air conditioning TOYOTA COROLLA HATCHBACK 2021 (in English) Owner's Manual

4547-3. Do-it-yourself maintenance
COROLLA H/B_U
Use only Toyota wheel nuts
and wheel nut wrenches
designed for use with your
aluminum wheels.
 When rotating, repairing or
changing your tires, check
that the wheel nuts are still
tight after driving 1000 miles
(1600 km).
 Be careful not to damage the
aluminum wheels when using
tire chains.
 Use only Toyota genuine bal-
ance weights or equivalent
and a plastic or rubber ham-
mer when balancing your
wheels. 1
Turn the engine switch off.
2 Open the glove box. Slide off
the damper.
3 Push in the glove box on the
vehicle’s outer side to discon-
nect the claws. Then pull out
the glove box and disconnect
the lower claws.
4 Unlock the filter cover ( ),
pull the filter cover out of the
NOTICE
■Replacing tire pressure warn-
ing valves and transmitters
●Because tire repair or replace-
ment may affect the tire pres-
sure warning valves and
transmitters, make sure to have
tires serviced by your Toyota
dealer or other qualified service
shop. In addition, make sure to
purchase your tire pressure
warning valves and transmit-
ters at your Toyota dealer.
●Ensure that only genuine Toyota
wheels are used on your vehi-
cle.
Tire pressure warning valves
and transmitters may not work
properly with non-genuine
wheels.
Aluminum wheel precau-
tions
Air conditioning filter
The air conditioning filter
must be changed regularly
to maintain air conditioning
efficiency.
Removing the air condi-
tioning filter

4557-3. Do-it-yourself maintenance
COROLLA H/B_U
7
Maintenance and care
claws ( ), and remove the
filter cover.
5 Remove the filter case.
6 Remove the air conditioning
filter from the filter case and
replace it with a new one.
The “ UP” marks shown on the
filter and the filter case should be
pointing up.
■Checking interval
Inspect and replace the air condi-
tioning filter accord ing to the mainte-
nance schedule. In dusty areas or
areas with heavy traffic flow, more frequent cleaning or early replace-
ment may be required. (For sched-
uled maintenance information,
please refer to the “Scheduled
Maintenance Guide” or “Owner’s
Manual Supplement”.)
■If air flow from the vents
decreases dramatically
The filter may be clogged. Check
the filter and replace if necessary.
NOTICE
■When using the air condition-
ing system
Make sure that a filter is always
installed.
Using the air conditioning system
without a filter may cause damage
to the system.
■To prevent damage to the fil-
ter cover
When moving the filter cover in
the direction of arrow to release
the fitting, pay attention not to
apply excessive force to the
claws. Otherwise, the claws may
be damaged.

4708-2. Steps to take in an emergency
COROLLA H/B_Ucle body.
6
Enter the vehicle being towed
and start the engine.
If the engine does not start, turn the
engine switch to ON.
7Shift the shift lever to N and
release the parking brake.
Turn automatic mode off.
( P.155)
Vehicles with a continuously
variable transmission: When
the shift lever cannot be
shifted:  P.148
■While towing
If the engine is not running, the
power assist for the brakes and
steering will not function, making
steering and braking more difficult.
■Wheel nut wrench
Wheel nut wrench is installed in lug-
gage compartment. ( P.485, 495)
 Fluid leaks under the vehicle.
(Water dripping from the air
conditioning after use is nor-
mal.)
 Flat-looking tires or uneven
tire wear
 Engine coolant temperature
gauge needle continually
points higher than normal.
 Changes in exhaust sound
 Excessive tire squeal when
cornering
 Strange noises related to the
suspension system
 Pinging or other noises
related to the engine
 Engine missing, stumbling or
running roughly
 Appreciable loss of power
 Vehicle pulls heavily to one
If you think something
is wrong
If you notice any of the fol-
lowing symptoms, your
vehicle probably needs
adjustment or repair. Con-
tact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

5118-2. Steps to take in an emergency
COROLLA H/B_U
8
When trouble arises
able.
6 Start the engine and turn the
air conditioning system on to
check that the radiator cool-
ing fan operates and to check
for coolant leaks from the
radiator or hoses.
The fan operates when the air con-
ditioning system is turned on imme-
diately after a cold start. Confirm
that the fan is operating by check-
ing 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 oper-
ate in freezing temperatures.)
7If the fan is not operating:
Stop the engine immediately
and contact your Toyota
dealer.
If the fan is operating:
Have the vehicle inspected at
the nearest Toyota dealer.
WARNING
■When inspecting under the
hood of your vehicle
Observe the following precau-
tions. 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 sub-
sided. The engine compart-
ment may be very hot.
●Keep hands and clothing (espe-
cially a tie, a scarf or a muffler)
away from the fan and belts.
Failure to do so may cause the
hands or clothing to be caught,
resulting in serious injury.
●Do not loosen the coolant reser-
voir caps while the engine and
radiator are hot.
High temperature steam or
coolant could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the
engine has cooled down suffi-
ciently. 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 precau-
tions:
●Avoid contaminating the coolant
with foreign matter (such as
sand or dust etc.).
●Do not use any coolant additive.

5299-1. Specifications
COROLLA H/B_U
9
Vehicle specifications
Recommended inflation pres-
sureCold tire inflation pressure recommended
by a manufacturer
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio and heater, to the extent that
these items are available as fac-
tory-installed equipment (whether installed
or not)
Curb weight
The weight of a motor vehicle with stan-
dard equipment, including the maximum
capacity of fuel, oil and coolant, and if so
equipped, air conditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight
150 lb. (68 kg) times the number of occu-
pants specified in the second column of
Table 1
* that follows
Occupant distribution
Distribution of occupants in a vehicle as
specified in the third column of Table 1
*
below
Production options weight
The combined weight of installed regular
production options weighing over 5 lb. (2.3
kg) in excess of the standard items which
they replace, not previously considered in
curb weight or accessory weight, including
heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
Rim
A metal support for a tire or a tire and tube
assembly upon which the tire beads are
seated
Tire related termMeaning

5419-2. Customization
COROLLA H/B_U
9
Vehicle specifications
■BSM (Blind Spot Monitor)* (  P.228)
*: If equipped
■RCTA (Rear Cross Traffic Alert) function* ( P.233)
*: If equipped
■Automatic air conditioning system ( P.392)
■Illumination ( P.401)
FunctionDefault settingCustomized setting
BSM (Blind Spot Moni-
tor)OnOff—O—
Outside rear view mirror
indicator brightnessBrightDim—O—
Alert timing for pres-
ence of approaching
vehicle (sensitivity)
Intermediate
Early
—O—
Late
Only when vehicle
detected in blind spot
FunctionDefault settingCustomized setting
RCTA (Rear cross traf-
fic alert) functionOnOff—O—
FunctionDefault settingCustomized setting
A/C auto switch opera-
tionOnOffO—O
FunctionDefault settingCustomized setting
Time elapsed before the
interior lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation after the
engine switch is turned
off
OnOff——O

559Alphabetical Index
COROLLA H/B_U
Alphabetical Index
A
A/C Air conditioning filter ............. 454
Automatic air conditioning sys-tem ..................................... 392
ABS (Anti-lock Brake System) ............................................... 246Warning light ........................ 474
ACA (Active Cornering Assist) ............................................... 247
Active Cornering Assist (ACA) ............................................... 247
Adaptive Front-lighting System (AFS)...................................... 162
AFS (Adaptive Front-lighting System) ................................. 162
Air conditioning filter ............. 454
Air conditioning system Air conditioning filter ............. 454
Automatic air conditioning sys-tem ..................................... 392
Airbags Airbag operating conditions.... 31
Airbag precautions for your child............................................. 34
Correct driving posture ........... 23
Curtain shield airbag operating conditions ............................. 32
Curtain shield airbag precautions ............................................. 34
Front passenger occupant clas- sification system ................... 38
General airbag precautions .... 34
Locations of airbags ............... 29
Modification and disposal of air- bags ..................................... 37
Side airbag operating conditions ............................................. 32
Side airbag precautions ......... 34
Side and curtain shield airbags operating conditions ............. 32 Side and curtain shield airbags
precautions ...........................34
SRS airbags ...........................29
SRS warning light .................473
Alarm Alarm ......................................66
Warning buzzer ....................472
AM ............................................308
Anchor brackets .................47, 55
Android Auto ...........................319
Antennas (smart key system)108
Anti-lock Brake System (ABS) ...............................................246Warning light.........................474
Apple CarPlay .........................289
Approach warning .......... 211, 221
Apps button (Menu screen) ...259
Armrest ......... ......................... ..417
Assist grips .............................417
Audio .......................................303 Audio source ........................304
Operating information ...........327
Reordering the audio source 304
Screen adjustment ...............306
Some basics .........................304
Sound settings......................305
Turning the system on and off...........................................304
USB/AUX port ......................305
Voice command system .......307
AUDIO button ..........................257
Audio button (Menu screen) ..259
Audio buttons overview .........257
Audio settings.........................326 Common settings .................326
Radio settings.......................326
Audio source...........................304
Audio system-linked display ...86
Automatic air conditioning sys- tem .........................................392
Automatic headlight leveling system ...................................161

564Alphabetical Index
COROLLA H/B_U
General settings ..................... 296 Displaying the general settings screen ................................ 296
General settings screen ....... 296
Glove box ................................ 404
Glove box light ....................... 404
Grocery bag hooks ................ 406
H
Hands-free system ................. 348
Head restraints ....................... 118
Headlights Adaptive Front-lighting System (AFS) .................................. 162
Automatic High Beam system ........................................... 163
Light switch .......................... 160
Replacing light bulbs ............ 461
Head-up display ....................... 89 Driving information display area............................................. 89
Driving support system display area ...................................... 91
Eco Driving Indicator .............. 92
Navigation system-linked display ............................................. 89
Pop-up display ....................... 91
Settings .................................. 90
Heated steering wheel ........... 399
Heaters Automatic air conditioning sys-tem ..................................... 392
Heated steering wheel ......... 399
Outside rear view mirrors ..... 395
Seat heaters ......................... 399
High mounted stoplight Replacing light bulbs ............ 461
Hill-start assist control .......... 247
HOME button .......................... 266
Home screen ........................... 266
Hood Open .................................... 433 Hooks
Cargo hooks .........................406
Coat hooks ...........................417
Grocery bag hooks ...............406
Retaining hooks (floor mat) ....22
Horn .........................................121
I
I/M test .....................................429
Identification Engine ..................................515
Vehicle ..................................514
Ignition switch (engine switch) ...............................................142Auto power off function .........146
Changing the engine switch modes.................................145
If your vehicle has to be stopped in an emergency .................464
Illuminated entry system .......402
Indicators ..................................72
Info button (Menu screen) .....259
Initial screen............................263 Caution screen .....................263
Restarting the system ...........263
Initialization Items to initialize ...................543
Maintenance .........................426
Power windows ....................125
Tire pressure warning system...........................................448
Inside rear view mirror ...........122
Instrument panel light control76,
81
Intercooler coolant Capacity ...............................517
Interior lights...........................401 Front interior light .................401
Rear interior light ..................401
Internet radio...........................313
iPod/iPhone(Apple Carplay ...316