heater TOYOTA PRIUS PRIME 2022 Owners Manual

TABLE OF CONTENTS4
PRIUS PRIME_OM_OM47E74U_(U)5-5. Using the driving support
systems
Toyota Safety Sense 2.0 ... 370
PCS (Pre-Collision System) ........................... 379
LTA (Lane Tracing Assist) ............................. 390
RSA (Road Sign Assist) ............................. 405
Dynamic radar cruise control with full-speed
range ............................... 409
Driving mode select switch .............................. 425
BSM (Blind Spot Monitor) ........ 427
• The Blind Spot Monitor
function ......................... 432
• The Rear Cross Traffic Alert function ................. 435
Intuitive parking assist ....... 441
Parking Support Brake function ........................... 452
S-APGS (Simple Advanced Parking
Guidance System) .......... 462
Driving assist systems....... 496
5-6. Driving tips Winter driving tips.............. 502 6-1. Using the air conditioning
system and defogger
Automatic air conditioning system (vehicles with
7-inch display) ................. 508
Automatic air conditioning system (vehicles with
11.6-inch display) ............ 520
Remote Air Conditioning System ............................ 531
Heated steering wheel/ seat heaters..................... 535
6-2. Using the interior lights Interior lights list................. 537• Front interior light .......... 538
• Front personal lights ...... 538
• Rear interior light ........... 539
6-3. Using the storage features List of storage features ...... 540• Glove box ...................... 541
• Console box .................. 541
• Cup holders ................... 542
• Bottle holders/door pockets.................. 543
• Auxiliary boxes .............. 544
• Seat back pockets ......... 544
Luggage compartment features ........................... 545
6Interior features

20Pictorial index
PRIUS PRIME_OM_OM47E74U_(U)
■Switches
Instrument cluster light control switch . . . . . . . . . . . . . . . . P. 194
S-APGS (Simple Advanced Parking Guidance System)
switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 465
VSC OFF switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 497
Automatic High Beam switch . . . . . . . . . . . . . . . . . . . . . . . . P. 352
“HUD” (Head-up display) switch
*1. . . . . . . . . . . . . . . . . . . . P. 255
Driving mode select switch . . . . . . . . . . . . . . . . . . . . . . . . . P. 425
EV/HV mode selection switch . . . . . . . . . . . . . . . . . . . . . . . . . P. 90
EV auto mode switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 90
Seat heater switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 536
Charging schedule switch . . . . . . . . . . . . . . . . . . . . . . . . . . P. 162
Window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 309
Outside rear view mirror switch . . . . . . . . . . . . . . . . . . . . . . P. 307
Door lock switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 281
Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 309
1
2
3
4
5
6
7
8
9
10
11
12
13
14

96
PRIUS PRIME_OM_OM47E74U_(U)
2-1. Plug-in hybrid system
■Gasoline engine operation in EV/EV auto mode
Even if there is a sufficient amount of electricity remaining in the hybrid bat-
tery (traction battery) and EV driving range ( P. 214, 230, 237, 254) is being
displayed on the multi-information display etc., EV driving (dr iving using only
the electric motor) may be canceled and both gasoline engine an d electric
motor are used depending on the situation (EV driving will be returned to
automatically after EV driving becomes possible again).
EV driving may be canceled automatically in the following circu mstances:
● When vehicle speed is more than approximately 84 mph (135 km/h) .
● When power is needed temporarily, for example when the accelera tor pedal
is depressed firmly or when accelerating suddenly.
*
● When the temperature of the hybrid system is high.
The vehicle has been left in the sun, driven on a hill, 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. 511, 523)
● When the system determines that the gasoline engine needs to be started.
The gasoline engine may also operate in circumstances other tha n those
listed above, depending on conditions.
*: When traveling in the EV auto mode only
■ Conditions in which the gasoline 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 battery) charging
● When the temperature of the hybrid battery (traction battery) is high or low
● When the windshield defogger switch is pressed. ( P. 511, 523)
*: Depending on the circumstances, the gasoline engine may also not stop
automatically in situations other than those above.

108
PRIUS PRIME_OM_OM47E74U_(U)
2-1. Plug-in hybrid system
◆Air conditioning
●Turn the “A/C” switch (
*1 • *2) off when it is
not needed. Doing so can help reduce excessive electricity and
fuel consumption.
In summer: When the ambient temperature is high, use the recir-
culated air mode. Doing so will help to reduce the burden on th e
air conditioning system and reduc e electricity and fuel consump-
tion as well.
In winter: Avoid excessive and unnecessary use of the heater.
Usage of the heated steering w heel (if equipped) and seat heat-
ers is effective. ( P. 5 3 5 )
● Using the Remote Air Conditioning System ( P. 531) while the
charging cable is connected to the vehicle can reduce electrici ty
consumption immediately after st arting off by operating air condi-
tioning mainly using electricity from an external power source.
● When setting the charging schedule, selecting the start time se t-
ting mode and setting “Climate Prep” to “On” can reduce electric-
ity consumption immedi ately after starting off by operating air
conditioning before c harging is completed. ( P. 158)
*1: Vehicles with 7-inch display
*2: Vehicles with 11.6-inch display
◆Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. If t here is
improper tire inflation pressur e 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 t o increased fuel and electricity consumptio n.
◆Luggage
Carrying heavy luggage will lead to poor fuel economy. Avoid carry-
ing unnecessary luggage. Installing a large roof rack will also cause
poor fuel economy.
◆Warming up before driving
Since the gasoline engine starts up and cuts out automatically,
warming up is not necessary.

PRIUS PRIME_OM_OM47E74U_(U)
1152-2. Charging
2
Plug-in hybrid system
The illumination/flashing pattern
changes to inform the user of the
charging status in the following
ways.
*: Turns off after flashing for a certain period of time.
■Charging indicator
When a system malfunction occurs while charging or using the Re mote Air
Conditioning System, the charging indicator rapidly flashes for a certain
period of time, and then turns off.
If this occurs, the next time the hybrid system is started, a m essage is dis-
played on the multi-information display. When a message is displayed, follow
the instructions displayed on the screen.
Charging indicator
Illumination/flashing patternVehicle condition
Illuminated
• Charging is in progress
• Charging is possible
• “Traction Battery Heater” ( P. 136) is operating
• “Traction Battery Cooler” ( P. 137) is operating
Flashing
(normally)
*
When charge schedule is registered ( P. 158) and
charging cable is connected to vehicle
Rapidly flashing*
When charging cannot be carried out due to mal-
function in a power source or the vehicle etc.
( P. 183)
Not illuminated
• Charging connector is not inserted into charging
inlet
• When the charging schedule ( P. 158) is on
standby
• When charging is completed

134
PRIUS PRIME_OM_OM47E74U_(U)
2-2. Charging
WARNING
■Power sources precautions
Observe the following precautions.
If you do not follow them, fire, electrical shock or damage may occur, possi-
bly 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 l ocal code.
Use of a 15A individual circuit is strongly recommended.
● Use of a block heater for charging is prohibited.
● Make sure to connect the charging connector and charging inlet directly.
Do not connect a converting adaptor or extension cord between the
charging connector and charging inlet.
● Do not connect the charging cable to a
multi-outlet adaptor, multi-plugs, or con-
version plug.
● Connecting the charging cable to an
extension cord is strictly prohibited. The
extension cord may overheat and does
not contain a Ground-Fault Circuit-Inter-
rupter (GFCI).
The leakage detection function of the
CCID (Charging Circuit Interrupting
Device) may not operate correctly.
● Do not connect to a power strip.
ITO12P109
ITO12P110

136
PRIUS PRIME_OM_OM47E74U_(U)
2-2. Charging
■Charging time may increase
In the following situations, charging time may become longer th an normal:
● In very hot or very cold temperatures.
● The vehicle is consuming a lot of electricity, for example, when the head
light switch is on etc.
● 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 th e vehicle being
left unused for a long period of time.
● The maximum charging current is set to 8A through the “Vehicle Settings”
settings. ( P. 133)
● When the “Traction Battery Heater” operates.
● When the “Traction Battery Cooler” is operated before charging. (P. 137)
● When the plug generates heat due to a loose outlet connection e tc.
■ Using a DC Charger
DC Chargers cannot be used with this vehicle.
This vehicle is equipped with sev eral functions that are linked with
charging.
■“Traction Battery Heater”
When the outside temperature is low and the charging cable is con-
nected to the vehicle, this funct ion automatically warms the hybrid
battery (traction battery) until it reaches or exceeds a certai n tem-
perature.
● When the charging cable is removed from the vehicle or remains
connected to the vehicle for approximately 3 days, the system
automatically stops.
● When the charging schedule is used ( P. 158), this function will
operate according to t he charging schedule.
Charging-linked functions

PRIUS PRIME_OM_OM47E74U_(U)
1372-2. Charging
2
Plug-in hybrid system
■Hybrid battery (traction battery) warming control (Alaska and
Canada only)
This control operates after the charging cable remains connected to
the vehicle for 3 days and “Traction Battery Heater” automatica lly
stops. It automatically insulates the hybrid battery (traction battery)
in extremely low temperatures.
● This control stops 31 days after the charging cable is connected,
even if it is still connected to t he vehicle.
● When this control operates, charging schedule settings are
ignored and charging starts.
■“Traction Battery Cooler”
When the hybrid battery (traction battery) is hot, this functio n pro-
tects it by using the vehicle air conditioning to cool it befor e
charging is carried out.
When the hybrid battery (trac-
tion battery) is above a certain
temperature and the power
switch is turned off, a check
screen is displayed on the
multi-information display that
indicates whether “Traction Bat-
tery Cooler” is implemented.
When “No” is selected, the hybrid battery (traction battery) co oling sys-
tem does not operate.

138
PRIUS PRIME_OM_OM47E74U_(U)
2-2. Charging
■“Traction Battery Heater”
●“Traction Battery Heater” may operate when charging is not bein g per-
formed.
● When “Traction Battery Heater” is operating, the charging indicator illumi-
nates.
● When “Traction Battery Heater” is operating during charging, th e charging
time may be longer than normal.
● If the outside temperature becomes high while “Traction Battery Heater” is
operating, charging may complete earlier than the “Departure” t ime set.
( P. 158)
● “Traction Battery Heater” can be turned on and off in the “Vehicle Settings”
settings on the multi-information display. ( P. 749)
● “Traction Battery Heater” may operate even when the hybrid batt ery (trac-
tion battery) is fully charged depending on the temperature of the hybrid bat-
tery (traction battery).
• The remaining charge of the hybrid battery (traction battery) decreases
when “Traction 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 sho wn
when the charging connector is removed while recharging. ( P. 186)

144
PRIUS PRIME_OM_OM47E74U_(U)
2-2. Charging
■Capacity reduction of the hybr id battery (traction battery)
The capacity of the hybrid battery (traction battery) will decline gradually
when the hybrid battery (traction battery) is in use. The rate at which it
declines will differ in accordance with environmental condition s and the way
in which the vehicle is used. Observing the following can help suppress bat-
tery capacity decline.
● Avoid parking the vehicle in areas with a high temperature unde r direct sun-
light when the hybrid battery (traction battery) is fully charged.
● Avoid accelerating and decelerating frequently and suddenly when EV driv-
ing.
● Avoid frequent driving near the top speed for EV driving. ( P. 96)
● Leave a low level of charge in the hybrid battery (traction bat tery) when
leaving the vehicle undriven for a long period of time.
After confirming that EV mode has switched to HV mode, turn the power
switch off.
● Use the charging schedule function as much as possible in order to fully
charge the hybrid battery (traction battery) immediately before starting
off. ( P. 158)
Also, if the hybrid battery (traction battery) capacity reduces , the distance that
can be driven in EV mode decreases. However, vehicle performanc e does
not significantly become worse.
■ When the remaining charge of the hybrid battery (traction battery) is low
after charging
In the following situations, the remaining charge of the hybrid battery (traction
battery) after charging completes may be less than normal in or der to protect
the system (the EV driving range after the battery is fully charged may be
shorter).
*
● Charging is carried out when the outside temperature is low or high
● Charging is carried out immediately 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 com-
pletes, have the vehicle 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 remainin g 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 oper ation of the
“Traction Battery Heater”, etc., reduces the charging power sen t to the hybrid
battery (traction battery), the charging amount sent to the hyb rid battery (trac-
tion battery) may decrease.