Toyota Prius Prime (2020 year). Owner's manual - part 33

520

6-1. Using the air conditioning system and defogger

■

Customization
Settings (e.g. A/C auto switching operation) can be changed. (Customizable
features: 

P. 741)

WARNING

■

To prevent the windshield from fogging up

●

Do not use 

 during cool air operation in extremely humid weather. The

difference between the temperature of the outside air and that of the wind-
shield  can  cause  the  outer  surface  of  the  windshield  to  fog  up,  blocking
your vision.

■

To prevent burns
Do not touch the rear view mirror surfaces when the outside rear view mirror
defoggers are on.

●

Do not place anything on the instrument
panel  which  may  cover  the  air  outlets.
Otherwise,  air  flow  may  be  obstructed,
preventing  the  windshield  defoggers
from defogging.

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6-1. Using the air conditioning system and defogger

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NOTICE

■

Humidity sensor

●

Do not spray the glass cleaner on the sensor or subject it to strong impacts

●

Do not stick anything on the sensor

■

To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the
hybrid system is off.

■

Air outlets
The air outlets become hot when used for heating. Therefore, use caution
and adjust the air outlets accordingly.

In order to detect fog on the windshield, a
sensor  which  monitors  the  temperature
of the windshield, the surround humidity,
etc. is installed. (

P. 518)

Follow  these  points  to  avoid  damaging
the sensor:

●

Do not disassemble the sensor

522

6-1. Using the air conditioning system and defogger

Remote Air Conditioning System

If  the  Remote  Air  Conditioning  System  is  used  while  the  charging
cable is connected to the vehicle, the reduction of charge in the hybrid
battery (traction battery) will be suppressed to allow you to use elec-
tricity from an external power source.

Charging will be conducted automatically after the Remote Air Condition-
ing System is stopped.

Check the temperature setting of the air conditioning system. 
(

P. 500, 512)

The Remote Air Conditioning System will operate in accordance with the
temperature settings of the air conditioning system.

Press and hold “A/C” on the wire-
less remote control to operate the
Remote Air Conditioning System.

The system will shut off if a door is
opened.
The  system  can  be  stopped  by
pressing “A/C” twice.

The  Remote  Air  Conditioning  System  uses  electrical  energy
stored in the hybrid battery (traction battery) and allows the air
conditioning to be operated by remote control.

Before leaving the vehicle

Activating the Remote Air Conditioning System

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6-1. Using the air conditioning system and defogger

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Operating conditions
The system will only operate if all of the following conditions are met:

●

The shift position is in P.

●

The power switch is off.

*

●

All doors are closed.

●

The hood is closed.

*

: The Remote Air Conditioning System cannot be used for approximately 3

minutes and a half after the power switch is turned off.

■

Remote Air Conditioning System automatic shut-off
The system will automatically shut off under the following conditions:

●

About 10 minutes have passed since operation began

●

Any one of the operating conditions is not met

The system may also shut off if the charge level of the hybrid battery (traction
battery) drops to low.

■

Conditions affecting operation
The system may not start in the following situations:

●

The charge level of the hybrid battery (traction battery) is low

●

The outside temperature is extremely low

●

When the hybrid system is cool (for example, after being left for a long time
in low temperatures)

■

Windshield defogger
When defogging the windshield using the Remote Air Conditioning System,
defogging  may  be  insufficient  due  to  the  power  being  restricted  more  than
during normal air conditioning operation. Also, the outside of the windshield
may fog up due to the outside temperature, humidity or air conditioning set
temperature.

■

Using the heater via the Remote Air Conditioning System
When  the  outside  heat  exchanger  becomes  frosted  over,  heating  perfor-
mance may decline due to automatically switching to the frost removal opera-
tion.

524

6-1. Using the air conditioning system and defogger

■

Security feature
Any unlocked doors will be automatically locked when the system is operat-
ing. The buzzer sounds and the emergency flashers flash to indicate that the
doors have been locked or the system has been turned off.
(The doors locked: Once; The system turned off: Twice)

■

Conditions affecting operation
P. 293

■

When using the Remote Air Conditioning System
A charging message will be displayed on the multi-information display. Differ-
ent messages will be displayed depending on when the Remote Air Condi-
tioning System was started (after charging or during charging).

■

While the Remote Air Conditioning System is operating

●

Depending on the operating condition of the Remote Air Conditioning Sys-
tem, the electric fan may spin and an operating noise may be heard. How-
ever, this does not indicate a malfunction.

●

The  Remote  Air  Conditioning  System  may  stop  operating  temporarily  if
other features that use electricity (for example, the seat heater, lights, wind-
shield  wipers)  are  in operation or if  the charge level of the  12-volt  battery
becomes low.

●

The  headlights,  windshield  wiper,  combination  meter,  etc.  will  not  operate
while the Remote Air Conditioning System is operating.

■

Electronic key battery depletion
P. 276

■

When the electronic key battery is fully depleted
P. 635

■

Customization
Setting  (e.g.  Operation  using  “A/C”  on  the  wireless  remote  control)  can  be
changed. (Customizable features: 

P. 741)

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WARNING

■

Precautions for the Remote Air Conditioning System

●

Do not use the system if people are in the vehicle.
Even when the system is in use, the internal temperature may still reach a
high or low level due to features such as the automatic shut-off. Children
and pets left inside the vehicle may suffer heatstroke dehydration or hypo-
thermia or could result in death or serious injury.

●

Depending  on  the  surrounding  environment,  signals  from  the  wireless
switch  may  transmit  further  than  expected.  Pay  appropriate  attention  to
the vehicle’s surroundings and use the switch only when necessary.

●

Do not operate “A/C” if the hood is open. The air conditioning may operate
unintentionally and objects may be drawn into the electrical cooling fan.

NOTICE

■

To prevent the hybrid battery (traction battery) from being discharged
through incorrect operation
Use “A/C” only when necessary.

526

6-1. Using the air conditioning system and defogger

Heated steering wheel



/seat heaters



: If equipped

Heated steering wheel and seat heaters heat the side grips of the
steering wheel and front seats, respectively.

WARNING

●

Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the heater is on:
• Babies,  small  children,  the  elderly,  the  sick  and  the  physically  chal-

lenged

• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping

drugs, cold remedies, etc.)

●

Observe the following precautions to prevent minor burns or overheating:
• Do  not  cover  the  seat  with  a  blanket  or  cushion  when  using  the  seat

heater.

• Do not use seat heater more than necessary. 

NOTICE

●

Do not put heavy objects that have an uneven surface on the seat and do
not stick sharp objects (needles, nails, etc.) into the seat.

●

To  prevent  12-volt  battery  discharge,  do  not  use  the  functions when  the
hybrid system is off.

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6-1. Using the air conditioning system and defogger

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Turns  the  heated  steering  wheel
on/off

The  indicator  in  the  instrument
cluster comes on when the heated
steering wheel is operating.

●

The  heated  steering  wheel  can  be  used  when  the  power  switch  is  in  ON
mode.

●

The heated steering wheel will automatically turn off after about 30 minutes.

Heats the seat at low tempera-
ture (LO)
Heats the seat at high tempera-
ture (HI)

The indicator light comes on when
one side of the switch is pressed.
To stop the operation, gently press
the other side of the switch.

●

The seat heaters can be used when the power switch is in ON mode.

●

When not in use, turn off the switch. The indicator light goes off.

Heated steering wheel (if equipped)

Seat heaters

indicator

indicator

1

2

528

6-2. Using the interior lights

Interior lights list

Rear interior light (

P. 530)

Front personal/interior lights (

P. 529)

Shift lever lighting
Footwell lights (if equipped)
Front door courtesy lights

1
2
3
4
5

529

6-2. Using the interior lights

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Turns the lights off
Turns the door position on
Turns the lights on

Turns the lights on/off

Front interior light

1
2
3

Front personal lights

530

6-2. Using the interior lights

Turns  the  switch  to  the  door
position (door linked)

Operation  is  linked  with  the  front
interior light main switch. When the
switch is off, the light does not illu-
minate.

Turns the light on

●

Illuminated  entry  system: The  lights  automatically  turn  on/off  according  to
power switch mode, the presence of the electronic key, whether the doors
are locked/unlocked, and whether the doors are opened/closed.

●

If the interior lights remain on when the power switch is turned off, the light
will go off automatically after 20 minutes.

●

Settings (e.g. the time elapsed before the lights turn off) can be changed.
(Customizable features: 

P. 741)

Rear interior light

1

2

NOTICE

To prevent 12-volt battery discharge, do not leave the lights on longer than
necessary when the hybrid system is off.

531

6-3. Using the storage features

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List of storage features

Auxiliary boxes (

P. 535)

Glove box (

P. 532)

Bottle holders/door pockets 
(

P. 534)

Cup holders (

P. 533)

Seat back pockets (

P. 535)

Console box (

P. 532)

WARNING

●

Do not leave glasses, lighters or spray cans in the storage spaces, as this
may cause the following when cabin temperature becomes high:
• Glasses may be deformed by heat or cracked if they come into contact

with other stored items.

• Lighters or spray cans may explode. If they come into contact with other

stored  items,  the  lighter  may  catch  fire  or  the  spray  can  may  release
gas, causing a fire hazard.

●

When driving or when the storage compartments are not in use, keep the
lids closed.
In the event of sudden braking or sudden swerving, an accident may occur
due to an occupant being struck by an open lid or the items stored inside.

1

2

3

4

5

6

532

6-3. Using the storage features

Pull up the lever.

The glove box light turns on when the tail lights are on.

Press the knob and open the lid.

Glove box

Console box

The tray slides forward/backward and can
be removed.

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6-3. Using the storage features

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Cup holders



Front



Rear

Pull down the armrest.

WARNING

Do not place anything other than cups or beverage cans in the cup holders.
Other items may be thrown out of the holders in the event of an accident or
sudden  braking,  causing  injury.  If  possible,  cover  hot  drinks  to  prevent
burns.

534

6-3. Using the storage features

●

When storing a bottle, close the cap.

●

The bottle may not be stored depending on its size or shape.

Bottle holders/door pockets



Front doors



Rear doors

NOTICE

Put the cap on before stowing a bottle. Do not place open bottles or glass
and paper cups containing liquid in the bottle holders.
The contents may spill and glasses may break.

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6-3. Using the storage features

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Owner’s  manual  etc.  can  be
stored  in  the  left-side  seatback
pocket with the slide fastener.

Auxiliary boxes



Type A



Type B (if equipped)

Press in the lid.

The overhead console is useful for
temporarily storing small items.

Vehicles  with  the  wireless  char-
ger: 

P. 544

WARNING

Type A:
Do not store items heavier than 0.44 lb. (200 g).
Doing so may cause the auxiliary box to open and the items inside may fall
out, resulting in an accident.

Seat back pockets