which contains poisonous carbon monoxide, cou ld easily
enter the cabin. Loss of consciousness or even death could occu r.
■ Open the windows or adjust the heating or cooling system to draw
fresh air when idling the engine:
Exhaust gas is dangerous. When the vehicle is stopped with the windows
closed and the engine running for a long time even in an open a rea,
exhaust gas, which contains poisonous carbon monoxide, could en ter the
cabin. Loss of consciousness or even death could occur.
■ Clear snow from underneath and around your vehicle, particularl y the
tail pipe, before starting the engine:
Running the engine when a vehicle is stopped in deep snow is da ngerous.
The exhaust pipe could be blocked by the snow, allowing exhaust gas to
enter the cabin. Because exhaust gas contains poisonous carbon monox-
ide, it could cause loss of consciousness or even death to occu pants in the
cabin.

163
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3-1. Start/Stop Engine
3
When Driving
Turning the Engine Off
Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to th e P position and set the parking brake.
Press the push button start to turn off the engine. The ignitio n posi-
tion is off.
● The cooling fan in the engine compartment could turn on for a f ew minutes
after the ignition is switched from ON to OFF, whether or not the A/C is on or
off, to cool the engine compartment quickly.
● When the push button start is pressed from ON to ACC or OFF, th e KEY
indicator light (green) may flash for approximately 30 seconds indicating
that the remaining battery power of the key is low.
Replace with a new battery before the key becomes unusable.
Refer to Key Battery Replacement on P. 410.
● Automatic transaxle:
If the engine is turned off while the selector lever is in a po sition other than
P, the ignition switches to ACC.
Continuously pressing the push button start or quickly pressing it two
or more times while the engine is running or the vehicle is bei ng
driven will turn the engine off immediately. The ignition switc hes to
ACC.
WARNING
■ Do not stop the engine while the vehicle is moving
Stopping the engine while the vehicle is moving for any reason other than in
an emergency is dangerous. Stopping the engine while the vehicl e is mov-
ing will result in reduced braking ability due to the loss of power braking,
which could cause an accident and serious injury.
NOTICE
When leaving the vehicle, make sure the push button start is off.
Emergency Engine Stop
1
2
3

256
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
4-1. Climate Control System
Operating Tips
• Operate the climate control system with the engine running.
• To prevent the battery from being discharged, do not leave the fan
control dial on for a long perio d of time with the ignition switched
ON when the engine is not running.
• Clear all obstructions such as l eaves, snow and ice from the hood
and the air inlet in t he cowl grille to imp rove the system efficiency.
• Use the climate control system to defog the windows and dehumi d-
ify the air.
• The recirculate mode should be used when driving through tunne ls
or while in a traffic jam, or when you would like to shut off o utside
air for quick cooling of the interior.
• Use the outside air position for ventilation or windshield defrosting.
• If the vehicle has been parked in direct sunlight during hot weather,
open the windows to let warm air escape, then run the climate con-
trol system.
• Run the air conditioner about 10 minutes at least once a month to
keep internal parts lubricated.
• Have the air conditioner checke d before the weather gets hot. Lack
of refrigerant may make the ai r conditioner less efficient.
The refrigerant specifications
are indicated on a label
attached to the inside of the
engine compartment. Check
the label before refilling the
refrigerant. If the wrong type of
refrigerant is used, it could
result in a serious malfunction
of the air conditioner.
For details, consult your Toyota
dealer.
Label

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
2634-1. Climate Control System
4
Interior Features
Set the mode selector dial to the position.
Set the temperature control dial to the cold position.
Set the fan control dial to the desired speed.
Turn on the air conditioner by pressing the A/C switch.
After cooling begins, adjust the fan control dial and temperature
control dial as needed to maintain maximum comfort.
● When maximum cooling is desired, set the temperature control di al to the
extreme cold position and set the air intake selector to the re circulated air
position, then turn the fan control dial fully clockwise.
● If warmer air is desired at floor level, set the mode selector dial to the
position and adjust the temperature control dial to maintain ma ximum com-
fort.
● The air to the floor is warmer than air to the face (except when the tempera-
ture control dial is set at the extreme hot or cold position).
Cooling
NOTICE
If the air conditioner is used while driving up long hills or in heavy traffic,
monitor the engine coolant temperature warning light to see if it is illumi-
nated or flashing ( P. 164).
The air conditioner may cause engine overheating. If the warnin g light is
illuminated or flashing, turn the air-conditioning off ( P. 484).
1
2
3
4
5

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
2674-1. Climate Control System
4
Interior Features
■Temperature control dial
This dial controls temperature. Turn it clockwise for hot and coun-
terclockwise for cold.
■Fan control dial
The fan has seven speeds.
● AUTO position
The amount of airflow will be aut omatically controlled in accor-
dance with the set temperature.
● Except AUTO position
The airflow amount can be adjusted to the desired level by turn -
ing the dial.
● 0 position
To turn off the system, s et the dial to 0 position.
■Mode selector dial
Turn the mode selector dial to select airflow mode (P. 258).
● AUTO position
The airflow mode automatically a djusts to the selected tempera-
ture.
● Except AUTO position
The desired airflow position can be selected by turning the dial.
■A/C switch
The air conditioner (cooling/de humidifying functions) can be tu rned
on or off by pressing the switch while the fan control dial is at a
position other than 0.
The indicator light tur ns on while the air conditioner is opera ting.
Control Switches

268
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
4-1. Climate Control System
■Air intake selector
Outside or recirculated air positions can be selected. Press th e
switch to select outside/ r ecirculated air positions.
● Recirculated air po sition (indicator light illuminated)
Outside air is shut off. Use this position when going through t un-
nels, driving in congested traffic (high engine exhaust areas) or
when quick cooling is desired.
● Outside air position (indi cator light turned off)
Outside air is allowed to enter t he cabin. Use this mode for venti-
lation or windshield defrosting.
■Rear window defogger switch
Press the rear window defogger switch to defrost the rear windo w.
Refer to Rear Window Defogger on P. 207.
■ Mode selector dial
●With the airflow mode set to the position and the temperature control
dial set at a medium temperature, heated air is directed to the feet and air at
a comparably lower temperature will flow through the central, left and right
vents.
● When the fan control dial is ON, and the mode selector dial is in the
or position, the air conditioner is automatically turned on and the out-
side air position is automatically selected to defrost the windshield. In the
or position, the outside air position cannot be changed to th e
recirculated air position.
■ A/C switch
The air conditioner may not function when the outside temperatu re
approaches 0 °C (32 °F).
WARNING
■ Do not use the position in cold or rainy weather:
Using the position in cold or rainy weather is dangerous as it will
cause the windows to fog up. Your vision will be hampered, whic h could
lead to a serious accident.

YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
3915-3. Owner Maintenance
5
Maintenance and Care
WARNING
■Do not perform maintenance work if you lack sufficient knowledge and
experience or the proper tools an d equipment to do the work. Have
maintenance work done by a qualified technician
Performing maintenance work on a vehicle is dangerous if not do ne prop-
erly. You can be seriously injured while performing some mainte nance pro-
cedures.
■ If you must run the engine while working under the hood, make c ertain
that you remove all jewelry (especially rings, bracelets, watch es, and
necklaces) and all neckties, scarves, and similar loose clothin g before
getting near the engine or cooling fan which may turn on unexpe ctedly
Working under the hood with the engine running is dangerous. It becomes
even more dangerous when you wear jewelry, loose clothing or ha ve long
hair or a long beard.
Either can become entangled in moving parts and result in injur y.
■ Switch the ignition to off and make sure the fan is not runnin g
before attempting to work near the cooling fan
Working near the cooling fan when it is running is dangerous. T he fan could
continue running indefinitely even if the engine has stopped an d the engine
compartment temperature is high. You could be hit by the fan an d seriously
injured.
■ Do not leave items in the engine compartment
After you have finished checking or doing servicing in the engi ne compart-
ment, do not forget and leave items such as tools or rags in th e engine com-
partment.
Tools or other items left in the engine compartment could cause engine
damage or a fire leading to an unexpected accident.

394
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
5-3. Owner Maintenance
Engine Compartment Over view
Engine oil dipstick
Engine oil-filler cap
Brake/Clutch fluid reservoir
BatteryFuse block
Cooling system cap
Engine coolant reservoir
Windshield washer fluid reser-
voir1
2
3
4
5
6
7
8