remote control TOYOTA COROLLA 2021 (in English) Owner's Guide

4737-3. Do-it-yourself maintenance
7
Maintenance and care
COROLLA_U
■After recharging/reconnecting
the battery (vehicles with a
smart key system)
●Unlocking the doors using the
smart key system may not be pos-
sible immediately after reconnect-
ing the battery. If this happens,
use the wireless remote control or
the mechanical key to lock/unlock
the doors.
●Start the engine with the engine
switch in ACC. The engine may
not start with the engine switch
turned off. However, the engine
will operate normally from the sec-
ond attempt.
●The engine switch mode is
recorded by the vehicle. If the bat-
tery is reconnected, the vehicle
will return the engine switch mode
to the status it was in before the
battery was disconnected. Make
sure to turn off the engine before
disconnecting the battery. Take
extra care when connecting the
battery if the engine switch mode
prior to discharge is unknown.
If the system will not start even after
multiple attempts, contact your Toy-
ota dealer.
WA R N I N G
■Chemicals in the battery
The battery contains poisonous
and corrosive sulfuric acid and
may produce hydrogen gas which
is flammable and explosive. To
reduce the risk of death or serious
injury, take the following precau-
tions while working on or near the
battery:
●Do not cause sparks by touch-
ing the battery terminals with
tools.
●Do not smoke or light a match
near the battery.
●Avoid contact with eyes, skin
and clothes.
●Never inhale or swallow electro-
lyte.
●Wear protective safety glasses
when working near the battery.
●Keep children away from the
battery.
■Where to safely charge the
battery
Always charge the battery in an
open area. Do no t charge the bat-
tery in a garage or closed room
where there is ins ufficient ventila-
tion.
■Emergency measures regard-
ing electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean
water for at least 15 minutes
and get immediate medical
attention. If possible, continue
to apply water with a sponge or
cloth while traveling to the near-
est medical facility.
●If electrolyte gets on your skin
Wash the affected area thor-
oughly. If you feel pain or burn-
ing, get medical attention
immediately.
●If electrolyte gets on your
clothes
It can soak through clothing on
to your skin. Imm ediately take
off the clothing and follow the
procedure above if necessary.
●If you accidentally swallow elec-
trolyte
Drink a large quantity of water
or milk. Get emergency medical
attention immediately.

4897-3. Do-it-yourself maintenance
7
Maintenance and care
COROLLA_U
*: If equipped
■If the key battery is depleted
The following symptoms may occur:
●The smart key system (if
equipped) and wireless remote
control will not fu nction properly.
●The operational range will be
reduced.
 Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2032
■Use a CR2032 lithium battery
●Batteries can be purchased at
your Toyota dealer, local electrical
appliance shops or camera stores.
●Replace only with the same or
equivalent type recommended by
the manufacturer.
●Dispose of used ba tteries accord-
ing to local laws.
Vehicles without a smart key
system
1 Remove the key cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
2Remove the battery cover.
If the battery cover is difficult to
remove, lift the e dge to remove it.
3Remove the depleted battery
using a small flathead screw-
driver.
Insert a new battery with the “+” ter-
Wireless remote con-
trol/electronic key bat-
ter y
*
Replace the battery with a
new one if it is depleted.
As the key may be damaged
if the following procedure is
not performed properly, it is
recommended that key bat-
tery replacement be per-
formed by your Toyota
dealer.
Items to prepare
Replacing the battery

4917-3. Do-it-yourself maintenance
7
Maintenance and care
COROLLA_Uminal facing up.
4
When installing the key cover
and mechanical key, install
by conducting step 2 and
step 1 with the directions
reversed.
5 Operate the or switch
and check that the doors can
be locked/unlocked.
WA R N I N G
■Battery precautions
Observe the following precau-
tions. Failure to do so may result
in death or serious injury.
●Do not swallow the battery.
Doing so may cause chemical
burns.
●A coin battery o r button battery
is used in the key. If a battery is
swallowed, it may cause severe
chemical burns in as little as 2
hours and may result in death or
serious injury.
●Keep away new and removed
batteries from children.
●If the cover cannot be firmly
closed, stop using the key and
stow the key in the place where
children cannot reach, and then
contact your Toyota dealer.
●If you accidentally swallow a
battery or put a battery into a
part of your b ody, get emer-
gency medical attention imme-
diately.
■To prevent battery explosion
or leakage of flammable liq-
uid or gas
●Replace the batt ery with a new
battery of the same type. If a
wrong type of ba ttery is used, it
may explode.
●Do not expose batteries to
extremely low pr essure due to
high altitude or extremely high
temperatures.
●Do not burn, bre ak or cut a bat-
tery.
NOTICE
■When replacing the battery
Use a flathead screwdriver of
appropriate size. Applying exces-
sive force may deform or damage
the cover.
■For normal operation after
replacing the battery
Observe the following precautions
to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery
to rust.
●Do not touch or move any other
component inside the remote
control.
●Do not bend either of the battery
terminals.

5448-2. Steps to take in an emergency
COROLLA_U
■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 function on. (Custom-
izable features: P.581)
●Check if battery-saving mode is
set. If it is set, cancel the function.
( P.127)
Use the mechanical key
( P.114) in order to perform the
If you lose your keys
New genuine keys can be
made by your Toyota dealer
using the other key (vehi-
cles without a smart key
system) or mechanical key
(vehicles with a smart key
system) and the key number
stamped on your key num-
ber plate.
Keep the plate in a safe
place such as your wallet,
not in the vehicle.
NOTICE
■When an electronic key is lost
(vehicles with a smart key
system)
If the electronic key remains lost,
the risk of vehicle theft increases
significantly. Visit your Toyota
dealer immediately with all
remaining electronic keys that
were provided wit h your vehicle.
If the electronic key
does not operate prop-
erly (vehicles with a
smar t key system)
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 engine
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

5498-2. Steps to take in an emergency
8
When trouble arises
COROLLA_Ucleared. When the battery is
depleted, have the vehicle
inspected at you
r Toyota dealer.
●Some systems may require initial-
ization. ( P.589)
■When removing the battery ter-
minals
When the battery terminals are
removed, the information stored in
the ECU is cleared . Before remov-
ing the battery terminals, contact
your Toyota dealer.
■Charging the battery
The electricity stor ed in the battery
will discharge gradu ally even when
the vehicle is not i n use, due to nat-
ural discharge and the draining
effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the battery may discharge,
and the engine ma y be unable to
start. (The battery recharges auto-
matically during driving.)
■When recharging or replacing
the battery (vehicles with a
smart key system)
●In some cases, i t may not be pos-
sible to unlock the doors using the
smart key system when the bat-
tery is discharged. Use the wire-
less remote control or the
mechanical key to lock or unlock
the doors.
●The engine may not start on the
first attempt after the battery has
recharged but will start normally
after the se cond attempt. This is
not a malfunction.
●The engine switch mode is memo-
rized by the vehicle. When the
battery is reconnected, the system
will return to the mode it was in
before the battery was dis-
charged. Before disconnecting the
battery, turn the engine switch off.
If you are unsure what mode the
engine switch was in before the
battery discharged, be especially
careful when reconnecting the
battery.
■When replacing the battery
●Use a battery that conforms to
European regulations.
●Use a battery wit h the same case
size as the previous battery and
an equivalent 20 h our rate capac-
ity (20HR) or greater.
• If the sizes differ, the battery can- not be properly secured.
• If the 20 hour rate capacity is low,
even if the time p eriod where the
vehicle is not used is a short time,
the battery may discharge and the
engine may not be able to start.
●For details, cons ult your Toyota
dealer.
WA R N I N G
■When removing the battery
terminals
Always remove the negative (-)
terminal first. If the positive (+) ter-
minal contacts any metal in the
surrounding area when the posi-
tive (+) terminal is removed, a
spark may occur, leading to a fire
in addition to ele ctrical shocks
and death or serious injury.
■Avoiding battery fires or
explosions
Observe the following precautions
to prevent accidentally igniting the
flammable gas that may be emit-
ted from the battery:
●Make sure each jumper cable is
connected to the correct termi-
nal and that it is not unintention-
ally in contact with any other
than the intended terminal.
●Do not allow the other end of
the jumper cable connected to
the “+” terminal to come into
contact with any other parts or
metal surfaces in the area, such
as brackets or unpainted metal.

5839-2. Customization
9
Vehicle specifications
COROLLA_U
*3: 7-inch display
*4: If equipped
■Door lock (P.117, 122, 544)
*: Vehicles with a continuous ly variable transmission
■Smart key system* and wireless remote control* ( P.117, 125)
FunctionDefault settingCustomized setting
Unlocking using a key
Driver’s door
unlocked in
one step, all doors
unlocked in two step
All doors unlocked in one step——O
Automatic door locking
function
*
Shift position linked door
locking opera- tionOff
O—OSpeed linked door locking operation
Automatic door unlock-
ing function
*
Shift position linked door unlocking operationOff
O—ODriver’s door linked door unlocking operation
Locking/unlocking of the
trunk when all doors are
locked/unlocked
OnOff——O
FunctionDefault settingCustomized setting
Operating signal (Buzz-
ers)5OffO—O1 to 7
Operation signal (Emer-
gency flashers)OnOffO—O
Time elapsed before
automatic door lock
function is activated if
door is not opened after
being unlocked
60 seconds
Off
O—O30 seconds
120 seconds
Open door warning
buzzerOnOff——O

5849-2. Customization
COROLLA_U
*: If equipped
■Smart key system* ( P.117, 125)
*: If equipped
■Wireless remote control* ( P.112, 117, 122)
*: If equipped
FunctionDefault settingCustomized setting
Smart key systemOnOff——O
Smart door unlockingDriver’s doorAll the doorsO—O
Time elapsed before
unlocking all the door
when gripping and hold-
ing the driver’s door
handle
2.0 seconds
Off
——O1.5 seconds
2.5 seconds
Number of consecutive
door lock operations2 timesAs many as
desired——O
FunctionDefault settingCustomized setting
Wireless remote controlOnOff——O
Unlocking operation
Driver’s door unlocked in
one step, all doors
unlocked in two step
All doors unlocked in one stepO—O
Trunk unlocking opera-
tionPress and hold (short)
One short press
——O
Push twice
Press and hold (long)
Off
Theft deterrent panic
modeOnOff——O
Locking operation when
door openedOnOffO—O

5859-2. Customization
9
Vehicle specifications
COROLLA_U
■Power windows and moon roof* ( P.142, 145)
*: If equipped
■Moon roof* ( P.145)
*: If equipped
■Automatic light control system ( P.186)
FunctionDefault settingCustomized setting
Mechanical key linked
operationOffOn——O
Wireless remote control
linked operationOffOn (open only)——O
Wireless remote control
linked operation signal
(buzzer)
OnOff——O
FunctionDefault settingCustomized setting
Linked operation of com-
ponents when key is
used (open only)
Slide onlyTilt only——O
Linked operation of com-
ponents when wireless
remote control is used
Slide onlyTilt only——O
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before
headlights automatically
turn off after doors are
closed
30 seconds
Off
O—O60 seconds
90 seconds
Windshield wiper linked
headlight illuminationOnOff——O

609Alphabetical Index
COROLLA_URiding with children ................ 47
Types of child restraint system
installation met hod ............... 50
Using an anchor bracket ........ 68
Child safety Airbag precautions ................. 36
Battery precautions ...... 473, 550
Child restraint system............. 50
Heated steering wheel and seat
heater precautions ............. 426
How your child should wear the seat belt................................ 28
Moon roof precau tions ......... 146
Power window lock switch.... 144
Power window precautions .. 143
Rear door child-protectors.... 121
Removed electronic key battery precautions......................... 491
Seat belt extender precautions ............................................. 28
Seat belt precautions ............. 47
Trunk precautions................. 122
Child-protectors ..................... 121
Cleaning Exterior ................................. 452
Interior .................................. 454
Radar sensor........................ 197
Seat belts ............................. 454
Wheels and wheel ornaments........................................... 452
Clock ............... 91, 93, 95, 98, 322
Coat hooks .............................. 443
Command list ......................... 367
Condenser .............................. 471
Console box ............................ 432
Consumption screen.............. 106
Continuously variable transmis- sion ................................ 169, 172If the shift lever cannot be shifted from P......................... 171, 173
M mode ................................ 175
Paddle shift switches.... 174, 175 Cooling system .......................470
Engine overheating ..............550
Cruise control Dynamic radar cruise control 240
Dynamic radar cruise control with full-speed range ..........229
Cup holders.............................431
Current fuel consumption......102
Curtain shield airbags ..............31
Customizable featu res ...........581
D
Daytime running light system186
DCM .................................406, 407
Defogger
Outside rear view mirrors ...418, 422
Rear window.................418, 422
Windshield ....................417, 422
Dimensions .............................556
Dinghy towing .........................162
Display Dynamic radar cruise control 240
Dynamic radar cruise control with full-speed range ..........229
LDA (Lane Departure Alert with steering control)..................226
LTA (Lane Tracing Assist) .....217
Multi-information display.......100
RCTA ....................................258
Warning message.................521
Display change button .......92, 97
Do-it-yourself maintenance ...458
Door lock Doors .................................... 117
Key ....................................... 118
Smart key system .................125
Wireless remote control........ 112
Doors Automatic door locking and unlocking system ................121
Door glasses ........................142

613Alphabetical Index
COROLLA_UPower windows .................... 142
K
Keyless entry
Smart key system................. 125
Wireless remote control ....... 112
Keys Battery-saving function......... 126
Electronic key ....................... 110
Engine switch ............... 163, 164
If the electronic key does not operate properly ................. 544
If you lose your keys ............ 544
Key number plate ................. 110
Keyless entry................ 117, 125
Mechanical key .................... 110
Replacing the battery ........... 489
Warning buzzer .................... 126
Wireless remote control ....... 112
Knee airbags ............................. 31
L
Lane Departure A lert with steer-
ing control (LDA) Operation ............................. 221
Warning messages............... 228
Lane Tracing Assist (LTA) Operation ............................. 211
Warning messages............... 220
Language (multi-information dis- play) ....................................... 104
LATCH anchors ........................ 64
LDA (Lane Departure Alert with steering control)Operation ............................. 221
Warning messages............... 228
LDA (Lane Departure Alert with steering control) switch....... 225
LED accent lights Light switch .......................... 186
Replacing light bulbs ............ 496 Lever
Auxiliary catch lever .............464
Hood lock release lever ........464
Internal trunk rele ase lever ...125
Shift lever .............169, 172, 176
Turn signal lever ...................179
Wiper lever ...........................192
License plate lights Light switch...........................186
Replacing light bulbs ............496
Wattage ................................566
Light bulbs Replacing .............................495
Lights Automatic High Beam system...........................................189
Front interior lights................428
Headlight switch ...................186
Interior lights .........................428
Interior lights list ...................428
Personal lights ......................429
Rear interior lights ................428
Replacing light bulbs ............496
Trunk light .............................124
Turn signal lever ...................179
Vanity lights ..........................442
Wattage ................................566
Linking multi-information display and the system .....................297
Lock steering column ....163, 165
LTA (Lane Tracing Assist) Operation.............................. 211
Warning messages ...............220
M
MaintenanceDo-it-yourself maintenance ..462
General maintenance ...........458
Maintenance data .................556
Maintenance requirements ...457
Malfunction indicator lamp ....512