heater TOYOTA PRIUS PRIME 2023 Owners Manual

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
5
6Interior features
7Maintenance and care

20Pictorial index
Multi-information display ..................................................P.161
Display .................................................................................P.161
Energy monitor.....................................................................P.173
When the warning messages are displayed ........................P.566
Turn signal lever ................................................................P.262
Headlight switch ................................................................P.269
Headlights/parking lights/tail lights/
license plate lights/dayti me running lights ............................P.269
Hood lock releas e lever .............................................. .......P.501
Tilt and telescopic steering rele ase lever ........................P.215
Driver monitor
*2..................................................................P.292
Shift lever............................................................................P.256
Changing the shift position...................................................P.257
Precautions against towing ..................................................P.550
Air conditioning system ............. .......................................P.434
Usage...................................................................................P.434
Rear window defogger .........................................................P.436
Seat heaters
*2......................................................................P.443
Seat ventilators
*2..................................................................P.444
*1: Refer to “MULTIMEDIA OWNER’S MANUAL”.
*2: If equipped
F
G
H
I
J
K
L

792-1. Plug-in hybrid system
2
Plug-in hybrid system
■Gasoline engine operation in
EV mode or AUTO EV/HV mode
Even if there is a sufficient amount
of electricity remain ing in the hybrid
battery (traction battery) and EV
driving range ( P.155) is being dis-
played on the meter, EV driving
(driving using only the electric
motor) may be canceled and both
gasoline engine and electric motor
are used depending on the situation
(EV driving will be returned to auto-
matically after EV driving becomes
possible again).
EV driving may be canceled auto-
matically in the following circum-
stances
*1:
●When vehicle speed is more than
approximately 84 mph (135 km/h).
●When power is needed temporar-
ily, for example when the acceler-
ator pedal is depressed firmly or
when accelerating suddenly.
*2
●When the temperature of the
hybrid system is high.
The vehicle has been left in the
sun, driven on a h ill, driven at high
speeds, etc.
●When the temperature of the
hybrid system is low.
●When the heater is switched on
when the outside temperature is
below about 14°F (-10°C).
●When the windshield defogger
switch is pressed. ( P.434)
●When the system determines that
the gasoline engine needs to be
started.
*1: The gasoline engine may also
operate in circumstances other
than those listed above, depend-
ing on conditions.
*2: When driving in AUTO EV/HV mode. Even in EV mode, the gas-
oline engine may start, depend-
ing on the condition of the hybrid
battery (traction battery).
■If “Engine Started to Protect
System EV driving unavailable”
is displayed on the multi-infor-
mation display
EV driving may be canceled in order
to protect the hybrid system, etc.
In this case, perform driving with the
gasoline engine until EV driving will
be returned to automatically.
Depending on the conditions, driv-
ing that combines the use of the
gasoline engine may continue for a
short while. However, this is not a
malfunction.
■Conditions in which the gaso-
line engine may not stop
The gasoline engine starts and
stops automatically . However, it
may not stop automatically in the
following conditions
*:
●During gasoline engine warm-up
●During hybrid battery (traction bat-
tery) charging
●When the temperature of the
hybrid battery (traction battery) is
high or low
●When the windshield defogger
switch is pressed. ( P.434)
*: Depending on the circumstances,
the gasoline engine may also not
stop automatically in situations
other than those above.
■Sounds and vibrations specific
to a Plug-in Hybrid Electric
Vehicle
Because there is no engine sound
or vibration, it is easy to mistake the
Plug-in Hybrid Electric Vehicle for
being off when it is actually still run-
ning, as indicated by the “READY”
indicator being illuminated. For
safety, make sure to always shift the
shift position to P and apply the
parking brake when parked.
The following sounds or vibrations
may occur when the hybrid system
is operating and are not a malfunc-
tion.

892-1. Plug-in hybrid system
2
Plug-in hybrid system
gently and a timely manner.
A greater amount of electrical
energy can be regenerated
when slowing down.
Repeated acceleration and
deceleration, as well as long
waits at traffic lights, will lead to
high fuel and electricity con-
sumption. Check traffic reports
before leaving and avoid delays
as much as possible. When driv-
ing in a traffic jam, gently
release the brake pedal to allow
the vehicle to move forward
slightly while avoiding overuse
of the accelerator pedal. Doing
so can help control excessive
electricity and fuel consumption.
 Control and maintain the vehi-
cle at a constant speed.
Before stopping at a toll booth
or similar, allow plenty of time
to release the accelerator and
gently apply the brakes. A
greater amount of electrical
energy can be regenerated
when slowing down.
 Electricity consumption will
increase significantly when
driving at high speeds in EV
mode or AUTO EV/HV mode.
If there will be a long distance
to the next external charging
point after leaving a freeway, it is recommended to drive in
HV mode while on the free-
way and change to EV mode
or AUTO EV/HV mode after
leaving the freeway. (
P.74)
 Turn the “A/C” switch off
when it is not needed. Doing
so can help reduce excessive
electricity and fuel consump-
tion.
In summer: When the ambient tem-
perature is high, use the recircu-
lated air mode. Doin g so will help to
reduce the burden on the air condi-
tioning system and reduce electric-
ity and fuel consumption as well.
In winter: Avoid excessive and
unnecessary use of the heater.
Usage of the heated steering wheel
(if equipped) and seat heaters (if
equipped) are effective. ( P.443)
Make sure to check the tire infla-
tion pressure frequently. If there
is improper tire inflation pres-
sure in the tires, the EV driving
range will become shorter, and
fuel consumption when in HV
mode will increase.
Also, as snow tires can cause
large amounts of friction, their
use on dry roads can lead to
increased fuel and electricity
consumption.
Delays
Highway driving
Air conditioning
Checking tire inflation
pressure

922-1. Plug-in hybrid system
■Release the accelerator
pedal early before stopping
the vehicle, such as at a
traffic light
The regenerative brake will
operate to convert the kinetic
energy of the vehicle into electri-
cal energy, which will charge the
hybrid battery (traction battery).
The regeneration status can be
checked from the Hybrid Sys-
tem Indicator. ( P.158)
When the brake pedal is
depressed lightly during decel-
eration, the regeneration
amount increases, enabling
more electrical energy to be
recovered.
If the brake pedal is depressed too
strongly, the recovered amount
indicator will reach the maximum
level and the upper limit of the
recoverable en ergy will be
exceeded. Therefore, be sure to
operate the brake pedal early.
■Use the air conditioning
system appropriately, and
also utilize the heated steer-
ing wheel (if equipped) and
seat heaters (if equipped)
In EV mode, the vehicle is
cooled and heated by electrical
energy. (Except in extremely
cold temperatures of approxi-
mately 14°F [-10°C] or less.)
Preventing excessive cooling or
heating of the vehicle will reduce
power consumption and
improve electrical efficiency. When eco air conditioning mode
is used, the air conditioning con-
trol is switched automatically to
a lower setting. (
P.437)
The heated steering wheel and
seat heaters are efficient heat-
ing device that directly warm the
body using less electric power.
When used together with the air
conditioning system, a low tem-
perature setting can be used to
improve electrical and fuel effi-
ciency.
■Check the tire pressure
If the tire pressure is lower than
the specified value, it will
worsen the electrical and fuel
efficiency.
A pressure level 7 psi (50 kPa, 0.5
kgf/cm
2 or bar) lower than the spec-
ified value will cause a worsening of
several percentage points.
■When driving on highways,
use the EV/HV mode selec-
tion switch to drive in HV
mode
The power consumption will
increase significantly if the vehi-
cle is driven in EV mode on
highways.
■Do not load unnecessary
objects in the vehicle
Driving with objects weighing
220 lb. (100 kg) in the vehicle
will worsen the electrical and
fuel efficiency by approximately
3%.
Air resistance also greatly

962-2. Charging
The illumination/flashing pattern changes to inform the user of the
charging status in the following ways.
*1: The indicator is dimmed when the charging is done
*2: Flashes for a certain period of time, and then turns off.
Charging indicator
Illumination/flashing pat-ternVehicle condition
IlluminatedCharging is in progress*1
“Battery Heater” ( P.108) is operating
Flashes normally*2When charging schedule is registered ( P.123)
and AC charging cable is connected to vehicle
Flashes rapidly*2When charging cannot be carried out due to
malfunction in a power sour ce or the vehicle etc.
(  P.141)

1072-2. Charging
2
Plug-in hybrid system
WARNING
■Power sources precautions
Observe the following precau-
tions.
If you do not follow them, fire,
electrical shock or damage may
occur, possibly resulting in death
or serious injury.
●Connect to an AC 120 V outlet
(NEMA 5-15R) with a Ground-
Fault Circuit-Interrupter (GFCI)
and supplied by a circuit
breaker per your local code.
Use of a 15A individual circuit is
strongly recommended.
●Do not connect the AC charging
cable to a multi-outlet adaptor,
multi-plugs, or conversion plug.
●Connecting the AC charging
cable to an extension cord is
strictly prohibited.
The extension cord may overheat
and does not contain a Ground-
Fault Circuit-Inte rrupter (GFCI).
The leakage detection function of
the CCID (Charging Circuit Inter-
rupting Device) ( P.99) may not
operate correctly.
●Do not connect to a branch
electrical outlet.
●Use of a block heater for
charging is prohibited.
●Make sure to connect the
charging connector and AC
charging inlet directly.
Do not connect a converting
adaptor or extension cord
between the charging connector
and AC charging inlet.

1082-2. Charging
■AC charging (P.116)
This is a charging method used
when charging from an AC out-
let with the AC charging cable or
charging that use an AC char-
ger.
By setting charging schedule, it is
also possible to charge at the
desired date and time. ( P.123)
■Using the hybrid battery
(traction battery) charge
mode ( P.75)
The plug-in hybrid system can
be switched to hybrid battery
(traction battery) charge mode
to charge the hybrid battery
(traction battery) using electricity
generated by gasoline engine
operation.
The maximum charge amount in
the hybrid battery (traction battery)
charge mode is approximately 80%
of the fully charged capacity for the
charging from an external power
source.
■Solar charging system (if
equipped) ( P.136)
In certain conditions, when the vehicle is parked, the hybrid bat-
tery (traction battery) can be
charged by using electricity gen-
erated by the solar panel
equipped to the roof of the vehi-
cle.
This vehicle is equipped with
several functions that are linked
with charging.
■“My Room Mode” (
P.134)
When the AC charging cable is
connected to the vehicle, electri-
cal components such as the air
conditioning system or audio
system can be used using the
external power source
*.
*: The power of the hybrid battery (traction battery) may be used
depending on the situation.
■“Battery Heater”
When the outside temperature
is low and the AC charging
cable is connected to the vehi-
cle, this function automatically
warms the hybrid battery (trac-
tion battery) until it reaches or
exceeds a certain temperature.
“Battery Heater” will operate
when the “Battery Heater” of the
“Charging Settings” on the multi-
information display is on.
( P.169)
 By setting charging schedule,
“Battery Heater” operates
according to the charging
Charging methods
The following methods can
be used to charge the
hybrid battery (traction bat-
tery).
Types of charging meth-
odsCharging-linked functions

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)

1142-2. Charging
Also, if the hybrid battery (traction
battery) capacity reduces, the dis-
tance that can be driven in EV mode
or AUTO EV/HV mode decreases.
However, vehicle performance does
not significantly become worse.
■When the remaining charge of
the hybrid battery (traction bat-
tery) is low after charging
In the following situations, the
remaining charge of the hybrid bat-
tery (traction battery) after charging
completes may be less than normal
in order to protect the system (the
EV driving range after the hybrid
battery [traction battery] is fully
charged may be shorter).
*
●Charging is carried out when the
outside temperature is low or high.
●Charging is carried out immedi-
ately after high-load driving or in
extreme heat.
When none of the above situations
apply and there is a drastic drop in
the remaining charge of the hybrid
battery (traction battery) after
charging completes, have the vehi-
cle inspected by your Toyota dealer.
*: When this occurs, even if the remaining charge display of the
hybrid battery (traction battery)
shows that it is fully charged, the
remaining charge rapidly
decreases faster than normal.
■When the charging amount sent
to the hybrid battery (traction
battery) decreases
When the amount of power supplied
by the charger is low or operation of
the “Battery Heater”, etc., reduces
the charging power sent to the
hybrid battery (traction battery), the
charging amount sent to the hybrid
battery (traction battery) may
decrease.
■Certification
This device complies with Part 15 of
the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harm-
ful interference, and
(2) this device must accept any
interference received, including
interference that may cause unde-
sired operation.
■Charging time may increase
In the following si tuations, charging
time may become longer than nor-
mal:
●In very hot or very cold tempera-
tures.
●When the hybrid battery (traction
battery) becomes hot, such as
immediately after high-load driv-
ing.
●The vehicle is consuming a lot of
electricity, for example, when the
headlights are on etc.
●When using “My Room Mode”.
(  P.134)
●There is a power outage during
charging.
●There is an interruption in the
electrical supply.
●There is a drop in the voltage of
external power source.
●The charge in the 12-volt battery
is low, for example due to the
vehicle being left unused for a
long period of time.
●When the upper limit of charging
current is changed in the charging
current setting of the vehicle.
( P.119)
●When the “Battery Heater” oper-
ates. ( P.108)
●When the “Battery Cooler” is oper-
ated before charging. ( P.109)
●When the plug generates heat
due to a loose outlet connection
etc.
●When the temperature of
charging-related parts is high.