2023 TOYOTA COROLLA HYBRID key battery

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COROLLA HV_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 hybrid system, refueling)
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: 12-volt 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

4TABLE OF CONTENTS
Air conditioning filter ...........346
Cleaning the hybrid battery (trac- tion battery) air intake vents......................................... 347
Wireless remote control/elec- tronic key battery.............. 350
Checking and replacing fuses ......................................... 354
Light bulbs .......................... 356
7-1. Essential information Emergency flashers ........... 362
If your vehicle has to be stopped in an emergency .............. 363
If the vehicle is submerged or water on the road is rising......................................... 364
7-2. Steps to take in an emergency If your vehicle needs to be towed......................................... 366
If you think something is wrong ......................................... 370
If a warning light turns on or a warning buzzer sounds .... 372
If a warning message is dis- played .............................. 382
If you have a flat tire (vehicles without spare tire) ............ 387
If you have a flat tire (vehicles with a spare tire) .............. 398
If the hybrid system will not start ......................................... 406
If you lose your keys .......... 407
If the electronic key does not operate properly ............... 408
If the 12-volt battery is dis- charged ............................ 410
If your vehicle overheats .... 414
If the vehicle becomes stuck ......................................... 4178-1. Specifications
Maintenance data (fuel, oil level, etc.) .................................. 420
Fuel information ................. 429
Tire information .................. 431
8-2. Customization Customizable features ....... 442
8-3. Initialization Items to initialize ................ 452
9-1. For owners Reporting safety defects for U.S. owners ............................. 454
Reporting safety defects for Canadian owners ............. 454
Seat belt instructions for Cana- dian owners (in French) ... 455
SRS airbag instructions for Canadian owners (in French)......................................... 456
What to do if... (Troubleshooting) ......................................... 464
Alphabetical Index.............. 467
7When trouble arises
8Vehicle specifications
9For owners
Index

1223-1. Key information
3-1.Key information
The following keys are provided
with the vehicle.
Vehicles without a smart key
systemKeys
Operating the wireless remote con-
trol function ( P.124)
Key number plate
Vehicles with a smart key sys-
tem
Electronic keys
• Operating the smart key system ( P.136)
• Operating the wireless remote control function ( P.124)
Mechanical keys
Key number plate
■When riding in an aircraft
When bringing a key or an elec-
tronic key onto an aircraft, make
sure you do not press any buttons
on the key or the electronic key
while inside the airc raft cabin. If you
are carrying a key or an electronic
key in your bag, etc., ensure that the
buttons are not likely to be pressed
accidentally. Pressing a button may
cause the key or the electronic key
to emit radio waves that could inter-
fere with the operation of the air-
craft.
■Electronic key battery depletion
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.350)
• 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 bec omes low, an
alarm will sound in the cabin and a
message will be shown on the
multi-information display when the
hybrid system 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.137)
●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
Keys
The keys

1233-1. Key information
3
Before driving
when necessary. (P.350)
• 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 t hat 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
 P. 3 5 0
■The electronic key function is
suspended when (vehicles with
a smart key system)
The electronic key function may be
suspended when the electronic key
is kept unmoved in a same location
for a certain period, such as it is left
on a same place. Th is is to reduce
battery consumption. The function
will be restored automatically when
the electronic key is moved, such as
it is picked up.
■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.
NOTICE
■To prevent key damage
●Do not drop the keys, subject
them to strong shocks or bend
them.
●Do not expose the keys to high
temperatures for long periods of
time.
●Do not get the keys wet or wash
them in an ultrasonic washer
etc.
●Vehicles with a smart key sys-
tem: Do not att ach metallic or
magnetic materials to the keys
or place the keys close to such
materials.
●Do not disassemble the keys.
●Do not attach a s ticker or any-
thing else to the surface of the
key.
●Vehicles with a smart key sys-
tem: Do not place the keys near
objects that produce magnetic
fields, such as TVs, audio sys-
tems and induction cookers.
●Vehicles with a smart key sys-
tem: Do not place the keys near
medical electrical equipment
such as low-frequency therapy
equipment or microwave ther-
apy equipment, and do not
receive medical attention with
the keys on your person.

1253-1. Key information
3
Before driving
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 f lash 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 affect ing the opera-
tion of the smart key system or
wireless remo te control
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, airpo rt 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 wireles s 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 wit
h a metallic con-
tent or metallic objects are
attached to the rear window
Vehicles with a smart key system
 P.137
1 Releasing
To release the key, press the button
2Folding
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,
Using the key (vehicles
without a smart key sys-
tem)
Using the mechanical key
(vehicles with a smart key
system)

1263-1. Key information
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.408)
■If you lose your mechanical
keys
 P.407
■If a wrong key is used
The key cylinder rotates freely, iso-
lated from the internal mechanism.
■Certification for the wireless remote control
 P. 4 8 0

1293-2. Opening, closing and locking the doors
3
Before driving
immediately stop the alarm. ( P. 8 8 )
■Operation signals
Vehicles without a smart key sys-
tem
A buzzer sounds and the emer-
gency flashers flash to indicate that
the doors have been
locked/unlocked using the wireless
remote control. (Locked: Once;
Unlocked: Twice)
Vehicles with a smart key system
A buzzer sounds and the emer-
gency flashers flash to indicate that
the doors have been
locked/unlocked using the entry
function or wireless remote control.
(Locked: Once; Unlocked: Twice)
A buzzer sounds to indicate that the
windows and moon roof
*are operat-
ing.
*: If equipped
■Security feature
Vehicles without a smart key sys-
tem
If a door is not opened within
approximately 60 seconds after the
vehicle is unlocked using the wire-
less remote control, the security fea-
ture automatically locks the vehicle
again.
Vehicles with a smart key system
If a door is not opened within
approximately 60 seconds after the
vehicle is unlocked using the entry
function or wireless remote control,
the security featu re automatically
locks the vehicle again.
■When the door cannot be
locked by the lock sensor on
the surface of the front door
handle (vehicles with a smart
key system)
If the doors cannot be locked by
touching the lock sensor with a fin-
ger, touch the lock sensor with the
palm of your hand.
If you are wearing gloves, remove them.
■Door lock buzzer (vehicles with
a smart key system)
If an attempt to lock the doors using
the entry function or wireless remote
control is made when a door is not
fully closed, a b uzzer will sound
continuously for 5 seconds. Fully
close the door to stop the buzzer,
and lock the doors again.
■Alarm
Locking the doors will set the alarm
system. ( P. 8 8 )
■Conditions affecting the opera-
tion of the smart key system (if
equipped) or wireless remote
control
Vehicles without a smart key sys-
tem
 P.125
Vehicles with a smart key system
 P.137
■If the smart k ey system (if
equipped) or the wireless
remote control does not oper-
ate properly
Vehicles without a smart key sys-
tem
Replace the key battery with a new
one if it is depleted. ( P.350)
Vehicles with a smart key system
Use the mechanical key to lock and
unlock the doors. ( P.408)
Replace the key battery with a new
one if it is depleted. ( P.350)

1303-2. Opening, closing and locking the doors
■If the 12-volt battery is dis-
charged (vehicles with a smart
key system)
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.408)
■Rear seat reminder function
In order to remind you not to forget
luggage, etc. in the rear seat, when
the power switch is turned off after
any of the following conditions are
met, a buzzer will sound and a mes-
sage will be displayed on the
multi-information di splay for approx-
imately 6 seconds.
●The hybrid system is started
within approximately 10 minutes
after opening and closing a rear
door.
●A rear door has been opened and
closed after the hybrid system
was started.
However, if a rear door is opened
and then closed within approxi-
mately 2 seconds , the rear seat
reminder function may not operate.
The rear seat rem inder function
determines that luggage, etc. has
been placed in a rear seat based on
opening and closing of a rear door.
Therefore, depending on the situa-
tion, the rear seat reminder function
may not operate and you may still
forget luggage, etc. in the rear seat,
or it may operate unnecessarily.
■Customization
Some functions can be customized.
(  P.442)
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 o f the vehicle,
resulting in death o r 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 wh ether 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 checking 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.