2023 TOYOTA PRIUS PRIME stop start

802-1. Plug-in hybrid system
●Motor sounds may be heard from
the engine compartment.
●Sounds may be heard from the
hybrid battery (traction battery)
when the hybrid system starts or
stops.
●Relay operating sounds such as a
snap or soft clank will be emitted
from the hybrid battery (traction
battery), under the rear seats or
under the floor, when the hybrid
system is started or stopped.
●Sounds from the hybrid system
may be heard when the back door
is open.
●Sounds may be heard from the
transmission when the gasoline
engine starts or stops, when driv-
ing at low speeds, or during idling.
●Engine sounds may be heard
when accelerating sharply.
●Sounds may be heard due to
regenerative braking when the
brake pedal is depressed or as
the accelerator pedal is released.
●Vibration may be felt when the
gasoline engine starts or stops.
●Sounds may be heard from near
the hybrid battery (traction battery)
in accordance with the operation
of the air conditioning system or
battery cooler. ( P.109)
■Maintenance, repair, recycling,
and disposal
Contact your Toyota dealer regard-
ing maintenance, repair, recycling
and disposal. Do not dispose of the
vehicle yourself.
In order to make EV mode or
AUTO EV/HV mode available,
charge the hybrid battery (trac-
tion battery) from an external
power source before using the
vehicle.
Even if charging the hybrid battery
(traction battery) has not been com-
pleted, the vehicle can be driven.
However, if there is not enough
charge remaining, it is possible that
the vehicle cannot be driven in EV
mode or AUTO EV/HV mode or the
EV driving range will become
shorter.
■Refilling fuel
Plug-in Hybrid Electric Vehicles can
be driven using electricity charged
from an external power source.
However, as the gasoline engine is
used depending on the situation
(  P.79) even if in EV mode or
AUTO EV/HV mode, and the gaso-
line engine is provided on board as
a power source for driving in HV
mode, it is needed to refueling the
vehicle.
Check the fuel amount and refill
immediately when the fuel level
becomes low. ( P.279)
■If the vehicle is not used for a
long time
●The 12-volt battery may dis-
charge. In this event, charge the
12-volt battery. ( P.589)
In order to prevent the hybrid bat-
tery (traction batt ery) from becom-
ing extremely low in charge,
Charging ( P.94)

812-1. Plug-in hybrid system
2
Plug-in hybrid system
charge the hybrid battery (traction
battery) from external power
source or start the hybrid system
at least once every 2 or 3 months,
and turn the power switch off after
the gasoline engine has stopped
automatically. (If the gasoline
engine does not start up even
after approximately 10 seconds
have passed since the “READY”
indicator came on, the power
switch can be turned to off without
any further action.)
When the 12-volt battery is dis-
charged, refer to P.589, “If the 12-
volt battery is discharged” and
perform the correction procedure.
●When the vehicle is left with the
AC charging cable connected, the
electricity consumption amount of
the 12-volt battery increases due
to controls, such as the system
checking, operating. When the AC
charging cable is not needed,
remove it from the vehicle.
When driving with the gasoline
engine stopped, a sound, which
changes in accordance with the
driving speed, will be played in
order to warn people nearby of
the vehicle’s approach. The
sound will stop when the vehicle
speed exceeds approximately
22 mph (35 km/h).
■Acoustic Vehicle Alerting Sys-
tem
In the following cases, the Acoustic
Vehicle Alerting System may be dif-
ficult for surrounding people to hear.
●In very noisy areas
●In the wind or the rain
Also, as the Acoustic Vehicle Alert- ing System is installed on the front
of the vehicle, it may be more diffi-
cult to hear from the rear of the vehi-
cle compared to the front.
■When “Acoustic Vehicle Alert-
ing System Malfunction Visit
your Dealer” is displayed on the
multi-information display
The Acoustic Vehicle Alerting Sys-
tem may be malfunctioning. Have
the vehicle inspected by your
Toyota dealer immediately.
*: This function can only be used in the mainland U.S.A. It cannot be
used in other states and territo-
ries, including Alaska and Hawaii.
This system operates based on
the driving situation and traffic
information to enhance fuel
economy.
For details about Predictive effi-
cient drive, refer to “MULTIME-
DIA OWNER’S MANUAL”.
■Predictive deceleration sup-
port
 When the vehicle approaches
to predictive deceleration sup-
port points registered in the
navigation system, the refer-
ence operation range ( ) of
the ECO Accelerator Guid-
ance ( P.163) on the multi-
information display will be
turned off to encourage the
driver to reduce excessive
acceleration.
Acoustic Vehicle Alerting
System
Predictive efficient drive
(vehicles with navigation
system)
*
A

872-1. Plug-in hybrid system
2
Plug-in hybrid system
When a certain level of impact is
detected by the impact sensor,
the emergency shut off system
blocks off the high voltage cur-
rent and stops the fuel pump to
minimize the risk of electrocu-
tion and fuel leakage.
If the emergency shut off system
activates, your vehicle will not
restart. To restart the hybrid sys-
tem, contact your Toyota dealer.
A message is automatically dis-
played when a malfunction
occurs in the hybrid system or
an improper operation is
attempted.
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions.
■If a warning light comes on, a
warning message is displayed
or the 12-volt battery is discon-
nected
The hybrid system may not start. In
that case, try to start the system
again. If the “READY” indicator does
not come on, contact your Toyota
dealer.
NOTICE
●If the vehicle has not been refu-
eled for a certain amount of time
and it is possible that the quality
of the fuel remaining in the tank
has changed, “No New Fuel has
been Added Recently Please
refuel” is displayed on the multi-
information display when the
power switch is turned to ON. If
the message is displayed, refuel
the vehicle immediately.
Emergency shut off sys-
tem
Hybrid warning message

1042-2. Charging
be unlocked if power supply is
interrupted due to a power out-
age, etc., after the AC charging
connector is automatically
locked.
*2: The AC charging connector can be unlocked by similar opera-
tions to that of “Auto Lock”
(Default setting).
*3: When the end time of the charging schedule “Start-Stop”
or “Start and stop at set times”
setting is reached, the AC
charging connector is unlocked
even if it is not fully charged.
■AC charging connector lock
function
●If the AC charging connector is
locked/unlocked repeatedly, it
may not work temporary due to
protect the system by AC charging
system. In this case, wait for a
while before co nnecting the AC
charging connector to AC
charging inlet again.
●The AC charging connector lock
function does not guarantee that
theft of the AC charging cable will
be prevented, and is not neces-
sarily effective for all mischiefs.
■Security function for unlocking
If the AC charging connector is not
removed within approximately 30
seconds after the vehicle is
unlocked, the security function auto-
matically locks the connector again.
■When the AC charging connec-
tor cannot be inserted into the
AC charging inlet
Check that the connector lock pin is
not lowered.
If the connector lock pin is
extended, the connector lock is
operating. Unlock the doors using
the smart key system or wireless remote control and unlock the AC
charging connector lock and check
that the connector
lock pin is not
lowered.
■If the AC charging connector
cannot be unlocked
The AC charging connector can be
unlocked by operating the emer-
gency release lever.
1 Open the back door. ( P.193,
194)
2 Remove the cover inside the lug-
gage compartment as shown in
the illustration.
3 Move the emergency release
lever in the direction shown in
the illustration.
*
The charging connector is unlocked
and can be removed.
*: Move the emergency release
lever only in the direction shown in
the illustration. Even if a click
sound is heard after beginning
operation, do not stop pulling the
emergency release lever until it
cannot be moved. If the emer-
gency release lever is moved in
any other direction, it may be
damaged.

1092-2. Charging
2
Plug-in hybrid system
start time. (P.123)
■Hybrid battery (traction bat-
tery) warming control
(Alaska and Canada only)
This control operates after the
AC charging cable remains con-
nected to the vehicle for 3 days
and “Battery Heater” automati-
cally stops. It automatically insu-
lates the hybrid battery (traction
battery) in extremely low tem-
peratures.
 This control stops 31 days
after the AC charging cable is
connected, even if it is still
connected to the vehicle.
 When this control operates,
charging schedule settings
are ignored and charging
starts.
■“Battery Cooler”
When the hybrid battery (trac-
tion battery) is hot and the AC
charging cable is connected to
the vehicle, this function cools
the hybrid battery (traction bat-
tery) before charging is carried
out.
 “Battery Cooler” will operate
when the “Battery Cooler” of
the “Charging Settings” on the
multi-information display is
on. ( P.169)
 When the charging voltage is
120 V, the function does not
operate.
■Traction battery heating and
cooling system (“Battery
Heater” and “Battery Cooler”)
●The system operates when the
hybrid battery (traction battery) is
below or above a certain tempera-
ture.
●The system may operate when
charging is not being performed.
●When the charging schedule is
used ( P.123), this function will
operate according to the charging
schedule.
■“Battery Heater”
●When “Battery Heater” is operat-
ing, the charging indicator illumi-
nates.
●When the AC charging cable is
removed from the vehicle or
remains connected to the vehicle
for approximately 3 days, the sys-
tem automatically stops.
●When “Battery Heater” is operat-
ing during charging, the charging
time may be longer than normal.
●When the shift position is changed
to any position other than P while
“Battery Heater” is operating, the
hybrid battery (traction battery)
heating operation stops.
●“Battery Heater” may operate
even when the hybrid battery
(traction battery) is fully charged
depending on the temperature of
the hybrid battery (traction bat-
tery).
• The remaining charge of the hybrid battery (traction battery)
decreases when “Battery Heater”
operates. The charging operation
may start again to charge the
hybrid battery (traction battery).
• “Charging Stopped Due to Pulled Charging Connector” may be
shown when the charging connec-
tor is removed while recharging.
( P.143)

1132-2. Charging
2
Plug-in hybrid system
■Safety functions
●The hybrid system will not start
while the AC charging cable is
attached to the vehicle, even if the
power switch is operated.
●If the AC charging cable is con-
nected while the “READY” indica-
tor is illuminated, the hybrid
system will stop automatically and
driving will not be possible.
■During charging
●The charging starting time may
differ depending on the state of
the vehicle, but this does not indi-
cate a malfunction.
●Cooling fan sounds may be heard
from near the luggage compart-
ment.
●During charging, sounds may be
heard from near the hybrid battery
(traction battery) in accordance
with the operation of the air condi-
tioning system or “Battery Cooler”.
●During and after charging, the lug-
gage compartment and its sur-
rounding area in which the
onboard traction battery charger is
installed may get warm.
●The surface of the CCID
(Charging Circuit Interrupting
Device) may become hot, but this
does not indicate a malfunction.
●Depending on radio wave condi-
tions, interference may be heard
on the radio.
■When charging using a public
charging facility
When charging using a public charging facility, check the setting of
the charging schedule function.
●When the charging schedule is
registered, temporarily turn off the
function or turn “Charge Now” on.
(
 P.128, 132)
●When the charging schedule is set
to on, charging will not start even
if the AC charging cable is con-
nected. Also, charging fee may
occur due to connection of the AC
charging cable.
■Using a DC Charger
DC Chargers cannot be used with
this vehicle.
■Capacity reduction of the
hybrid battery (traction battery)
The capacity of the hybrid battery
(traction battery) will decline gradu-
ally when the hybrid battery (traction
battery) is in use. The rate at which
it declines will diff er in accordance
with environmental conditions and
the way in which the vehicle is used.
Observing the following can help
suppress battery capacity decline.
●Avoid parking the vehicle in areas
with a high temperature under
direct sunlight when the hybrid
battery (traction battery) is fully
charged.
●Avoid accelerating and decelerat-
ing frequently and suddenly when
EV driving.
●Avoid frequent driving near the top
speed for EV driving. ( P.79)
●Leave a low level of charge in the
hybrid battery (traction battery)
when leaving the vehicle undriven
for a long period of time.
After confirming that EV mode or
AUTO EV/HV mode has switched
to HV mode, turn the power switch
off.
●Use the charging schedule func-
tion as much as possible in order
to fully charge t he hybrid battery
(traction battery) immediately
before starting off. ( P.123)
Things to know before
charging
Make sure to read the fol-
lowing precautions before
charging the hybrid battery
(traction battery).

1182-2. Charging
4Remove the charging con-
nector cap and secure it to
the cable.
5 Insert the charging connector
into the AC charging inlet.
Align the guide position on the bot-
tom of the charging connector, and
push the charging connector
straight into the AC charging inlet
as far as possible.
Once a click sound is heard, check
that the charging connector is
securely locked.
When the charging connector is
inserted straight as far as possible,
it will automatically lock. ( P.102)
6 Confirm that the charging
indicator of the charging port
is illuminated.
Charging will not start if the charging indicator does not illumi-
nate when the charging connector
is inserted. (
P.96)
If the charging indicator is flashing,
the charging schedule is registered.
(  P.123)
If the error warning indicator on the
CCID (Charging Circu it Interrupting
Device) flashes during charging,
check P.118 and follow the correc-
tion procedure.
The charging indicator will turn off
when charging is completed.
The charging indica tor will also turn
off when charging is stopped for
some reason before completion. In
this case, refer to P.139.
■When connecting the AC
charging connector
If the door is opened or the power
switch is turned to ON with the AC
charging connecto r connected, the
charging cable indicator turns on to
inform that the AC charging connec-
tor is connected.
■If the charging indicator of the
charging port flashes after con-
necting the AC charging cable
The charging schedule ( P.123) is

1192-2. Charging
2
Plug-in hybrid system
registered and charging cannot be
performed. To cancel charging
using the charging schedule and
start charging, perform any of the
following procedures.
●Turn “Charge Now” on (P.128,
132)
●While the charging indicator is
flashing, remove and reconnect
the charging connector immedi-
ately
■When the charging connector
cannot be inserted into the AC
charging inlet
 P.104
■Safety function
If the latch release button is
pressed, charging will not begin
even if the AC charging cable is
connected.
Also, charging will be stopped if the
latch release button is pressed and
held for several seconds during
charging. When restarting charging,
reinsert the charging connector after
pulling it out, and check that the
charging indicator of the charging
port illuminates.
■Charging time may increase
 P.114
■While charging
When the power switch is turned to
ON and the energy monitor is dis-
played on the Multimedia Display,
the charging connector is displayed
on the energy monitor and the flow
of electricity during charging is dis-
played ( P.173).
■When your circuit breaker trips
during charging
The upper limit of the charging cur-
rent can be changed on the multi-
information display or Multimedia
Display.
The maximum charging current is
limited to less than or equal to the
selected current.
*
If the breaker still trips while
charging, even after changing the
upper limit of the charging current,
check if the connected power
source meets the specified charging
conditions. ( P.106)
*: Restricting the charging current
will lengthen the charging time.
●Setting operations on multi-infor-
mation display
For detail regarding the multi-infor-
mation display, refer to P.161.
1 Press or of the meter
control switches to select .
2 Press or of the meter
control switches to select “
Vehicle Settings”, and then press
and hold .
3 Press or of the meter
control switches to select
“Charging Settings”, and then
press .
The “Charging Settings” screen will
be displayed.
4 Press or of the meter
control switches to select
“Charging Current”, and then
press .
The “Charging Current” screen will
be displayed.
5 Press or of the meter
control switches to select “8A”,
and then press .
●Setting operations on Multimedia
Display
For detail regardin g the Multimedia
Display, refer to “MULTIMEDIA
OWNER’S MANUAL”.
1 Touch on the main menu.