remote start TOYOTA COROLLA HYBRID 2021 Owners Manual (in English)

1253-2. Opening, closing and locking the doors
COROLLA HV_U
3
Before driving
with you when leaving the vehicle.
●If the electronic key is put in the
trunk with all the doors locked, the
key may not be detected depend-
ing on the location of the key and
the surrounding radio wave condi-
tions. In this case, the key con-
finement prevention function
cannot be activate d, causing the
doors to lock when the trunk is
closed. Make sure to check where
the key is before closing the trunk.
●The key confinement prevention
function cannot be activated if any
one of the doors is unlocked. In
this case, open the trunk using the
trunk opener.
■Internal trunk release lever
The trunk lid can be opened by pull-
ing up the glow-in -the-dark lever
located on the inside of the trunk lid.
The lever will conti nue to glow for
some time after the trunk lid is
closed.
■If the smart key system or the
wireless remote control does
not operate properly
Replace the key battery with a new
one if it is depleted. ( P.459)
■Open door warning buzzer
 P. 1 2 2
■Customization
Some functions can be customized.
(  P.544)
■Antenna location
Antennas outside the cabin
Antennas inside the cabin
Antenna inside the trunk
Antenna outside the trunk
Smart key system
The following operations
can be performed simply by
carrying the electronic key
on your person, for example
in your pocket. The driver
should always carry the
electronic key.
 Locks and unlocks the
doors ( P.119)
 Opens the trunk ( P.124)
 Starts the hybrid system
( P.157)

1273-2. Opening, closing and locking the doors
COROLLA HV_U
3
Before driving
been used for 5 days or longer.
●If the smart key system has not
been used for 14 days or longer,
the doors cann ot be unlocked
from any door except the driver’s
door. In this case, hold the driver’s
door handle, or use the wireless
remote control or mechanical key
to unlock the doors.
■Electronic key battery-saving
function
When battery-savi ng mode is set,
battery depletion is minimized by
stopping the electronic key from
receiving radio waves.
Press twice while pressing and
holding . Confirm that the elec-
tronic key indicator flashes 4 times.
While the battery-saving mode is
set, the smart key system cannot be
used. To cancel the function, press
any of the electronic key buttons.
■Conditions affecting operation
The smart key system uses weak
radio waves. In the following situa-
tions, the communication between
the electronic key and the vehicle
may be affected, preventing the
smart key system, wireless remote
control and immobilizer system from
operating properly.
●When the electronic key battery is
depleted
●Near a TV tower, electric power
plant, gas station , radio station,
large display, airpo rt or other facil-
ity that generates strong radio
waves or electrical noise
●When carrying a portable radio,
cellular phone, cordless phone or other wireless communication
device
●When the electronic key is in con-
tact with, or is c
overed by the fol-
lowing metallic objects
• Cards to which aluminum foil is
attached
• Cigarette boxes that have alumi-
num foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wirel ess keys (that
emit radio waves) are being used
nearby
●When carrying the electronic key
together with the following devices
that emit radio waves
• Another vehicle’s electronic key or a wireless key that emits radio
waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint wit h a metallic con-
tent or metallic objects are
attached to the rear window
●When the electronic key is placed
near a battery charger or elec-
tronic devices
●When the vehicle is parked in a
pay parking spot where radio
waves are emitted
If the doors cannot be
locked/unlocked using the smart key
system, lock/unlock the doors by
performing any of the following:
●Bring the electronic key close to
either front door handle and oper-
ate the entry function.
●Operate the wireless remote con-
trol.
If the doors cannot be
locked/unlocked using the above
methods, use the mechanical key.
(  P. 5 1 1 )
If the hybrid system cannot be
started using the smart key system,

1283-2. Opening, closing and locking the doors
COROLLA HV_Urefer to P.512.
■Note for the entry function
●Even when the electronic key is
within the effective range (detec-
tion areas), the system may not
operate properly in the following
cases:
• The electronic key is too close to the window or outside door han-
dle, near the ground, or in a high
place when the doors are locked
or unlocked.
• The electronic key is near the ground or in a high place, or too
close to the center of the rear
bumper when the trunk is opened.
• The electronic key is on the instru- ment panel, rear package tray or
floor, or in the door pockets or
glove box when the hybrid system
is started or po wer switch modes
are changed.
●Do not leave the electronic key on
top of the instrument panel or near
the door pockets when exiting the
vehicle. Depending on the radio
wave reception conditions, it may
be detected by the antenna out-
side the cabin and the door will
become lockable from the outside,
possibly trapping the electronic
key inside the vehicle.
●As long as the electronic key is
within the effective range, the
doors may be locked or unlocked
by anyone. However, only the
doors detecting the electronic key
can be used to unl ock the vehicle.
●Even if the electronic key is not
inside the vehicle, it may be possi-
ble to start the hybrid system if the
electronic key is near the window.
●The doors may unlock or lock if a
large amount of water splashes on
the door handle, such as in the
rain or in a car wash when the
electronic key is within the effec-
tive range. (The doors will auto-
matically be locked after
approximately 60 seconds if the
doors are not opened and closed.)
●If the wireless remote control is
used to lock the doors when the
electronic key is near the vehicle,
there is a possib ility that the door
may not be unlocked by the entry
function. (Use the wireless remote
control to unlock the doors.)
●If the doors have been locked
from outside of the vehicle and are
then not unlocked using the wire-
less remote control or smart key
system, the hybrid system cannot
be started using the smart key
system. (However, if the doors
have been locked from inside the
vehicle, the hybrid system can be
started using the smart key sys-
tem.)
If it is necessary to start the hybrid
system, it can be started using the
procedure in “If the electronic key
dose not opera te properly”
(  P.512).
●Touching the door lock or unlock
sensor while wearing gloves may
prevent lock or unlock operation.
●When the lock operation is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recognition signals will be
given.
●If the door handle becomes wet
while the electronic key is within
the effective range, the door may
lock and unlock repeatedly. In that
case, follow the following correc-
tion procedures to wash the vehi-
cle:
• Place the electronic key in a loca- tion 6 ft. (2 m) or more away from
the vehicle. (Take care to ensure
that the key is not stolen.)
• Set the electronic key to bat-
tery-saving mode to disable the
smart key system. ( P.127)
●If the electronic key is inside the
vehicle and a door handle
becomes wet during a car wash, a
message may be shown on the
multi-information display and a
buzzer will sound outside the vehi-

1293-2. Opening, closing and locking the doors
COROLLA HV_U
3
Before driving
cle. To turn off the alarm, lock all
the doors.
●The lock sensor may not work
properly if it com es into contact
with ice, snow, mud, etc. Clean
the lock sensor and attempt to
operate it again.
●A sudden handle operation or a
handle operation immediately
after entering the effective range
may prevent the doors from being
unlocked. Touch the door unlock
sensor and check that the doors
are unlocked bef ore pulling the
door handle again.
●If there is another electronic key in
the detection area, it may take
slightly longer to unlock the doors
after the door handle is gripped.
■When the vehicle is not driven
for extended periods
●To prevent theft of the vehicle, do
not leave the electronic key within
6 ft. (2 m) of the vehicle.
●The smart key system can be
deactivated in advance. ( P.544)
●Setting the electronic key to bat-
tery-saving mode helps to reduce
key battery depletion. ( P.127)
■To operate the system properly
●Make sure to carry the electronic
key when operati ng the system.
Do not get the electronic key too
close to the vehicle when operat-
ing the system from the outside of
the vehicle.
Depending on the position and hold-
ing condition of the electronic key,
the key may not be detected cor-
rectly and the system may not oper-
ate properly. (The alarm may go off
accidentally, or the door lock pre-
vention function may not operate.)
●Do not leave the electronic key
inside the trunk.
The key confinement prevention
function may not operate, depend-
ing on the location of the key (the
inside edge of the trunk), condi- tions (inside a metal bag, close to
metallic objects)
and the radio
waves in the surrounding area.
(  P.124)
■If the smart key system does
not operate properly
●Locking and unlocking the doors:
 P. 5 1 1
●Starting the hybrid system:
P. 5 1 2
■Customization
Some functions can be customized.
(  P.544)
■If the smart key system has
been deactivated in a custom-
ized setting
●Locking and unlocking the doors:
Use the wireless remote control or
mechanical key. ( P. 11 9 , 5 11 )
●Starting the hybr id system and
changing power switch modes:
 P. 5 1 2
●Stopping the hybrid system:
P. 1 5 9

1433-5. Opening and closing the windows
COROLLA HV_U
3
Before driving
5 Release the power window
switch for a m oment, resume
pushing the switch in the
one-touch opening direction, and
hold it there for a pproximately 4
seconds or more.
6 Pull and hold the power window
switch in the one-touch closing
direction again. After the door
window is completely closed,
continue holding the switch for a
further 1 second or more.
If you release the switch while the
window is moving, start again from
the beginning.
If the window reverses and cannot
be fully closed or opened, have the
vehicle inspected by your Toyota
dealer.
■Door lock linked window opera-
tion
●The power windows can be
opened and closed using the
mechanical key.
* (  P.512)
●The power windows can be
opened using the wireless remote
control.
* ( P. 1 1 9 )
*: These settings must be custom-
ized at your Toyota dealer.
■Customization
Some functions can be customized.
(  P.544)
WA R N I N G
Observe the following precau-
tions. Failure to do so may result
in death or serious injury.
■Closing the windows
●The driver is responsible for all
the power window operations,
including the operation for the
passengers. In order to prevent
accidental operation, especially
by a child, do not let a child
operate the power windows. It is
possible for children and other
passengers to have body parts
caught in the power window.
Also, when ridin g with a child, it
is recommended to use the win-
dow lock switch. (
P.144)
●Check to make sure that all pas-
sengers do not have any part of
their body in a pos ition where it
could be caught when a window
is being operated.
●When using the wireless remote
control or mechanical key and
operating the power windows,
operate the power window after
checking to make sure that
there is no poss ibility of any
passenger having any of their
body parts caug ht in the win-
dow. Also do not let a child
operate window by the wireless
remote control or mechanical
key. It is possib le for children
and other passengers to get
caught in the power window.
●When exiting the vehicle, turn
the power switch off, carry the
key and exit the vehicle along
with the child. There may be
accidental operation, due to
mischief, etc., that may possibly
lead to an accident.

4397-3. Do-it-yourself maintenance
COROLLA HV_U
7
Maintenance and care
Check the 12-volt battery as fol-
lows.
■12-volt battery exterior
Make sure that the 12-volt bat-
tery terminals are not corroded
and that there are no loose con-
nections, cracks, or loose
clamps.
Terminals
Hold-down clamp
■Before recharging
When recharging, the 12-volt bat-
tery produces hydrogen gas which
is flammable and explosive. There-
fore, observe the following precau-
tions before recharging:
●If recharging with the 12-volt bat-
tery 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 12-volt bat-
tery.
■After recharging/reconnecting
the 12-volt battery
●Unlocking the doors using the
smart key system may not be pos-
sible immediately after reconnect-
ing the 12-volt battery. If this
happens, use the wireless remote
control or the mechanical key to
lock/unlock the doors.
●Start the hybrid system with the
power switch in ACC. The hybrid
system may not start with the
power switch turned off. However,
the hybrid system will operate nor-
mally from the second attempt.
●The power switch mode is
recorded by the vehicle. If the
12-volt battery is reconnected, the
vehicle will return the power
switch mode to the status it was in
before the 1 2-volt battery was dis-
connected. Make sure to turn off
the power before disconnecting
the 12-volt battery. Take extra
care when connecting the 12-volt
battery if the power switch mode
prior to discharge is unknown.
If the system will not start even after
multiple attempts, contact your Toy-
ota dealer.
NOTICE
■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 out or when the fluid
level in the accumulator is high.
If the reservoir needs frequent
refilling, there ma y be a serious
problem.
12-volt battery
WA R N I N G
■Chemicals in the 12-volt bat-
tery
The 12-volt battery contains poi-
sonous and corrosive sulfuric acid
and may produce hydrogen gas
which is flammable and explosive.
To reduce the risk of death or seri-
ous injury, take the following pre-
cautions while working on or near
the 12-volt battery:
●Do not cause sparks by touch-
ing the 12-volt battery terminals
with tools.

5118-2. Steps to take in an emergency
COROLLA HV_U
8
When trouble arises
Pull the lever.
Using the lever to open the fuel
filler door may not allow for an
adequate reduction in fuel tank
pressure before refueling. To
prevent fuel from spilling out,
turn the cap slowly when remov-
ing it. During refueling, fuel may
spill out from the filler opening
due to air being discharged from
inside the fuel tank. Therefore,
fill the fuel tank carefully and
slowly.
■When the electronic key does
not work properly
●Make sure that the smart key sys-
tem has not been deactivated in
the customization setting. If it is
off, turn the functi on on. (Custom-
izable features: P.544)
●Check if battery-saving mode is
set. If it is set, cancel the function.
( P.127)
Use the mechanical key
( P.118) in order to perform the
If the fuel filler door
cannot be opened
If the fuel filler door opener
switch cannot be operated,
contact your Toyota dealer
to service the vehicle. In
case where refueling is
urgently necessary, the fol-
lowing procedure can be
used to open the fuel filler
door.
Opening the fuel filler
door
If the electronic key
does not operate prop-
erly
If communication between
the electronic key and vehi-
cle is interrupted ( P.127)
or the electronic key cannot
be used because the battery
is depleted, the smart key
system and wireless remote
control cannot be used. In
such cases, the doors can
be opened and the hybrid
system can be started by
following the procedure
below.
NOTICE
■In case of a smart key system
malfunction or other
key-related problems
Take your vehicle with all the elec-
tronic keys provided with your
vehicle to your Toyota dealer.
Locking and unlocking
the doors

5158-2. Steps to take in an emergency
COROLLA HV_U
8
When trouble arises
recharge the 12-volt battery
of your vehicle.
5 Open and close any of the
doors of your vehicle with the
power switch OFF.
6 Maintain the engine speed of
the second vehicle and start
the hybrid system of your
vehicle by turning the power
switch to ON.
7 Make sure the “READY” indi-
cator comes on. If the indica-
tor does not come on, contact
your Toyota dealer.
8 Once the hybrid system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
Once the hybrid system starts,
have the vehicle inspected at
your Toyota dealer as soon as
possible.
■Starting the hybrid system
when the 12-volt battery is dis-
charged
The hybrid system cannot be started
by push-starting.
■To prevent 12-volt battery dis-
charge
●Turn off the headlights and the
audio system while the hybrid sys-
tem is off.
●Turn off any unnecessary electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■When the 12-volt battery is
removed or discharged
●Information stored in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at your Toyota dealer.
●Some systems may require initial-
ization. ( P.552)
■When removing the 12-volt bat-
tery terminals
When the 12-volt battery terminals
are removed, the information stored
in the ECU is cleared. Before
removing the 12-vo lt battery termi-
nals, contact you r Toyota dealer.
■Charging the 12-volt battery
The electricity stored in the 12-volt
battery will discha rge gradually even
when the vehicle i s not in use, due
to natural dischar ge and the drain-
ing effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the 12-volt battery may dis-
charge, and the hybrid system may
be unable to start. (The 12-volt bat-
tery recharges automatically while
the hybrid system is operating.)
■When recharging or replacing
the 12-volt battery
●In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the
12-volt battery is discharged. Use
the wireless remote control or the
mechanical key to lock or unlock
the doors.
●The hybrid syste m may not start
on the first attempt after the
12-volt battery has recharged but
will start normally after the second
attempt. This is not a malfunction.
●The power switch mode is memo-
rized by the vehicle. When the
12-volt battery is reconnected, the
system will return to the mode it
was in before the 12-volt battery
was discharged. Before discon-
necting the 12-volt battery, turn
the power switch off.
If you are unsure what mode the

569Alphabetical Index
COROLLA HV_U
Heated steering wheel and seat
heater precautions ............. 393
How your child should wear the seat belt................................ 28
Power window lock switch.... 144
Power window precautions .. 143
Rear door child-protectors.... 122
Removed electronic key battery precautions......................... 460
Seat belt extender precautions ............................................. 28
Seat belt precautions ............. 47
Trunk precautions................. 123
Child-protectors ..................... 122
Cleaning Exterior ................................. 420
Interior .................................. 422
Radar sensor........................ 184
Seat belts ............................. 422
Wheels and wheel ornaments........................................... 420
Clock ......................... 98, 101, 292
Coat hooks .............................. 410
Command list ......................... 337
Condenser .............................. 437
Console box ............................ 399
Cooling system ...................... 436 Engine overheating .............. 517
Hybrid system overheating... 518
Cruise control Dynamic radar cruise control with full-speed range .......... 207
Cup holders ............................ 398
Current fuel consumption ..... 104
Curtain shield airbags ............. 31
Customizable features ........... 544
D
Daytime running light system173
DCM ................................. 376, 377
Defogger Outside rear view mirrors ..... 387 Rear window.........................387
Windshield ............................387
Dimensions .............................524
Dinghy towing .........................156
Display Dynamic radar cruise control with full-speed range ..........207
Energy monitor .....................109
LTA (Lane Tracing Assist) .....202
Multi-information display.......103
RCTA ....................................226
Warning message.................487
Display change button ...........100
Do-it-yourself maintenance ...426
Door lock Doors .................................... 119
Smart key system .................125
Wireless remote control........ 117
Doors Automatic door locking and unlocking system ................122
Door glasses ........................142
Door lock .............................. 119
Open door warning buzzer .120, 122
Outside rear view mirrors .....140
Rear door child-protectors ....122
Side doors ............................ 119
Drive distance .........................107
Drive information ....................107
Drive-start control ..................147
Driving Break-in tips .........................147
Correct driving posture ...........25
Driving mode select switch ...239
Hybrid vehicle dri ving tips .....245
Procedures ...........................146
Winter drive tips....................247
Driving informatio n display ...104
Driving range ..........................104
Driving support system informa- tion display............................107

579Alphabetical Index
COROLLA HV_U
Specification ......................... 526
Warning message .................. 87
Traction Control (TRAC) ........ 240
Traction motor (electric motor)80
Trailer towing .......................... 155
Transmission Driving mode select switch... 239
Hybrid transmission.............. 164
If the shift lever cannot be shifted from P................................. 165
Trip meters .............................. 100
Trunk ....................................... 123 Internal trunk release lever... 125
Smart key system................. 124
Trunk light............................. 124
Trunk opener ........................ 124
Wireless remote control ....... 124
Trunk features ........................ 400
Trunk light ............................... 124 Wattage ................................ 530
Turn signal lights Replacing light bulbs ............ 464
Turn signal lever ................... 166
Wattage ................................ 530
U
USB charging port.................. 401
USB memory ........................... 309
USB port .................................. 300
V
Vanity lights ............................ 409Wattage ................................ 530
Vanity mirrors ......................... 409
Vehicle button (Setup screen) ....................................... 258, 296
Vehicle data recording ............... 7
Vehicle identifi cation number524
Vehicle information display ... 107 Vehicle settings ......................296
Displaying the vehicle settings screen.................................296
Valet mode setting ................296
Vehicle settings screen.........296
Vehicle Stability Control (VSC) ...............................................240
Voice button (Setup screen) 258, 295
Voice command system .........334 Using the voice command sys-tem .....................................334
Voice command system opera- tion......................................335
Voice settings .........................295 Displaying the voice settings screen.................................295
Voice settings screen ...........295
VSC (Vehicle Stability Control) ...............................................240
W
Warning buzzers ABS ......................................480
Airbags .................................480
Approach warning ................214
Brake hold ............................484
Brake Override System ........480
Brake system ........................478
Charging system ..................479
Drive-Start Control ................480
Electric power steering .........481
Engine ..................................479
High coolant temperature .....478
Hybrid system .......................479
Hybrid system overheat ........479
Low engine oil pressure .......479
LTA (Lane Tracing Assist) ...197, 482
Open door ....................120, 122
RCTA (Rear Cross Traffic Alert) ...........................................483