battery TOYOTA PRIUS PRIME 2023 Repair Manual

1814-1. Key information
4
Before driving
■If a message regarding the state
of the electronic key or power
switch mode, etc. is shown
To prevent trapping the electronic
key inside the vehicle, leaving the
vehicle carrying the electronic key
on your person without turning the
power switch to OFF or other pas-
sengers from unintentionally taking
the key out of the vehicle, etc., a
message that prompts the user to
confirm the state of the electronic
key or power switch mode may be
shown on the multi-information dis-
play. In those cases, follow the
instructions on the display immedi-
ately.
■If “Key Battery Low Replace
Key Battery” is displayed on
the multi-information display
The electronic key has a low bat-
tery. Replace the electronic key bat-
tery. ( P.538)
■Replacing the battery
 P.538
■Confirmation of the registered
key number
The number of keys already regis-
tered to the vehicle can be con-
firmed. Ask your Toyota dealer for
details.
■If “A New Key has been Regis-
tered Contact Your Dealer for
Details” is displayed on the
multi-information display
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 pos-
session) 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.
●Do not attach me tallic or mag-
netic materials to the keys or
place the keys close to such
materials.
●Do not disassemble the keys.
●Do not attach a sticker or any-
thing else to the surface of the
electronic key.
●Do not place the keys near
objects that produce magnetic
fields, such as TVs, audio sys-
tems and induction cookers.
●Do not place the keys near
medical electrical equipment
such as low-fr equency therapy
equipment or microwave ther-
apy equipment, and do not
receive medical attention with
the keys on your person.
■Carrying the electronic key
on your person
Carry the electronic key 3.9 in.
(10 cm) or more away from elec-
tric appliances that are turned on.
Radio waves emitted from electric
appliances within 3.9 in. (10 cm)
of the electronic key may interfere
with the key, causing the key to
not function properly.
■In case of a smart key system
malfunction or other key-
related problems
 P.587

1824-1. Key information
The electronic keys are
equipped with the following
wireless remote control:Locks all the doors ( P.185)
Unlocks all the doors
( P.185)
Opens the side windows
*
( P.185)
Opens and closes the power
back door (if equipped)
( P.194)
Sounds the alarm
*: This setting must be customized at your Toyota dealer.
■Theft deterrent panic mode
When is pressed for longer
than about 1 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.
To take out the mechanical key,
slide the release lever 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 cyl-
inder, 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.587)
■If you lose your mechanical
keys
 P.586
NOTICE
■When an electronic key is lost
 P.586
Wireless remote control
A
B
C
D
E
Using the mechanical key
A

1844-1. Key information
Be sure to carry the electronic
key of the vehicle if traveling
to a location with unreliable
communications.
 If the smartphone battery is
depleted, the smartphone
cannot be used as Digital
Key. If the battery level is low,
be sure to charge the smart-
phone prior to going out.
 The Digital Key system is
related to the smart key sys-
tem. If the smart key system
has been deactivated in the
vehicle customization setting,
the Digital Key will also be
disabled.
 Depending on the radio wave
environment, the Digital Key
may not be able to be used.
( P.205)
 When transferring vehicle
ownership, make sure to
delete the Digital Keys.
 If the vehicle is not operated
for 14 days or more, the Digi-
tal Key will not connect auto-
matically. Therefore, it may
take some time before the
system operates after a door
handle is touched.
 A part of the services may be
stopped for a certain period of
time due to server mainte-
nance. However, registered
Digital Keys can be used
during the maintenance.
 A smartphone with the Digital Key App enabled will be able
to lock and unlock the doors,
start the hybrid system and
perform any other operations
as same as the electronic key
of the vehicle. Be especially
careful not to lose the smart-
phone or allow it to be stolen.
If the smartphone is lost or
stolen, contact your Toyota
dealer immediately.
 When taking your vehicle to a
Toyota dealer for an inspec-
tion or repairs, make sure to
bring an electronic key.
 With the Digital Key alone, no
vehicle lights will illuminate
when approached to the vehi-
cle. Also, with the Digital Key
alone, some functions, such
as the power back door’s
close & lock (walk-away)
function, etc., cannot be used.

1864-2. Opening, closing and locking the doors
or for approximately 5
seconds while pressing and
holding .
The setting changes each time an
operation is performed, as shown
below. (When changing the setting
continuously, release the buttons,
wait for at least 5 seconds, and
repeat step 2 .)
■Operation signals
Doors: A buzzer sounds and the
emergency flashers flash to indicate
that the doors have been
locked/unlocked. (Locked: Once;
Unlocked: Twice)
Side windows: A buzzer sounds to
indicate that the side windows are
operating.
■Security feature
If a door is not opened within
approximately 60 seconds after the
vehicle is unlocked, the security fea-
ture automatically locks the vehicle
again. (However, depending on the
location of the electronic key, the
key may be detected as being in the
vehicle. In this case, vehicle may be
unlocked.)
■When the door cannot be
locked by the lock sensor on
the surface of the door handle
When the door cannot be locked
even if the lock sensor on the sur-
face of the door handle is touched
by a finger, touch the lock sensor
with the palm.
When gloves are being worn,
remove the gloves.
■Door lock buzzer
If an attempt to lock the doors using
the entry function is made when a
door other than the door you are
locking is open, a buzzer sounds
continuously for 5 seconds. Fully
close all the doors, and lock the
vehicle once more.
■Conditions affecting the opera-
tion of the smart key system or
wireless remote control
 P.205
■If the smart key system or the
wireless remote control does
not operate properly
●Use the mechanical key to lock
and unlock the doors. ( P.587)
●Replace the key battery with a
new one if it is depleted. ( P.538)
Multi-informa-
tion dis-
play/BeepUnlocking func- tion
Exterior: Beeps 3 times
Holding the
driver’s door han-
dle unlocks only
the driver’s door.
Holding the front
passenger’s door
handle with the
sensor (if
equipped)
unlocks all the
doors.
Exterior: Beeps twice
Holding the
driver’s door han-
dle or front pas-
senger’s door
handle with the
sensor (if
equipped)
unlocks all the
doors.

1874-2. Opening, closing and locking the doors
4
Before driving
■If the 12-volt battery is dis-
charged
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.587)
■Customization
Settings (e.g. unlocking function
using a key) can be changed.
(Customizable features: P.618)
■Using the door lock
switches
1 Locks all the doors
2 Unlocks all the doors
■Using the inside lock but-
tons
1 Locks the door
2 Unlocks the door
The front doors can be opened by
pulling the inside handle even if the
lock buttons are in the lock position.
■Locking the front doors from
the outside without a key
1 Move the inside lock button to
the lock position.
2 Close the door.
The door cannot be locked if the
power switch is in ACC or ON, or
the electronic key is left inside the
vehicle.
Depending on the position of the
electronic key, the key may not be
detected correctly and the door may
be locked.
■When all the doors are locked
with the entry function or wire-
less remote control
●The doors cannot be unlocked
with the door lock switch.
●The door lock switches can be
reset by unlocking all the doors
with the entry function or wireless
remote control.
WARNING
■When using the wireless
remote control and operating
the power windows
Operate the power window after
checking to make sure that there
is no possibility of any passenger
having any of their body parts
caught in the side window. Also,
do not allow children to operate
the wireless remote control. It is
possible for children and other
passengers to get caught in the
power window.
Unlocking and locking the
doors from the inside

1884-2. Opening, closing and locking the doors
■Opening the front door
Unlock the door, and pull the
door handle.
■Opening the rear door
Unlock the door, and press the
door opener switch of the
door handle to open the door.
Make sure to se curely press the
door opener switch on the inner
side of the door handle.
■Rear door opener switch oper-
ating conditions
When all of the following conditions
are met:
●The vehicle speed is less than 2
mph (4 km/h)
●The door is unlocked
■If a rear door cannot be opened
using the door opener switch
Check the following:
●The 12-volt battery is not
depleted.
●The door is unlocked.
If a door cannot be opened using
the door opener switch, the door
can be opened using the manual
release button. Firmly press the but-
ton until the door opens.
■When opening the rear door
with the manual release button
in low temperatures
If the manual release button
becomes frozen in low tempera-
tures, it may feel heavier to operate.
■When the vehicle is subjected
to a strong impact
In the event that the vehicle is sub-
ject to a strong impact, the rear door
opener switch cannot be operated
for approximately 10 seconds. In
this case, use the manual release
button.
■If the rear door opener switch is
operated repeatedly over a
short period of time
The system may restrict operation
to prevent overheating. If this hap-
pens, refrain from operating the rear
door opener switch. Normal opera-
tion will return after a short time.
■Rear seat reminder function
As the first reminder so as not to for-
get luggage, etc. in the rear seat,
when the power switch is turned off
after any of the following conditions
are met, a buzze r will sound and a
Opening the doors from
the outside
A
A

1994-2. Opening, closing and locking the doors
4
Before driving
●If the switch on the lower
part of the power back door is
pressed by a hand which is hold-
ing an electronic key
●If the switch on the lower
part of the power back door is
pressed when the electronic key is
in a bag, etc. that is placed on the
ground
●If the switch on the lower
part of the power back door is
pressed with the electronic key
not near the vehicle
■When reconnecting the 12-volt
battery
To enable the power back door to
operate properly, close the back
door manually.
■If the back door opener is inop-
erative
The back door can be unlocked
from the inside.
1 Remove the cover.
To prevent damage, cover the tip of
the screwdriver with a rag.
2 Loosen the screw. 3
Turn the cover.
4 Move the lever.
5 When installing, reverse the
steps listed.
■Customization
Settings (e.g. power back door
opening angle) can be changed.
(Customizable features: P.618)

2004-2. Opening, closing and locking the doors
WARNING
■Back door closer
●In the event that the back door
is left slightly open, the back
door closer will automatically
close it to the fully closed posi-
tion. It takes several seconds
before the back door closer
begins to operate. Be careful
not to catch fingers or anything
else in the back door, as this
may cause bone fractures or
other serious injuries.
●Use caution when using the
back door closer as it still oper-
ates when the power back door
system is canceled.
■Power back door
Observe the following precautions
when operating the power back
door.
Failure to do so may cause death
or serious injury.
●Check the safety of the sur-
rounding area to make sure
there are no obstacles or any-
thing that could cause any of
your belongings to get caught.
●If anyone is in the vicinity, make
sure they are safe and let them
know that the back door is
about to open or close.
●If the power back door system is
turned off while the back door is
operating automatically, the
automatic operation is stopped.
The back door then has to be
operated manually. Take extra
care when on an incline, as the
back door may open or close
unexpectedly.
●If the operating conditions of the
power back door are no longer
met, a buzzer may sound and
the back door may stop opening
or closing. The back door then
has to be operated manually.
Take extra care when on an
incline, as the back door may
open or close abruptly.
●On an incline, the back door
may suddenly shut after it
opens. Make sure the back door
is fully open and secure.
●In the following situations, the
power back door may detect an
abnormality and automatic
operation may be stopped. In
this case, the back door has to
be operated manually. Take
extra care when on an incline,
as the back door may open or
close abruptly.
• When the back door contacts an obstacle
• When the 12-volt battery volt- age suddenly drops, such as
when the power switch is turned
to ON or the hybrid system is
started during automatic opera-
tion

2044-2. Opening, closing and locking the doors
■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 the driver’s door han-
dle, front passenger’s door handle
(if equipped) and back door opener
switch (if equipped). (Only the doors
detecting the key can be operated.)
When starting the hybrid system
or changing power switch modes
The system can be operated when
the electronic key is inside the vehi-
cle.
■If an alarm sounds or a warning
message is displayed
An alarm sounds and warning mes-
sage displays shown on the multi-
information display are used to pro-
tect against unexpected accidents
or theft of the vehicle resulting from
erroneous operation. When a warn-
ing message is displayed, take
appropriate measures based on the
displayed message.
When only an alarm sounds, cir-
cumstances and correction proce-
dures are as follows.
●When an exterior alarm sounds
once for 5 seconds
●When an interior alarm pings con-
tinuously
■If “Key Detected in Vehicle” is
shown on the multi-information
display
An attempt was made to lock the
doors using the smart key system
while the electronic key was still
inside the vehicle. Retrieve the elec-
tronic key from the vehicle and lock
the doors again.
■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 discharged
while the vehicle is not in operation
for a long time.
●In the following situations, the
smart key system may take some
time to unlock the doors. Also the
illuminated entry system may not
operate properly.
• The electronic key has been left in
A
B
SituationCorrection pro-
cedure
An attempt was
made to lock the
vehicle while a
door was open.Close all of the
doors and lock
the doors again.
SituationCorrection pro-cedure
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 to OFF
and close the
driver’s door.

2054-2. Opening, closing and locking the doors
4
Before driving
an area of approximately 11.5 ft.
(3.5 m) of the outside of the vehi-
cle for 40 seconds 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 at
any doors except the driver’s
door. In this case, take hold of the
driver’s door handle, or use the
wireless remote control or the
mechanical key, to unlock the
doors.
■Turning an electronic key to
battery-saving mode
●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 electronic key indi-
cator 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.
■When electronic key function
stops
If the position of the electronic key
has not changed for a certain
amount of time such as when the
electronic key is left somewhere, the
function of the electronic key stops to reduce depletion of the battery.
In this case, function can automati-
cally be restored by moving the
position of the key such as by lifting
it up.
■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, airport or other facil-
ity that generates strong radio
waves or electrical noise
●When the electronic key is in con-
tact with, or is covered 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 wireless key (that
emits radio waves) is being used
nearby
●When carrying the electronic key
together with the following devices
that emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless
communication devices
• 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