2022 TOYOTA COROLLA HATCHBACK cooling

3564-5. Using the driving support systems
This mode also changes the steering
feel, making it suitable for when agile
driving response is desired, such as
when driving on roads with many
curves.
When Sport mode is selected, Sport
mode indicator comes on.
Vehicles with a manual transmission:
When Sport mode is selected, the iMT
will be enabled. ( P.187)
3Eco drive mode
Helps the driver accelerate in an
eco-friendly manner and improve fuel
economy through moderate throttle
characteristics and by controlling the
operation of the air conditioning system
(heating/cooling).
When Eco drive mode is selected, Eco
drive mode indicator comes on.
■Operation of the air conditioning
system in Eco drive mode
Eco drive mode controls the heat-
ing/cooling operations and fan speed of
the air conditioning system to enhance fuel efficiency. To improve air condition-
ing performance, perform the following
operations:
●Turn off air conditioning eco mode
(vehicles with an automatic air condi-
tioning system) ( P.430)
●Adjust the fan speed (P.423, 428)
●Turn off Eco drive mode
■Automatic deactivation of Sport
mode
If the engine switch is turned off after driving in Sport mode, the drive mode
will be changed to normal mode.
*: If equipped
Exhaust Gas Filter sys-
tem*
The Exhaust Gas Filter system
is designed to collect particu-
late matter in the exhaust
gases using an exhaust gas fil-
ter installed to the exhaust
pipes.
NOTICE
■To prevent the Exhaust Gas Filter
system from failing
●Do not use fuel other than the spec- ified type
●Do not modify the exhaust pipe

4246-1. Using the air conditioning system and defogger
1Upper body
2 Upper body and feet
3 Feet
4 Feet and the windshield defog-
ger operates
■Switching between outside air
and recirculated air modes
Vehicles without the “A/C” switch
 To change to recirculated air
mode, press the recirculated air
mode switch.
The indicator illuminates on the recircu-
lated air mode switch.
 To change to outside air mode,
press the outside air mode
switch.
The indicator illuminates on the outside
air mode switch.
Vehicles with the “A/C” switch
Press the outside/recirculated air
mode switch.
The mode switches between outside air
mode and recirculated air mode modes
each time the sw itch is operated.
When recirculated air mode is selected,
the indicator illuminates on the out-
side/recirculated air mode switch.
■Set cooling and dehumidifica-
tion function (vehicles with the
“A/C” switch)
Press the “A/C” switch.
When the function is on, the indicator
illuminates on the “A/C” switch.
■Defogging the windshield
Defoggers are used to defog the
windshield and front side windows.
Press the windshield defogger
switch.
Set the outside/recirculated air mode
switch to outside air mode if the recircu-
lated air mode is used.
To defog the windshield and the side
windows quickly, turn the air flow and
temperature up.
To return to the previous mode, press
the windshield defogger switch again
when the windshield is defogged.
When the windshield defogger switch is
on, the indicator illuminates on the
windshield defogger switch.
■Defogging the rear window
and outside rear view mirrors
Defoggers are used to defog the
rear window, and to remove rain-
drops, dew and frost from the out-
side rear view mirrors.
Press the rear window and outside
rear view mirror defoggers switch.
When the rear window and outside rear
view mirror defoggers switch is on, the
indicator illuminates on the rear window
and outside rear view mirror defoggers
switch.

425
6
6-1. Using the air conditioning system and defogger
Interior features
The defoggers will automatically turn off
after a while.
■Fogging up of the windows
●Vehicles with the “A/C” switch: The
windows will easily fog up when the
humidity in the vehicle is high. Turning “A/C” switch is on will dehumidify the
air from the outlets and defog the
windshield effectively.
●Vehicles with the “A/C” switch: If you
turn “A/C” switch is off, the windows may fog up more easily.
●The windows may fog up if the recir-culated air mode is used.
■When driving on dusty roads
Close all windows. If dust thrown up by
the vehicle is still dr awn into the vehicle after closing the windows, it is recom-
mended that the air intake mode be set
to outside air mode and the fan speed to any setting except off.
■Outside/recirculated air mode
●Setting to the recirculated air mode temporarily is recommended in pre-
venting dirty air from entering the
vehicle interior.
●Vehicles with the “A/C” switch: During
cooling operation, setting the recircu-
lated air mode will also cool the vehi- cle interior effectively.
■When the outside temperature falls
to nearly 0°C (32°F) (vehicles with
the “A/C” switch)
The dehumidification function may not
operate even when “A/C” switch is
pressed.
■Ventilation and air conditioning odors
●To let fresh air in, set the air condition-ing 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.
●It is recommended that the air condi-
tioning system be set to outside air mode prior to turning the vehicle off.
●When parking, the system automati-cally switches to outside air mode to
encourage better air circulation
throughout the vehicle, helping to reduce odors that occur when starting
the vehicle.
■Air conditioning filter
 P. 4 8 9
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode.
WA R N I N G
■To prevent the windshield from fogging up
Do not use the windshield defogger
switch during cool air operation in extremely humid weather. The differ-
ence between the temperature of the
outside air and that of the windshield can cause the outer surface of the
windshield to fog up, blocking your
vision.
■When the outside rear view mir-
ror defoggers are operating
Do not touch the outside rear view
mirror surfaces, as they can become
very hot and burn you.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning sys-
tem on longer than necessary when the engine is off.
Air outlet layout and opera-
tions

429
6
6-1. Using the air conditioning system and defogger
Interior features
Pressing the off switch to turns off the
fan.
■Change the airflow mode
Press the airflow mode control
switch.
The airflow mode changes as follows
each time the sw itch is pressed.
1Upper body
2 Upper body and feet
3 Feet
4 Feet and the windshield defog-
ger operates
■Switching between outside air
and recirculated air modes
Type A
 To change to recirculated air
mode, press the recirculated air
mode switch.
The indicator illuminates on the recircu-
lated air mode switch.
 To change to outside air mode,
press the outside air mode
switch.
The indicator illuminates on the outside
air mode switch.
Ty p e B
Press the outside/recirculated air
mode switch.
The mode switches between outside air
mode and recirculated air mode modes
each time the switch is operated.
When recirculated air mode is selected,
the indicator illuminates on the out-
side/recirculated air mode switch.
■Set cooling and dehumidifica-
tion function
Press the “A/C” switch.
When the function is on, the indicator
illuminates on the “A/C” switch.
■Defogging the windshield
Defoggers are used to defog the
windshield and front side windows.
Press the windshield defogger
switch.
Set the outside/recirculated air mode
switch to outside air mode if the recircu-
lated air mode is used. (It may switch
automatically.)
To defog the windshield and the side
windows quickly, turn the air flow and
temperature up.
To return to the previous mode, press
the windshield defogger switch again
when the windshield is defogged.
When the windshield defogger switch is
on, the indicator illuminates on the
windshield defogger switch.
■Defogging the rear window
and outside rear view mirrors
Defoggers are used to defog the
rear window, and to remove rain-
drops, dew and frost from the out-
side rear view mirrors.

469
7
7-3. Do-it-yourself maintenance
Maintenance and care
WA R N I N G
●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 or the battery. Fuel and battery fumes are
flammable.
●Be extremely cautious when work- ing on the battery. It contains poi-
sonous and corrosive sulfuric acid.
●Take care because brake fluid can
harm your hands or eyes and dam-
age 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 fans or radiator grille
Be sure the engine switch is OFF. With the engine switch in ON, the
electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. (P.476)
■Safety glasses
Wear safety glasses to prevent flying
or falling material, fluid spray, etc. from getting in your eyes.
NOTICE
■If you remove the air cleaner fil-
ter
Driving with the air cleaner filter removed may cause excessive
engine wear due to dirt in the air.
■If the fluid level is low or high
It is normal for the brake fluid level to
go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refill-
ing, it may indicate a serious problem.

4727-3. Do-it-yourself maintenance
Washer fluid tank (P.477)
Engine coolant reservoir ( P. 4 7 5 )
Fuse boxes ( P.494)
Engine oil filler cap ( P.473)
Engine oil level dipstick ( P.472)
Intercooler coolant reservoir ( P.475)
Battery ( P.476)
Radiator ( P.476)
Condenser ( P.476)
Electric cooling fans
With the engine at operating tem-
perature and turned off, check the
oil level on the dipstick.
■Checking the engine oil
1 Park the vehicle on level
ground. After warming up the
Engine compartment
Components
Checking and adding the
engine oil

475
7
7-3. Do-it-yourself maintenance
Maintenance and care
■Engine coolant reservoir
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.560)
■Intercooler coolant reservoir
The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir when the engine is
cold.
Reservoir cap
“F” line
“L” line
If the level is on or below the “L” line,
add coolant up to the “F” line. ( P.560)
■Coolant selection
Only use “Toyota Super Long Life Cool-
ant” 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
authorized repairer, or any reliable
repairer, test the cap and check for leaks in the cooling system.
NOTICE
■When replacing the engine oil
●Be careful not to spill engine oil on
the vehicle components.
●Avoid overfilling, or the engine
could be damaged.
●Check the oil level on the dipstick
every time you refill the vehicle.
●Be sure the engine oil filler cap is
properly tightened.
Checking the coolant

4767-3. Do-it-yourself maintenance
Check the radiator, condenser and
intercooler and clear away any for-
eign objects. If either of the above
parts is extremely dirty or you are
not sure of their condition, have
your vehicle inspected by any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
Check the battery as follows.
■Battery exterior
Make sure that the battery termi-
nals are not corroded and that there
are no loose connections, cracks,
or loose clamps.
Terminals
Hold-down clamp
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the fol-
lowing precautions before recharging:
●If recharging with the battery installed
on the vehicle, be sure to disconnect the ground cable.
●Make sure the charger is off when connecting and disconnecting the
charger cables to the battery.
■After recharging/reconnecting the
battery (vehicles with a smart entry & start system)
●Unlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the
battery. If this happens, use the wire- less remote control or the mechanical
key to lock/unlock the doors.
●Start the engine with the engine
switch in ACC. The engine may not
WA R N I N G
■When the engine is hot
Do not remove the engine coolant
reservoir cap and the intercooler cool- ant reservoir 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 mix-
ture 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.
Checking the radiator, con-
denser and intercooler
WA R N I N G
■When the engine is hot
Do not touch the radiator, condenser
or intercooler as they may be hot and
cause serious injuries, such as burns.
Battery