battery TOYOTA PRIUS PRIME 2023 Owners Manual

PRIUS PRIME_OM_OM47E73U_(U)
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Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Plug-in hybrid
systemPlug-in hybrid system features, charging method,
etc.
(Main topics: Driving tips, charging methods)
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, power windows)
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, SRS airbag and headlight aim instructions for
Canadian owners
IndexSearch by symptom
Search alphabetically

4TABLE OF CONTENTS
Safe Exit Assist .............359
Intuitive parking assist... 363
RCTA (Rear Cross Traffic Alert) function .............. 373
RCD (Rear Camera Detec- tion) function................ 378
PKSB (Parking Support Brake).......................... 382
Parking Support Brake func- tion (static objects to the
front and rear/static objects
around the vehicle)...... 388
Parking Support Brake func- tion (rear-crossing vehicles).................................... 392
Parking Support Brake func- tion (rear pedestrians) . 393
Toyota Teammate Advanced Park ............................. 395
Driving mode select switch .................................... 422
Driving assist systems .. 424
5-6. Driving tips Winter driving tips ......... 429
6-1. Using the air conditioning system and defogger
Automatic air conditioning system ......................... 434
Heated steering wheel/seat heaters/seat ventilators 443
6-2. Using the interior lights Interior lights list ............ 446
6-3. Using the storage features List of storage features . 450Luggage compartment fea-
tures ............................ 454
6-4. Using the other interior fea- tures
Other interior features ... 456
Power outlet (1500 W)... 468
When the power outlet (1500 W) cannot be used properly
.................................... 475
Garage door opener ...... 477
7-1. Maintenance and care Cleaning and protecting the vehicle exterior ............ 486
Cleaning and protecting the vehicle interior ............. 490
7-2. Maintenance Maintenance requirements.................................... 494
General maintenance .... 495
Emission inspection and maintenance (I/M) pro-
grams .......................... 498
7-3. Do-it-yourself maintenance Do-it-yourself service pre-cautions ....................... 499
Hood .............................. 501
Positioning a floor jack .. 502
Engine compartment ..... 504
12-volt battery................ 511
Tires .............................. 513
Replacing the tire .......... 526
Tire inflation pressure .... 532
Wheels .......................... 534
Air conditioning filter ...... 53
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6Interior features
7Maintenance and care

5TABLE OF CONTENTS
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Electronic key battery....538
Checking and replacing fuses............................ 540
Headlight aim ................ 542
Exterior lights ................ 543
8-1. Essential information Emergency flashers ...... 546
If your vehicle has to be stopped in an emergency.................................... 547
If the vehicle is submerged or water on the road is rising.................................... 548
8-2. Steps to take in an emer- gency
If your vehicle needs to be towed........................... 550
If you think something is wrong .......................... 554
If a warning light turns on or a warning buzzer sounds.................................... 555
If a warning message is dis- played.......................... 566
If you have a flat tire...... 574
If the hybrid system will not start ............................. 584
If you lose your keys ..... 586
If the electronic key does not operate properly .......... 587
If the 12-volt battery is dis- charged ....................... 589
If your vehicle overheats 594
If the vehicle becomes stuck .................................... 5979-1. Specifications
Maintenance data (fuel, oil level, etc.) .................... 600
Fuel information............. 607
Tire information ............. 609
9-2. Customization Customizable features... 618
9-3. Initialization Items to initialize ............ 634
10-1.For owners Reporting safety defects for U.S. owners ................. 636
Reporting safety defects for Canadian owners ........ 637
Seat belt instructions for Canadian owners (in
French) ........................ 637
SRS airbag instructions for Canadian owners (in
French) ........................ 639
Headlight aim instructions for Canadian owners (in
French) ........................ 646
What to do if... (Trouble- shooting) ..................... 648
Alphabetical Index ........ 650
8When trouble arises
9Vehicle specifications
10For owners
Index

722-1. Plug-in hybrid system
2-1.Plug-in hybrid system
The illustration is an example for explanation and may differ from the actual
item.
Gasoline engine
Electric motor (traction motor)
Plug-in hybrid system features
The plug-in hybrid system is a system excellent in both eco-
nomical efficiency of electric vehicles and practicality of Plug-
in Hybrid Electric Vehicles
 EV driving can be performed using electricity charged from an
external power source.
*
If the amount of electricity remaining in the hybrid battery (trac-
tion battery) becomes low, the ve hicle is automatically controlled
in such a way that it can be driven as a Plug-in Hybrid Electric
Vehicle through the joint use of the gasoline engine.
*: The EV driving range will vary in a ccordance with conditions such as
vehicle speed, the amount of charge remaining in the hybrid battery
(traction battery) and the usage of the air conditioning system. The gas-
oline engine may also be used simultaneously in accordance with driv-
ing conditions.
System components
A
B

732-1. Plug-in hybrid system
2
Plug-in hybrid system
The plug-in hybrid system oper-
ates in the following modes.
The meter display can be used to
check which mode the plug-in
hybrid system is currently being
driven in. (P.150)
■EV mode
When a sufficient amount of
electricity is remaining after
charging
*1, EV driving is per-
formed using electricity stored in
the hybrid battery (traction bat-
tery).
*2
When in EV mode, the EV drive
mode indicator illuminates.
*1: The amount of remaining charge can be checked on the SOC
(State of Charge) gauge.
( P.155)
*2: Depending on the situation, EV
driving may be canceled and
both gasoline engine and electric
motor are used. ( P.79)
■AUTO EV/HV mode
Normally, the electricity stored
in the hybrid battery (traction
battery) is used for EV driving.
However, when more power is
required, such as for driving
uphill or accelerating suddenly,
the gasoline engine starts and
provides powerful acceleration
by strongly depressing the
accelerator pedal.
When the vehicle is in a condi-
tion where EV driving is possi-
ble, EV mode and AUTO EV/HV
mode can be switched by oper-
ating the switch. ( P.74)
When in AUTO EV/HV mode, the
AUTO EV/HV mode indicator illumi-
nates.
■HV mode
When in HV mode, the vehicle is
driven using both the gasoline
Plug-in hybrid system
operation mode

742-1. Plug-in hybrid system
engine and electric motor.
(P.77)
• If electricity needed for EV driving in EV mode or AUTO
EV/HV mode is not remaining,
the operation mode will be
automatically switched to HV
mode.
• The operation mode can be switched to HV mode at any
timing by operating the switch
to keep electricity for EV driv-
ing etc. ( P.74).
* Switching
to HV mode when driving on a
highway or when driving uphill
is recommended in order to
conserve battery power.
When in HV mode, the HV drive
mode indicator illuminates.
*: The EV driving range may reduce even after switching to HV mode.
■Hybrid battery (traction bat-
tery) charge mode ( P.75)
Electricity generated by the gas-
oline engine can be used to
charge the hybrid battery (trac-
tion battery) by switching to the
hybrid battery (traction battery)
charge mode when electricity
needed for EV driving is not remaining.
*
• The system may not be able
to switch to the hybrid battery
(traction battery) charge
mode due to the state of the
plug-in hybrid system.
( P.76)
• Charging time differs depend- ing on the driving state of the
vehicle when driving in hybrid
battery (traction battery)
charge mode.
When in the hybrid battery (traction
battery) charge mode, the hybrid
battery charge mode indicator illu-
minates.
*: When in the hybrid battery (trac-tion battery) charge mode, the
hybrid battery can be charged
while driving. However, the gaso-
line engine runs to charge the
battery and fuel consumption
becomes higher compared with
driving in HV mode.
The plug-in hybrid system oper-
ation modes can be switched
using the switches.
■Switching the plug-in
hybrid system operation
modes
Press the AUTO EV/HV mode
switch or EV/HV mode selection
switch to change modes as the
following table shows.
When in EV mode, the EV drive
Plug-in hybrid system
operation mode selection
switches

752-1. Plug-in hybrid system
2
Plug-in hybrid system
mode indicator illuminates.
When in AUTO EV/HV mode, the
AUTO EV/HV mode indicator illumi-
nates.
When in HV mode, the HV drive
mode indicator illuminates.
AUTO EV/HV mode switch
*: If there is not enough charge remaining in the hybrid battery
(traction battery) to allow EV driv-
ing, AUTO EV/HV mode will not
be selectable.
EV/HV mode selection switch
*: If there is not enough charge remaining in the hybrid battery
(traction battery) to allow EV driv-
ing, EV mode will not be select-
able.
■Switching to the hybrid bat-
tery (traction battery)
charge mode
Press and hold the EV/HV mode
selection switch.
Take your hand off the switch once
the hybrid battery charge mode
indicator starts to blink.
The hybrid battery charge mode
indicator illuminates when the
switch to hybrid battery (traction
battery) charge mode is complete.
When the hybrid battery (traction
battery) is sufficient charged
*, the
hybrid battery (traction battery)
charge mode is automatically can-
celed and the operation mode will
be switched to HV mode.
The hybrid battery (traction bat-
tery) charge mode will be canceled
by pressing AUTO EV/HV mode
switch or EV/HV mode selection
switch.
*: The maximum charge amount in the hybrid battery (traction bat-
tery) charge mode is approxi-
mately 80% of the sufficient
charged capacity for the charging
Current modeMode after switching
EV modeAUTO EV/HV mode
AUTO EV/HV modeEV mode
HV modeAUTO EV/HV
mode
*
Current modeMode after switching
EV modeHV mode
AUTO EV/HV modeHV mode
HV modeEV mode*

762-1. Plug-in hybrid system
from an external power source.
■If the plug-in hybrid system
operation mode cannot be
changed
In the following situations, the plug-
in hybrid system operation mode
cannot be changed even if the
AUTO EV/HV mode switch or
EV/HV mode selection switch is
pressed. (In this case, the warning
message is displayed on the multi-
information displa y when the switch
is pressed.)
●When electricity needed for EV
driving is not remaining (when in
EV mode or AUTO EV/HV mode)
●When the hybrid battery (traction
battery) is almost completely
charged (hybrid battery [traction
battery] charge mode)
■When switching from EV mode
to another mode using the
switch
When the power switch is turned off,
operation mode switching is can-
celed and the system returns to EV
mode the next time the vehicle is
started.
*
*
: If there is not enough charge remaining in the hybrid battery
(traction battery) to allow EV driv-
ing, the system switches to HV
mode.
■Hybrid battery (traction battery)
charge mode
●The following may occur to protect the system, etc.
• Cannot switch to hybrid battery (traction battery) charge mode or
cannot cancel it
• Gasoline engine does not start or stops even after switching to
hybrid battery (traction battery)
charge mode
●If a load to the system is large,
such as when the power con-
sumption of the air conditioning
system is large or when the tem-
perature of the engine coolant is
high, it may take longer time than
usual to charge using the hybrid
battery (traction battery) charge
mode, or charging to the hybrid
battery (traction battery) may not
be performed.
■When in EV mode
In EV mode, EV driving (driving
WARNING
■When using the hybrid bat-
tery (traction battery) charge
mode
Observe the following precautions
when using the hybrid battery
(traction battery) charge mode
while parking.
Failure to do so may lead to death
or serious health hazard, as the
gasoline engine operates when in
the hybrid battery (traction bat-
tery) charge mode.
●Do not stop the vehicle near
flammable materials.
●Do not use the hybrid battery
(traction battery) charge mode
in a closed area where ventila-
tion is insufficient, such as in a
garage or area with snow
buildup.
Control when driving in
each mode

772-1. Plug-in hybrid system
2
Plug-in hybrid system
using only the electric motor)* is
possible. However, depending
on the situation, EV driving may
be canceled and both gasoline
engine and electric motor are
used ( P.79). Also, if a little
electricity is remaining in the
hybrid battery (traction battery),
HV mode is automatically
selected. To drive in EV mode
long, observe the followings.
 Avoid sudden acceleration
and sudden deceleration, and
be sure to drive smoothly. If
you repeatedly accelerate,
the hybrid battery (traction
battery) charge will deplete
quickly. Also, EV driving may
be canceled by rapid acceler-
ation or vehicle speed.
 Restrain your speed as much
as possible. The distance that
can be driven in EV mode will
reduce considerably at high
speeds.
*: The EV driving range can be
checked using the meter.
( P.155)
■When in AUTO EV/HV mode
Only the electric motor is used
for EV driving
* during normal
driving, but when the accelera-
tor pedal is strongly depressed,
the gasoline engine starts.
( P.79)
Also, when the hybrid battery
(traction battery) level is low, the
mode switches to HV mode automatically the same as in EV
mode.
AUTO EV/HV mode is suitable
for driving conditions when more
power is required, such as for
driving uphill or accelerating
suddenly. However, because
the gasoline engine will start
more easily, it is recommended
to drive in EV mode usually.
*: The EV driving range can be
checked using the meter.
( P.155)
■When in HV mode
The vehicle can be used in the
same way as a standard Plug-in
Hybrid Electric Vehicle
In HV mode, controls are pri-
marily carried out as follows in
accordance with the driving con-
ditions.
 The gasoline engine stops
*
when the vehicle is stopped.
 During start off, the electric
motor (traction motor) drives
the vehicle.
 During normal driving, the
gasoline engine and electric
motor (traction motor) are
controlled effectively, and the
vehicle is driven with optimum
fuel efficiency. Also, when
necessary, the electric motor
(traction motor) operates as
an electrical generator to
charge the hybrid battery
(traction battery).

782-1. Plug-in hybrid system
When the accelerator pedal is
depressed heavily, drive force
from both the gasoline engine
and the electric motor (trac-
tion motor) is used to acceler-
ate.
*: When the hybrid battery (traction
battery) requires charging or the
engine is warming up, etc., the
gasoline engine will not automati-
cally stop. ( P.79)
■When braking (regenera-
tive braking)
The electric motor (traction
motor) charges the hybrid bat-
tery (traction battery).
The EV driving range can be
extended by actively using this
regenerative braking to store
electricity in the hybrid battery
(traction battery).
Moreover, as fuel consumption
is also reduced when in HV
mode, the regenerative braking
system can be used effectively.
■Regenerative braking
●In the following situations, kinetic
energy is converted to electric
energy and deceleration force can
be obtained in conjunction with
the recharging of the hybrid bat-
tery (traction battery).
• The accelerator pedal is released while driving with the shift position
in D or B.
• The brake pedal is depressed while driving with the shift position
in D or B.
●The Regeneration Boost oper-
ates when the shift position is
shifted to B. The regenerative
braking force can be changed when the Regeneration Boost is
operating. (
P.260)
■EV driving range
●The EV driving range is displayed
on the meter. ( P.155)
●The EV driving range changes in
accordance with the charge status
of the hybrid battery (traction bat-
tery), the speed of the vehicle, etc.
●Even if there is enough charge
remaining in the hybrid battery
(traction battery), EV driving may
be canceled and both gasoline
engine and electric motor are
used depending on the situation.
( P.79)
■EV indicator
The EV indicator comes on when
the vehicle is driven using only the
electric motor (traction motor) or the
gasoline engine is stopped.
The on/off operation of the EV indi-
cator can be changed. ( P.166)
■After EV mode has switched to
HV mode due to low hybrid bat-
tery (traction battery) charge
If the hybrid battery (traction battery)
is regenerated by driving continu-
ously down a long slope, the EV
driving range etc. will be displayed
on the meter an d EV mode will be
automatically switched to.
If EV mode is not switched to even
though EV driving range is being
displayed, EV mode can be
switched to by pressing the EV/HV
mode selection switch.