stop start TOYOTA PRIUS PRIME 2023 Owner's Guide

1643-1. Instrument cluster
tions, and a score result that
evaluates the current driving
status.ECO Accelerator Guidance
“Eco Score”
 ECO Accelerator Guidance
ECO area
Shows that the vehicle is being
driven in an Eco-friendly manner.
Reference operation range
A zone is displayed in blue under
the Eco area which can be used as
a reference operation range for
using the accelerator pedal accord-
ing to driving conditions such as
starting off and cruising.
Current acceleration
The ECO Accelerator Guidance
display changes according to the
driving status, such as when start-
ing off or cruising. It is easier to drive in an Eco-
friendly manner by driving accord-
ing to the display showing the
accelerator pedal operations and
staying within the reference opera-
tion range.

“Eco Score”
The driving status for the following
3 situations are evaluated in 5 lev-
els: Smooth start-off acceleration
(“Start”), driving without sudden
acceleration (“Cruise”) and smooth
stopping (“Stop”). Each time the
vehicle is stopped, a score result is
displayed out of a perfect score of
100 points.
Score result
Eco start status
Eco cruise status
Eco stop status
3 situations are displayed with each
icon while driving.
How to read the bar display:
A
B
A
B
C
A
B
C
D

1653-1. Instrument cluster
3
Vehicle status information and indicators
Not yet evaluated
Low
High
After the hybrid system is started,
the Eco score will not be displayed
until the vehicle speed exceeds
approximately 19 mph (30 km/h).
The Eco score will be reset each
time the hybrid system is started.
■Elapsed time after start-
ing/EV Driving RatioEV driving ratio after starting
The percent traveled using only
electric motor power after starting
the hybrid system is displayed.
*
Elapsed time after starting
Displays the elapsed time since
hybrid system start.
*
*
: It is reset each time the hybrid system stops.
■Solar charging information
screen (if equipped)
 P.173
■Electricity consumption
When the unit is set to “miles/kWh”:
Electricity consum ption is the con-
sumption rate of the electricity when
EV driving is performed and equiva-
lent to the fuel consumption for the
gasoline vehicles. For this vehicle,
driven distance per kWh of electric-
ity consumed (“miles/kWh”) is dis-
played as electricity consumption on
each screen.
When the unit is set to “km/kWh” or
“kWh/100km”: Electricity consump-
tion is the consumption rate of the
electricity when EV driving is per-
formed and equivalent to the fuel
consumption for the gasoline vehi-
cles. For this vehicl e, electricity con-
sumed per 100 km (“kWh/100 km”)
or driven distance per kWh of elec-
tricity consumed (“km/kWh”) is dis-
played as electricity consumption on
each screen.
■ECO Accelerator Guid-
ance/“Eco Score” will not oper-
ate when
The ECO Accelerator Guid-
ance/“Eco Score” will not operate in
the following situations:
●The Hybrid System Indicator is not
operating.
●The vehicle is being driven using
the dynamic radar cruise control.
Select to display the operational
status of the following systems:
 LTA (Lane Tracing Assist)
( P.305)
 LCA (Lane Change Assist) (if
A
B
C
A
B
Driving support system
information display

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.

1984-2. Opening, closing and locking the doors
operation to prevent the power back
door from suddenly shutting.
■Back door closing assist
If the back door is lowered manually
when the back door is stopped at an
open position, the back door will
fully close automatically.
■Back door reserve lock function
This function is a function which
reserves locking of all doors, before-
hand, when the power back door is
open.
When the following procedure is
performed, all the doors except the
power back door are locked and
then power back door will also be
locked at the same time it is closed.
1 Close all doors, except the back
door.
2 During the power back door clos-
ing operation, lock the doors
using the smart key system from
the side doors ( P.185) or the
wireless remote control.
(  P.185)
Operation signals will indicate that
all the doors have been closed and
locked. ( P.186)
●If the electronic key is placed
inside the vehicle after starting a
close operation via the door
reserve lock function, the elec-
tronic key may become locked
inside the vehicle.
●If the power back door does not
fully close due to the operation of
the jam protection function, etc.,
while the back door is automati-
cally closing after a door reserve
lock operation is performed, the
door reserve lock function is can-
celed and all the doors will unlock.
●Before leaving the vehicle, make
sure that all the doors are closed
and locked.
■Close & lock (Walk-Away) func-
tion operating conditions
This function can be operated when
all of the followin g conditions are met:
●Close & lock (Walk-Away) function
is enabled.
●An electronic key is not detected
within the vehicle.
●All of the doors other than the
power back door are closed.
●The brake pedal is not depressed.
●The power switch is off.
●The electronic key is within the
effective range (detection areas).
■Situations in which the close &
lock (Walk-Away) function may
not operate properly
In the following situ ations, the func-
tion may not operate properly:
●When the smart key system does
not operate properly.
●When the close & lock function
does not operate properly.
●When moving away from the back
door while the close & lock (Walk-
Away) function is in the standby
state.
■Close & lock function* operat-
ing conditions
*: This setting can be customized by
your Toyota dealer.
This function can be operated when
all of the following conditions are
met:
●An electronic key is not detected
within the vehicle.
●All of the doors other than the
power back door are closed.
●The power switch is in OFF.
■Situations in which the close &
lock function* may not operate
properly
*: This setting can be customized by
your Toyota dealer.
In the following situ ations, the close
& lock function may not operate
properly:

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

2024-2. Opening, closing and locking the doors
The settings of the power back
door system can be changed by
displaying “PBD” from “
Vehicle Settings” on of the
multi-information display. (
P.166)
The changed power back door set-
tings are not reset by turning the
power switch to OFF. In order to
restore the original settings, they
need to be changed back on the
of the multi-information display.
The open position of the power
back door can be adjusted.
1Stop the back door in the
desirable position. ( P.194)
2 Press and hold the
switch on the lower part of
the back door for approxi-
mately 2 seconds.
When the settings are completed,
the buzzer sounds 4 times.
When opening the back door the
next time, the back door will stop at
that position.
■Canceling the adjusted open
position of the back door
Press and hold the switch on
NOTICE
●Do not apply excessive force to
the back door while the power
back door is operating.
●Take care not to damage the
sensors (installed on the right
and left edges of the power
back door) with a knife or other
sharp object. If the sensor is
disconnected, the power back
door will not close automati-
cally.
■Close & lock function*
*
: This setting can be customized by your Toyota dealer.
When closing the power back
door using the close & lock func-
tion, a different buzzer than the
normal one will sound before the
operation begins.
To check that the operation has
started correctly, check that a dif-
ferent buzzer than the normal one
has sounded.
Additionally, when the power back
door is fully closed and locked,
operation signals will indicate that
all of the doors have been locked.
(  P.186)
Before leaving the vehicle, make
sure that the operational signals
have operated and that all of the
doors are locked.
Changing settings of the
power back door system
(vehicles with power back
door)
Adjusting the open posi-
tion of the back door
(vehicles with power back
door)

2034-2. Opening, closing and locking the doors
4
Before driving
the lower part of the back door for
approximately 7 seconds.
After the buzzer sounds 4 times, it
sounds twice more. When the
power back door does the opening
operation the next time, the door will
open to the initial settings position.
■Customization
The opening position can be set
with the multi-information display.
(  P.166)
Priority for the stop position is given
to the last position set by either the
switch on the lower part of the
back door or multi-information dis-
play.
■Antenna location
Antenna outside the cabin
(driver’s side)
Antenna outside the cabin (front
passenger’s side) (if equipped)
Antenna outside the luggage
compartment (if equipped)
Antennas inside the cabin
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.185)
 Locks and unlocks the back
door (if equipped) ( P.192)
 Starts the hybrid system
( P.251)
A
B
C
D

2074-2. Opening, closing and locking the doors
4
Before driving
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, mud, etc. Clean
the lock sensor and attempt to
operate it again.
●A sudden approach to the effec-
tive range or door handle may pre-
vent the doors from being
unlocked. In this case, return the
door handle to the original position
and check that the doors unlock
before 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.622)
●Battery-saving mode can reduce
the power consumption of elec-
tronic keys. ( P.205)
■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 operating the
system from the outside of the vehi-
cle.
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-
ate properly. (The alarm may go off
accidentally, or the door lock pre-
vention may not operate.)
■If the smart key system does
not operate properly
●Locking and unlocking the doors:
Use the mechanical key.
(  P.587)
●Starting the hybrid system:
P.588
■Customization
Settings (e.g. smart key system)
can be changed.
(Customizable features: P.622)
If the smart key system has been
deactivated in a customized setting,
refer to the explanations for the fol-
lowing operations.
●Locking and unlocking the doors:
Use the wireless remote control or
mechanical key. ( P.185, 587)
●Starting the hybrid system and
changing power switch modes:
P.588
●Stopping the hybrid system:
P.253
WARNING
■Caution regarding interfer-
ence with electronic devices
●People with implantable car-
diac pacemakers, cardiac
resynchronization therapy-
pacemakers or implantable car-
dioverter defibrillators should
keep away from the smart key
system antennas. ( P.203)
The radio waves may affect the
operation of such devices. If
necessary, the entry function
can be disabled. Ask your
Toyota dealer fo r details, such
as the frequency of radio waves
and timing of the emitted radio
waves. Then, consult your doc-
tor to see if you should disable
the entry function.

2395-1. Before driving
5
Driving
5-1.Before driving
■Starting the hybrid system
 P.251
■Driving
1 With the brake pedal
depressed, shift the shift
position to D.
Check that the shift position indica-
tor shows D.
2If the parking brake is set,
release the parking brake.
( P.263)
If the parking brake is in automatic
mode, the parking brake will be
released automatically. ( P.264)
3 Gradually release the brake
pedal and gently depress the
accelerator pedal to acceler-
ate the vehicle.
■Stopping
1 Depress the brake pedal.
2 If necessary, set the parking
brake.
If the vehicle is to be stopped for an
extended period of time, shift the
shift position to P. ( P.257)
■Parking the vehicle
1 Depress the brake pedal to
stop the vehicle completely. 2
If the parking brake is
released, set the parking
brake. ( P.263)
3 Shift the shift position to P.
( P.257)
Check that the shift position indica-
tor shows P and the parking brake
indicator is illuminated.
4Press the power switch to
stop the hybrid system.
5 Slowly release the brake
pedal.
6 Lock the door, making sure
that you have the electronic
key on your person.
If parking on a hill, block the wheels
as needed.
■Starting off on a steep
uphill
1 Firmly depress the brake
pedal and shift the shift posi-
tion to D.
The hill-start assi st control will be
activated.
2 Set the parking brake.
( P.263)
3 Release the brake pedal and
gently depress the accelera-
tor pedal to accelerate the
vehicle.
4 Release the parking brake.
( P.263)
■For electricity-saving and fuel-
efficient driving
Understand the system characteris-
tics of the vehicl e to use the func-
tions of the hybrid system. Also,
keep in mind that Plug-in Hybrid
Electric Vehicles are similar to con-
Driving the vehicle
The following procedures
should be observed to
ensure safe driving:
Driving procedure

2405-1. Before driving
ventional vehicles, and it is neces-
sary to refrain from activities such
as sudden acceleration. Refer to
“Plug-in Hybrid Electric Vehicle driv-
ing tips”. ( P.88)
■Driving in the rain
●Drive carefully when it is raining,
because visibility will be reduced,
the windows may become fogged-
up, and the road will be slippery.
●Drive carefully when it starts to
rain, because the road surface will
be especially slippery.
●Refrain from high speeds when
driving on an expressway in the
rain, because there may be a
layer of water between the tires
and the road surface, preventing
the steering and brakes from
operating properly.
■ECO Accelerator Guidance
( P.163)
It is easier to driv e in an Eco-friendly
manner by driving while referring to
the ECO Accelerator Guidance dis-
play. Also, by using the ECO Accel-
erator Guidance it is easier to
increase the “Eco Score” evaluation.
●When starting off:
While staying within the ECO Accel-
erator Guidance range, gradually
depress the accelerator pedal and
accelerate to the desired speed. If
excessive acceleration is avoided,
the “Start” score will increase.
●When driving:
After accelerating to the desired
speed, release the accelerator
pedal and drive at a stable speed
within the ECO Accelerator Guid-
ance range. By keeping the vehicle
within the ECO Accelerator Guid-
ance range, the “C ruise” score will
increase.
●When stopping:
When stopping the vehicle, early releasing the accelerator pedal will
cause the “Stop” sco
re to increase.
■Restraining the hybrid system
output (Brake Override System)
●When the accelerator and brake
pedals are depressed at the same
time, the hybrid system output
may be restrained.
●A warning message is displayed
on the multi-information display
while the system is operating.
■Breaking in your new Toyota
To extend the life of the vehicle,
observing the following precautions
is recommended:
●For the first 200 miles (300 km):
Avoid sudden stops.
●For the first 600 miles (1000 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in low gears.
• Do not drive at a constant speed for extended periods.
■Operating your vehicle in a for-
eign country
Comply with the relevant vehicle
registration laws and confirm the
availability of th e correct fuel.
(  P.601)
WARNING
Observe the following precau-
tions.
Failure to do so may result in
death or serious injury.
■When starting the vehicle
Always keep your foot on the
brake pedal while stopped with
the “READY” indi cator is illumi-
nated. This prevents the vehicle
from creeping.