2023 TOYOTA COROLLA HYBRID key battery

1353-2. Opening, closing and locking the doors
3
Before driving
■Trunk light
●The trunk light turns on when the
trunk is opened.
●If the trunk light is left on when the
power switch is turned off, the light
will go off automatically after 20
minutes.
■Function to prevent the trunk
being locked with the electronic
key inside (vehicles with a
smart key system)
●When all doors are locked, closing
the trunk lid with the electronic key
left inside the tr unk will sound an
alarm.
In this case, the trunk lid can be
opened pressing the trunk release
button on the trunk lid.
●If the spare electronic key is put in
the trunk with all the doors locked,
the key confinement prevention
function is activated so the trunk
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 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 k ey system (if
equipped) or the wireless
remote control does not oper-
ate properly
Replace the key battery with a new
one if it is depleted. ( P.350)
■Open door warning buzzer
 P.131
■Customization
Some functions can be customized.
(  P.442)

1373-2. Opening, closing and locking the doors
3
Before driving
●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
12-volt battery from being dis-
charged 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 been used for 5 days or longer.
●If the smart key
system has not
been used for 14 days or longer,
the doors cannot 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-saving 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.
●Electronic keys that will not be
used for long periods of time can
be set to the battery-saving mode
in advance.
■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
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 power switch
was turned to ACC
while the driver’s
door was open (or
the driver’s door was
opened while the
power switch was in
ACC).
Turn the
power
switch off
and close
the driver’s
door.
The power switch
was turned to off
while the driver’s
door was open.
Close the
driver’s door

1383-2. Opening, closing and locking the doors
●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 covered by the fol-
lowing metallic objects
• Cards to which al uminum 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 wireless 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 with 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.408)
If the hybrid system cannot be
started using the smart key system,
refer to P.409.
■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 power 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 unlock the vehicle.
●Even if the electro nic 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

1393-2. Opening, closing and locking the doors
3
Before driving
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 unlocke d by the entry
function. (Use the wireless remote
control to unloc k the doors.)
●If the doors have been locked
from outside of the vehicle and are
then not unlocked using the wire-
less remote contr ol or smart key
system, the hybri d 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 operate properly”
(  P.409).
●Touching the door lock or unlock
sensor while wearing gloves may
prevent lock or unlock operation.
●When the lock op eration is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recogniti on signals will be
given.
●If the door handle becomes wet
while the electronic key is within
the effective ran ge, the door may
lock and unlock repeatedly. In that
case, follow the fo llowing 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.137)
●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-
cle. To turn off the alarm, lock all
the doors.
●The lock sensor may not work
properly if it comes into contact
with ice, snow, m ud, 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 befo re 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.442)
●Setting the electronic key to bat-
tery-saving mode helps to reduce
key battery depletion. ( P.137)
■To operate the system properly
●Make sure to carry the electronic
key when operating 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-

1724-2. Driving procedures
1Check that the parking brake
is set. ( P.183)
2 Check that the shift lever is in
P.
3 Firmly depress the brake
pedal.
and a message will be dis-
played on the multi-information dis-
play. If it is not displayed, the hybrid
system cannot be started.
4 Press the power switch
shortly and firmly.
When operating the power switch,
one short, firm press is enough. It is
not necessary to press and hold the
switch.
If the “READY” indicator turns on,
the hybrid system will operate nor-
mally.
Continue depressing the brake
pedal until the “READY” indicator is
illuminated.
The hybrid system can be started
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the power switch in
ACC or ON for long periods of
time without the hybrid system on.
Power (ignition)
switch (vehicles with
a smar t key system)
Performing the following
operations when carrying
the electronic key on your
person starts the hybrid
system or changes power
switch modes.
Starting the hybrid sys-
tem

1734-2. Driving procedures
4
Driving
from any power switch mode.
5Check that the “READY” indi-
cator is illuminated.
The vehicle cannot be driven if the
“READY” indicator is off.
■Power switch illumination
According to the situation, the
power switch illumination operates
as follows:
●When a door is opened, or the
power switch mode is changed
from ACC or ON to off, the power
switch illumination comes on.
●When depressing the brake pedal
with carrying the electronic key on
your person, the power switch illu-
mination blinks.
●When the power switch mode is in
ACC or ON, the po wer switch illu-
mination is constantly illuminated.
■If the hybrid system does not
start
●The immobilizer system may not
have been deactivated. ( P. 8 7 )
Contact your Toyota dealer.
●If a message related to start-up is
shown on the multi-information
display, read the message and fol-
low the instructions.
■When the ambient temperature
is low, such as during winter
driving conditions
●When starting th e hybrid system,
the flashing time of the “READY”
indicator may be long. Leave the
vehicle as it is until the “READY”
indicator is steady on, as steady
means the vehicle is able to move.
●When the hybrid battery (traction
battery) is extremely cold (below
approximately -22°F [-30°C])
under the influenc e of the outside
temperature, it ma y not be possi-
ble to start the hybrid system. In
this case, try to start the hybrid
system again after the tempera-
ture of the hybrid battery
increases due to the outside tem-
perature increase etc.
■Sounds and vibrations specific
to a hybrid vehicle
 P. 7 9
■If the 12-volt b attery is dis-
charged
The hybrid system cannot be started
using the smart key system. Refer
to P.410 to restar t the hybrid sys-
tem.
■Electronic key battery depletion
 P.122
■Conditions affecting operation
 P.137
■Notes for the entry function
 P.138
■If the “READY” indicator does
not come on
In the event that the “READY” indi-
cator does not come on even after
performing the proper procedures
for starting the vehicle, contact your
Toyota dealer immediately.
■If the hybrid sys tem is malfunc-
tioning
 P. 8 6

1744-2. Driving procedures
■Electronic key battery
 P. 3 5 0
■Operation of the power switch
●If the switch is not pressed shortly
and firmly, the power switch mode
may not change or the hybrid sys-
tem may not start.
●If attempting to re start the hybrid
system immediately after turning
the power switch off, the hybrid
system may not start in some
cases. After turn ing the power
switch off, please wait a few sec-
onds before restarting the hybrid
system.
■Customization
If the smart key system has been
deactivated in a customized setting,
refer to P.408.
1 Stop the vehicle completely.
2 Set the parking brake
( P.183), and shift the shift
lever to P.
Check the parking brake indicator
is illuminated.
3 Press the power switch
shortly and firmly.
The hybrid system will stop, and the
meter display will be extinguished.
4Release the brake pedal and
check that “ACCESSORY” or
“IGNITION ON” is not shown
on the multi-information dis-
play.
■Automatic hybrid system shut
off feature
●The vehicle is equipped with a
feature that automatically shuts off
the hybrid system when the shift
lever is in P with the hybrid system
operating for an extended period.
●The hybrid system will automati-
cally shut off after approximately 1
hour if it has been left running
while the shift lever is in P.
●The timer for the automatic hybrid
system shut off feature will reset if
the brake pedal is depressed or if
the shift lever is in a position other
WARNING
■When starting the hybrid sys-
tem
Always start the hybrid system
while sitting in the driver’s seat.
Do not depress the accelerator
pedal while starting the hybrid
system under any circumstances.
Doing so may cause an accident
resulting in death or serious injury.
NOTICE
■When starting the hybrid sys-
tem
If the hybrid system becomes diffi-
cult to start, have your vehicle
checked by your Toyota dealer
immediately.
■Symptoms indicating a mal-
function with the power
switch
If the power switch seems to be
operating somewhat differently
than usual, such as the switch
sticking slightly, there may be a
malfunction. Contact your Toyota
dealer immediately.
Stopping the hybrid sys-
tem

1904-3. Operating the lights and wipers
●To make your vehicle more visible
to other drivers during daytime
driving, the daytime running lights
turn on automatically when all of
the following conditions are met.
(The daytime running lights are
not designed for use at night.)
• The hybrid system is operating.
• The parking brake is released
• The headlight switch is in the
or
* position
*: When the surroundings are bright
The daytime running lights remain
on after they illumi nate, even if the
parking brake is set again.
●For the U.S.A.: Daytime running
lights can be turned off by operat-
ing the switch.
●Compared to turning on the head-
lights, the daytime running light
system offers gr eater durability
and consumes less electricity, so
it can help improve fuel economy.
■Headlight control sensor
The sensor may not function prop-
erly if an object is placed on the sen-
sor, or anything that blocks the
sensor is affixed to the windshield.
Doing so interfere s with the sensor
detecting the level of ambient light
and may cause the automatic head-
light system to malfunction.
■Automatic light off system
●When the headlights are on: The
headlights and tail lights turn off
30 seconds after the driver’s door
is opened and clos ed if the power
switch is turned to ACC or OFF.
(The lights turn off immediately if on the key is pressed after all
the doors are closed.)
●When only the tail lights are on:
The tail lights turn off automati-
cally if the power switch is turned
to ACC or OFF and the driver’s
door is opened.
To turn the lights on again, turn the
power switch to ON, or turn the light
switch off once and then back to
or (except for the Canada).
■Light reminder buzzer
A buzzer sounds when the power
switch is turned t o OFF or ACC and
the driver’s door is opened while the
lights are turned on.
■Windshield wiper linked head-
light illumination
When driving during daytime with
the headlight switch turned to , if
the windshield wipers are used, the
headlights will turn o n automatically
after several se conds to help
enhance the visibility of your vehi-
cle.
■12-volt battery-saving function
In order to prevent the 12-volt bat-
tery of the vehicle from discharging,
if the headlights and/or tail lights are
on when the power switch is turned
off the 12-volt battery saving func-
tion will operate and automatically
turn off all the lig hts after approxi-
mately 20 minutes. When the power
switch is turned to ON, the 12-volt
battery-saving function will be dis-
abled.
When any of the following are per-
formed, the 12-volt battery-saving
function is canceled once and then
reactivated. All the lights will turn off
automatically 20 mi nutes after the
12-volt battery-saving function has
been reactivated:
●When the headlight switch is oper-
ated
●When a door is opened or closed