fuel filter TOYOTA COROLLA HYBRID 2021 Owners Manual (in English)

5TABLE OF CONTENTS
COROLLA HV_U
1
2
3
4
5
6
7
8
9
10
Cleaning the hybrid battery (trac- tion battery) air intake vent and
filter .................................. 455
Electronic key battery ......... 459
Checking and replacing fuses ......................................... 461
Light bulbs .......................... 463
8-1. Essential information Emergency flashers ........... 470
If your vehicle has to be stopped in an emergency .............. 471
If the vehicle is trapped in rising water ................................ 472
8-2. Steps to take in an emergency If your vehicle needs to be towed......................................... 473
If you think something is wrong ......................................... 476
If a warning light turns on or a warning buzzer sounds .... 478
If a warning message is dis- played .............................. 487
If you have a flat tire (vehicles without spare tire) ............ 490
If you have a flat tire (vehicles with a spare tire) .............. 501
If the hybrid system will not start ......................................... 509
If you lose your keys .......... 510
If the fuel filler door cannot be opened ............................. 511
If the electronic key does not operate properly ............... 511
If the 12-volt battery is dis- charged ............................ 513
If your vehicle overheats .... 517
If the vehicle becomes stuck ......................................... 5209-1. Specifications
Maintenance data (fuel, oil level, etc.) .................................. 524
Fuel information ................. 531
Tire information .................. 533
9-2. Customization Customizable features ....... 544
9-3. Initialization Items to initialize ................ 552
10-1. For owners Reporting safety defects for U.S. owners ............................. 554
Seat belt instructions for Cana- dian owners (in French) ... 554
SRS airbag instructions for Canadian owners (in French)......................................... 556
What to do if... (Troubleshooting) ......................................... 564
Alphabetical Index.............. 567
8When trouble arises
9Vehicle specifications
10For owners
Index

871-4. Hybrid system
COROLLA HV_U
1
For safety and security
When a certain level of impact is
detected by the impact sensor,
the emergency shut off system
blocks the high voltage current
and stops the fuel pump to mini-
mize the risk of electrocution
and fuel leakage. If the emer-
gency shut off system activates,
your vehicle will not restart. To
restart the hybrid system, con-
tact your Toyota dealer.
A message is automatically dis-
played when a malfunction
occurs in the hybrid system or
an improper operation is
attempted.
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions.
■If a warning light comes on, a
warning message is displayed,
or the 12-volt battery is discon-
nected
The hybrid system may not start. In
this case, try to start the system
again. If the “READY” indicator does
not come on, contact your Toyota
dealer.
NOTICE
●A filter is installed to the air
intake vent. Wh en the filter
remains noticeably dirty even
after cleaning the air intake
vent, filter cleaning or replace-
ment is recommended. Refer to
P.455 for details on how to clean
the filters.
Emergency shut off sys-
tem
Hybrid warning message

4317-3. Do-it-yourself maintenance
COROLLA HV_U
7
Maintenance and care
Light bulbs
(  P.463)
• Bulb with same
number and wattage
rating as original
• Flathead screw- driver
•Wrench
Radiator
and con-
denser
(  P.437)

Tire infla-
tion pres-
sure
( P.450)• Tire pressure gauge
• Compressed air
source
Washer
fluid
( P.440)
• Water or washer
fluid containing anti-
freeze (for winter
use)
• Funnel (used only for adding water or
washer fluid)
WA R N I N G
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
●Make sure that the “ACCES-
SORY” or “IGNITION ON” on
the multi-inform ation display
and the “READY” indicator are
both off.
●Keep hands, clothing and tools
away from the moving fans.
ItemsParts and tools●Be careful not to touch the
engine, power control unit, radi-
ator, 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 compart-
ment.
●Do not smoke, c ause sparks or
expose an open flame to fuel or
the 12-volt battery. Fuel and
12-volt battery fumes are flam-
mable.
●Be extremely cautious when
working on the 12-volt battery. It
contains poisonous and corro-
sive sulfuric acid.
■When working near the elec-
tric cooling fans or radiator
grille
Be sure the power switch is OFF.
With the power switch in ON, the
electric cooling fans may auto-
matically start to r un if the air con-
ditioning is on an d/or the coolant
temperature is high. ( P.437)
■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
filter
Driving with the ai r cleaner filter
removed may cause excessive
engine wear due to dirt in the air.

4557-3. Do-it-yourself maintenance
COROLLA HV_U
7
Maintenance and care
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.
Remove the dust from the air
intake vent with a vacuum
cleaner, etc.
Make sure to only use a vacuum to
suck out dust and clogs. Attempting
to blow out dust and clogs using an
airgun, etc. may pus h it into the air
intake vent. ( P.458)
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.
Cleaning the hybrid
batter y (traction bat-
ter y) air intake vent
and filter
To prevent the fuel economy
from being affected, visually
inspect the hybrid battery
(traction battery) air intake
vent periodically for dust
and clogs. If it is dusty or
clogged or if “Maintenance
Required for Traction Bat-
tery Cooling Parts See
Owner’s Manual” is dis-
played on the multi-informa-
tion display, clean the air
intake vent using the follow-
ing procedures:
Cleaning the air intake
vent

4577-3. Do-it-yourself maintenance
COROLLA HV_U
7
Maintenance and care
Engage the filter to the 2
claws as shown in the illus-
tration.
Engage the claw to install the
filter.
Make sure that t he filter is not
crooked or deformed when install-
ing it.
7 Install the air intake vent
cover.
Insert the tab of the cover as
shown in the illustration.
Push the cover to engage the
3 claws.
8 Using a Phillips screwdriver,
install the clip.
■Scheduled maintenance of the
air intake vent is necessary
when
In some situations such as when the
vehicle is used frequently or in
heavy traffic or dusty areas, the air intake vent may need to be cleaned
more regularly. For d
etails, refer to
“Scheduled Maintenance Guide” or
“Owner’s Manual Supplement”.
■Cleaning the air intake vent
●Dust in the air intake vent may
interfere with the cooling of the
hybrid battery (trac tion battery). If
charging/discharging of the hybrid
battery (traction battery) becomes
limited, the distance that the vehi-
cle can be driven using the electric
motor (traction motor) may be
reduced and the fuel economy
may be reduced.
Inspect and clean the air intake
vent periodically.
●Improper handling of the air intake
vent cover and filt er may result in
damage to them. If you have any
concerns about cleaning the filter,
contact your Toyota dealer.
■If “Maintenance Required for
Traction Battery Cooling Parts
See Owner’s Manual” is dis-
played on the multi-information
display
●If this warning message is dis-
played on the multi-information
display, remove the air intake vent
cover and clean the filter.
(  P.456)
●After cleaning the air intake vent,
start the hybrid system and check
that the warning message is no
longer displayed.
After the hybrid system is started,
it may be necessary to drive the
vehicle up to approximately 20
minutes before the warning mes-
sage disappears. If the warning
message does not disappear after
driving for appropriately 20 min-
utes, have the vehicle inspected
by your Toyota dealer.

5269-1. Specifications
COROLLA HV_U
■Oil capacity (Drain and refill
[Reference
*])
*: The engine oil capacity is a refer-ence quantity to be used when
changing the engine oil. Warm up
the engine and turn off the hybrid
system, wait more than 5 min-
utes, and check the oil level on
the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is
used in your Toyota vehicle. Use
Toyota approved “Toyota Genu-
ine Motor Oil” or equivalent to satisfy the following grade and
viscosity.
Oil grade: API SN/RC multi-
grade engine oil
Recommended viscosity: SAE
0W-16
Outside temperature
SAE 0W-16 is the best choice
for good fuel economy and good
starting in cold weather.
If SAE 0W-16 is not available,
SAE 0W-20 oil may be used.
Electric motor (traction motor)
Ty p ePermanent magnet synchronous
motor
Maximum output53 kW
Maximum torque120.2 ft•lbf (163 N•m, 16.6 kgf•m)
Hybrid battery (traction battery)
Ty p eNickel-Metal hydride
batteryLithium-ion battery
Vo l t a g e7.2 V/module3.7 V/cell
Capacity6.5 Ah4.0 Ah
Quantity28 modules56 cells
Nominal voltage201.6 V207.2 V
Lubrication system
With filter4.4 qt. (4.2 L, 3.7 Imp.
qt.)
Without
filter4.1 qt. (3.9 L, 3.4 Imp.
qt.)

567Alphabetical Index
COROLLA HV_U
Alphabetical Index
A
A/C Air conditioning filter ............. 454
Automatic air conditioning sys-tem ..................................... 386
ABS (Anti-lock Brake System) ............................................... 240Warning light ........................ 480
ACA (Active Cornering Assist) ............................................... 240
Active Cornering Assist (ACA) ............................................... 240
Air conditioning filter ............. 454
Air conditioning system Air conditioning filter ............. 454
Automatic air conditioning sys-tem ..................................... 386
Airbags Airbag operating conditions.... 33
Airbag precautions for your child............................................. 36
Correct driving posture ........... 25
Curtain shield airbag operating conditions ............................. 34
Curtain shield airbag precautions ............................................. 36
Front passenger occupant clas- sification system ................... 41
General airbag precautions .... 36
Locations of airbags ............... 31
Modification and disposal of air- bags ..................................... 39
Side airbag operating conditions ............................................. 34
Side airbag precautions ......... 36
Side and curtain shield airbags operating conditions ............. 34
Side and curtain shield airbags precautions........................... 36
SRS airbags ........................... 31
SRS warning light................. 480 Alarm
Alarm ......................................90
Warning buzzer ....................478
AM ............................................303
Anchor brackets ... ..............50, 68
Android Auto ...........................314
Antennas (smart key system)125
Anti-lock Brake System (ABS) ...............................................240Warning light.........................480
Apple CarPlay/Android Auto .284 Troubleshooting ....................287
Approach warning ..................214
Apps button (Menu screen) ...255
Armrest ......... ......................... ..410
Assist grips .............................410
Audio .......................................298 Audio source ........................299
Operating information ...........322
Reordering the audio source 299
Screen adjustment ...............301
Some basics .........................299
Sound settings......................300
Turning the sys tem on and off
...........................................299
USB port ...............................300
Voice command system .......302
AUDIO button ..........................253
Audio button (Menu screen) ..255
Audio buttons overview .........253
Audio settings.........................321 Common settings .................321
Radio settings.......................321
Audio source...........................299
Audio system-linked display .107
Automatic air conditioning sys- tem .........................................386
Automatic High Beam ............175
Automatic light control system ...............................................174
Average fuel economy ...........104
Average vehicle speed ...........107