2020 TOYOTA COROLLA key battery

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COROLLA_U
Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before driving
Opening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
Driving
Operations and advice which are necessary for
driving
(Main topics: Starting engine, refueling)
Entune audioOperating the Entune Audio
(Main topics: Audio/visual, phone, Toyota Entune)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance
procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: Battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, and seat
belt and SRS airbag instructions for Canadian
owners
IndexSearch by symptom
Search alphabetically

5TABLE OF CONTENTS
COROLLA_U
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Engine compartment .......... 436
Tires ................................... 444
Tire inflation pressure......... 453
Wheels ............................... 455
Air conditioning filter ........... 457
Wireless remote control/elec- tronic key battery.............. 458
Checking and replacing fuses ......................................... 461
Light bulbs .......................... 464
8-1. Essential information Emergency flashers ........... 472
If your vehicle has to be stopped in an emergency .............. 472
If the vehicle is trapped in rising water ................................ 474
8-2. Steps to take in an emergency If your vehicle needs to be towed......................................... 475
If you think something is wrong ......................................... 479
Fuel pump shut off system ......................................... 480
If a warning light turns on or a warning buzzer sounds .... 481
If a warning message is dis- played .............................. 490
If you have a flat tire (vehicles without spare tire) ............ 493
If you have a flat tire (vehicles with a spare tire) .............. 503
If the engine will not start ... 511
If you lose your keys .......... 513
If the electronic key does not operate properly ............... 513
If the vehicle battery is dis- charged ............................ 515
If your vehicle overheats .... 519If the vehicle becomes stuck
......................................... 521
9-1. Specifications Maintenance data (fuel, oil level, etc.) .................................. 524
Fuel information ................. 535
Tire information .................. 537
9-2. Customization Customizable features ....... 548
9-3. Initialization Items to initialize ................ 556
10-1. For owners Reporting safety defects for U.S. owners ............................. 558
Seat belt instructions for Cana- dian owners (in French) ... 558
SRS airbag instructions for Canadian owners (in French)......................................... 560
What to do if... (Troubleshooting) ......................................... 568
Alphabetical Index.............. 571
8When trouble arises
9Vehicle specifications
10For owners
Index

973-1. Key information
COROLLA_U
3
Before driving
the key in your bag, etc., ensure that
the buttons are not likely to be
pressed accidentally. Pressing a
button may cause the key to emit
radio waves that could interfere with
the operation of the aircraft.
■Key battery depletion (with a
wireless remote control func-
tion)
Vehicles without a smart key sys-
tem
●The standard battery life is 1 to 2
years.
●The battery will be come depleted
even if the key is not used. The
following symptoms indicate that
the key battery may be depleted.
Replace the battery when neces-
sary. ( P.458)
• The wireless remote control does not operate.
• The detection area becomes
smaller.
Vehicles with a smart key system
●The standard battery life is 1 to 2
years.
●If the battery becomes low, an
alarm will sound in the cabin and a
message will be shown on the
multi-information display when the
engine is stopped.
●To reduce key battery depletion
when the electronic key is to not
be used for long periods of time,
set the electronic key to the bat-
tery-saving mode. ( P.113)
●As the electronic key always
receives radio waves, the battery
will become depleted even if the
electronic key is not used. The fol-
lowing symptoms indicate that the
electronic key battery may be
depleted. Replace the battery
when necessary. ( P.458)
• The smart key system or the wire-
less remote control does not oper-
ate.
• The detection area becomes
smaller.
• The LED indicator on the key sur- face does not turn on.
●To avoid serious deterioration, do
not leave the electronic key within
3 ft. (1 m) of the following electri-
cal appliances that produce a
magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or
cordless phones
• Table lamps
• Induction cookers
●If the electronic key is near the
vehicle for longer than necessary,
even if the smart key system is not
operated, the key battery may
become depleted faster than nor-
mal.
■Replacing the battery (with a
wireless remote control func-
tion)
 P.458
■If “A New Key has been Regis-
tered Contact Your Dealer for
Details” is shown on the
multi-information display (vehi-
cles with a smart key system)
This message will be displayed
each time the driver’s door is
opened when the doors are
unlocked from the outside for
approximately 10 days after a new
electronic key has been registered.
If this message is displayed but you
have not had a new electronic key
registered, ask your Toyota dealer to
check if an unknown electronic key
(other than those in your posses-
sion) has been registered.
■If a wrong key is used (with a
wireless remote control func-
tion)
The key cylinder rotates freely, iso-
lated from the internal mechanism.

993-1. Key information
COROLLA_U
3
Before driving
Locks the doors ( P.103)
Unlocks the doors ( P.103)
Opens the windows
*1 and
moon roof
*1, 2 (  P.103)
Opens the trunk ( P. 1 1 0 )
Sounds the alarm ( P. 9 9 )
*1: This setting must be customized
at your Toyota dealer.
*2: If equipped
■Panic mode (with a wireless
remote control function)
Vehicles without a smart key sys-
tem
When is pressed for longer
than about one second, an alarm
will sound intermittently and the
vehicle lights will flash to deter any
person from trying to break into or
damage your vehicle.
To stop the alarm, press any button
on the wireless remote control.
Vehicles with a smart key system
When is pressed for longer
than about one second, an alarm
will sound intermittently and the
vehicle lights will flash to deter any
person from trying to break into or
damage your vehicle.
To stop the alarm, press any button
on the electronic key.
■Conditions affecting the opera-
tion of the smart key system or
wireless remote control (with a
wireless remote control func-
tion)
Vehicles without a smart key sys-
tem
The wireless remote control function
may not operate normally in the fol-
lowing situations:
●When the wireless key battery is
depleted
●Near a TV tower, electric power
plant, gas station, radio station,
large display, airport or other facil-
ity that generates strong radio
waves or electrical noise
●When carrying a portable radio,
cellular phone or other wireless
communication devices
●When the wireless key is in con-
tact with, or is covered by a metal-
lic object
●When a wireless key (that emits
radio waves) is being used nearby
●If window tint with a metallic con-
tent or metallic objects are
attached to the rear window
Vehicles with a smart key system
 P. 1 1 3

1003-1. Key information
COROLLA_U
1 Releasing
To release the key, press the button
2 Folding
To stow the key, press the button
then fold the key.
To take out the mechanical key,
slide the release button and take
the key out.
The mechanical key can only be
inserted in one direction, as the
key only has grooves on one
side. If the key cannot be
inserted in a lock cylinder, turn it
over and re-attempt to insert it.
After using the mechanical key,
store it in the electronic key.
Carry the mechanical key
together with the electronic key.
If the electronic key battery is
depleted or the entry function
does not operate properly, you will need the mechanical key.
(
P.513)
■If you lose your mechanical
keys
 P.513
Using the key (vehicles
without a smart key sys-
tem and with a wireless
remote control function)
Using the mechanical key
(vehicles with a smart key
system)

1063-2. Opening, closing and locking the doors
COROLLA_U
■If the smart key system or the
wireless remote control does
not operate properly (if
equipped)
Vehicles without a smart key sys-
tem
Replace the key battery with a new
one if it is depleted. ( P.458)
Vehicles with a smart key system
Use the mechanical key to lock and
unlock the doors. ( P.513)
Replace the key battery with a new
one if it is depleted. ( P.458)
■If the battery is discharged
(vehicles with a smart key sys-
tem)
The doors cannot be locked and
unlocked using the smart key sys-
tem or wireless remote control. Lock
or unlock the doors using the
mechanical key. ( P.513)
■Customization
Some functions can be customized.
(  P.548)
■Door lock switches (to
lock/unlock)
1 Locks all the doors
2 Unlocks all the doors
WARNING
■To prevent an accident
Observe the following precautions
while driving the vehicle.
Failure to do so may result in a
door opening and an occupant
being thrown out of the vehicle,
resulting in death or serious injury.
●Ensure that all doors are prop-
erly closed and locked.
●Do not pull the inside door han-
dle while driving.
Be especially careful of the front
doors, as the doors may be
opened even if the inside lock
buttons are in the locked posi-
tion.
●Set the rear door child-protector
locks when children are seated
in the rear seats.
■When opening or closing a
door
Check the surroundings of the
vehicle such as whether the vehi-
cle is on an incline, whether there
is enough space for a door to
open and whether a strong wind
is blowing. When opening or clos-
ing the door, hold the door handle
tightly to prepare for any unpre-
dictable movement.
■When using the wireless
remote control or the key and
operating the power win-
dows or moon roof (if
equipped)
Operate the power windows or
moon roof after ch ecking to make
sure that there is no possibility of
any passenger having any of their
body parts caught in the windows
or moon roof. Also, do not allow
children to operate the wireless
remote control or the key. It is
possible for children and other
passengers to get caught in the
power windows or moon roof.
Unlocking and locking the
doors from the inside

1113-2. Opening, closing and locking the doors
COROLLA_U
3
Before driving
can be opened. In order to pre-
vent theft, take all electronic keys
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 activated, 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 continue 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 (if
equipped)
Replace the key battery with a new
one if it is depleted. ( P.458)
■Open door warning buzzer
 P. 1 0 7
■Customization
Some functions can be customized.
(  P.548)
*: If equipped
■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.103)
 Opens the trunk ( P.109)
 Starts the engine ( P.148)

1123-2. Opening, closing and locking the doors
COROLLA_U
■Effective range (areas within
which the electronic key is
detected)When locking or unlocking the
doors
The system can be operated when
the electronic key is within about 2.3
ft. (0.7 m) of either of the front out-
side door handles. (Only the doors
detecting the key can be operated.)
When starting the engine or
changing engine switch modes
The system can be operated when
the electronic key is inside the vehi-
cle.
When opening the trunk
The system can be operated when
the electronic key is within about 2.3
ft. (0.7 m) of the trunk release but-
ton.
■Alarms and warning messages
A combination of exterior and inte-
rior buzzers as well as warning mes-
sages shown on the
multi-information di splay are used to
prevent theft of the vehicle and acci-
dents resulting from erroneous
operation. Take appropriate mea-
sures based on the displayed mes-
sage. ( →P.490)
When only an alarm sounds, cir-
cumstances and correction proce-
dures are as follows.
●Exterior buzzer sounds once for 5
seconds
●Interior buzzer sounds continu-
ously
■Battery-saving function
The battery-saving function will be
activated in order to prevent the
electronic key battery and the vehi-
cle battery from being discharged
while the vehicle is not operated for
a long time.
●In the following situations, the
smart key system may take some
time to unlock the doors.
• The electronic key has been left within approximately 11 ft. (3.5 m)
of the outside of the vehicle for 2
minutes or longer.
• The smart key system has not
SituationCorrection
procedure
An attempt was
made to lock the
vehicle while a door
was open.Close all of
the doors
and lock the
doors again.
The trunk was closed
while the electronic
key was still inside
the trunk and all the
doors were locked.Retrieve the
electronic
key from the
trunk and
close the
trunk lid.
SituationCorrection procedure
The engine switch
was turned to ACC
while the driver’s
door was open (or
the driver’s door was
opened while the
engine switch was in
ACC).
Turn the
engine
switch off
and close
the driver’s
door.
The engine switch
was turned to off
while the driver’s
door was open.
Close the
driver’s door