Lexus RX450h L (2022 year). Manual in english — page 18

300

5-3. Using the air conditioning system and defogger

(outside air mode) modes each

time the button is pressed.
When the system is switched to automatic
mode, the air conditioning system operates
automatically.

■

Defogging the windshield

Defoggers are used to defog the wind-
shield and front side windows.
Press the windshield defogger switch.

Set the outside/recirculated air mode but-
ton to outside air mode if the recirculated
air mode is used. (It may switch automati-
cally.)
To defog the windshield and the side win-
dows early, turn the air flow and tempera-
ture up.
To return to the previous mode, press the
windshield defogger switch again when the
windshield is defogged.

■

Defogging the rear window and
outside rear view mirrors

Defoggers are used to defog the rear
window, and to remove raindrops, dew
and frost from the outside rear view
mirrors.
Press the rear window and outside rear
view mirror defoggers switch.

The defoggers will automatically turn off
after a period of time.

■

Windshield wiper de-icer (if
equipped)



P.305

■

When the outside temperature exceeds

75°F (24°C) and the air conditioning

system is on

●

In order to reduce the air conditioning

power consumption, the air conditioning

system may switch to recirculated air

mode automatically. This may also

reduce fuel consumption.

●

Recirculated air mode is selected as a

default mode when the power switch is

turned to ON mode.

●

It is possible to switch to outside air mode

at any time by pressing the outside/recir-

culated air mode switch.

■

Fogging up of the windows

The windows will easily fog up when the

humidity in the vehicle is high. Selecting

“A/C” on will dehumidify the air from the

outlets and defog the windshield effectively.

●

If you turn “A/C” off, the windows may fog

up more easily.

●

The windows may fog up if the recircu-

lated air mode is used.

■

When driving on dusty roads

Close all windows. If dust thrown up by the

vehicle is still drawn into the vehicle after

closing the windows, it is recommended

that the air intake mode be set to outside air

mode and the fan speed to any setting

except off.

■

Outside/recirculated air mode

●

Setting to the recirculated air mode tem-

porarily is recommended in preventing

dirty air from entering the vehicle interior

and helping to cool the vehicle when the

outside air temperature is high.

●

Outside/recirculated air mode may auto-

matically switch depending on the tem-

perature setting or the inside

temperature.

■

Registering air conditioning settings to

electronic keys (vehicles with driving

position memory)

●

Unlocking the vehicle using an electronic

key and turning the power switch to ON

mode will recall that key’s registered air

conditioning settings.

●

When the power switch is turned off, the

current air conditioning settings will auto-

matically be registered to the electronic

key that was used to unlock the vehicle.

●

The system may not operate correctly if

more than one electronic key is in the

vicinity or if the smart access system with

301

5-3. Using the air conditioning system and defogger

5

Interio

r fe

atures

push-button start is used to unlock a pas-

senger door.

●

The doors that can recall the air condi-

tioning setting when unlocked using the

smart access system with push-button
start can be changed.

*

For details, con-

tact your Lexus dealer.

*

: The doors that can recall the driving

position memory are changed at the
same time.

■

Operation of the air conditioning sys-

tem in Eco drive mode

In Eco drive mode, the air conditioning sys-

tem is controlled as follows to prioritize fuel

efficiency:

●

Engine speed and compressor operation

controlled to restrict heating/cooling

capacity

●

Fan speed restricted when automatic

mode is selected

To improve air conditioning performance,

perform the following operations:

●

Adjust the fan speed

●

Turn off Eco drive mode (



P.276)

■

When the outside temperature falls to

nearly 32°F (0°C)

The dehumidification function may not

operate even when “A/C” is selected.

■

Ventilation and air conditioning odors

●

To let fresh air in, set the air conditioning

system to the outside air mode.

●

During use, various odors from inside and

outside the vehicle may enter into and

accumulate in the air conditioning sys-

tem. This may then cause odor to be

emitted from the vents.

●

To reduce potential odors from occur-

ring:

• It is recommended that the air condition-

ing system be set to outside air mode

prior to turning the vehicle off.

• The start timing of the blower may be

delayed for a short period of time imme-

diately after the air conditioning system is

started in automatic mode.

■

Using the voice command system

Air conditioning system can be operated

using voice commands. For details, refer to

“NAVIGATION AND MULTIMEDIA

SYSTEM OWNER’S MANUAL”.

■

Air conditioning filter



P.383

■

Air conditioning system refrigerant

●

A label regarding the refrigerant of the

air conditioning system is attached to the

hood at the location shown in the follow-

ing illustration.

●

The meaning of each symbol on the label

are as follows:

■

Customization

Some functions can be customized.

(



P.472)

Caution

Air conditioning system

Air conditioning system
lubricant type

Requires registered tech-
nician to service air condi-
tioning system

Flammable refrigerant

302

5-3. Using the air conditioning system and defogger

■

Main control screen

Using the touchpad of the Remote
Touch, select the button on the screen.
This system can also be operated by
the touch screen.



Vehicles with DUAL-ZONE climate
control

Sub menu

Selecting the sub menu item to switch the
main screen.

: Display the air conditioning control

screen

: Display the option control screen

Adjust the left side seat tempera-
ture setting
Adjust the fan speed setting
Select the air flow mode

: Air flows to the upper body

: Air flows to the upper body and feet

: Air flows to the feet

: Air flows to the feet and the wind-

shield defogger operates

Adjust the right side seat tempera-
ture setting
Function on/off indicators

When the function is on, the indicator illu-
minates on the control screen.

Sub function menu

When the sub function button on the

WARNING

■

To prevent the windshield from fog-

ging up

Do not use the windshield defogger

switch during cool air operation in

extremely humid weather. The difference

between the temperature of the outside

air and that of the windshield can cause

the outer surface of the windshield to fog

up, blocking your vision.

■

When the outside rear view mirror

defoggers are operating

Do not touch the outside rear view mir-

ror surfaces, as they can become very

hot and burn you.

NOTICE

■

To prevent 12-volt battery discharge

Do not leave the air conditioning system

on longer than necessary when the

hybrid system is off.

■

When repairing/replacing parts of

the air conditioning system

Have repair/replacement performed by

your Lexus dealer.

When a part of the air conditioning sys-

tem, such as the evaporator, is to be

replaced, it must be replaced with a new

one.

Air conditioning control screen

A

B

C
D

E

F

G

303

5-3. Using the air conditioning system and defogger

5

Interio

r fe

atures

Remote Touch is pressed, the following
functions can be switched on and off.
“AUTO”: Set automatic mode on/off
(



P.305)

“OFF”: Turn the fan off
“A/C”: Set cooling and dehumidification
function
If the “A/C” display is turned off, the system
will blow ambient temperature air or
heated air.
“DUAL”: Adjust the temperature for driver
and passenger seats separately (“DUAL”
mode) (



P.307)

: Set eco air conditioning mode



Vehicles with 3-ZONE climate con-
trol

Sub menu

Selecting the sub menu item to switch the
main screen.

: Display the air conditioning control

screen

: Display the option control screen

Adjust the left side seat tempera-
ture setting
Adjust the fan speed setting
Select the air flow mode

: Air flows to the upper body

: Air flows to the upper body and feet

: Air flows to the feet

: Air flows to the feet and the wind-

shield defogger operates

Adjust the right side seat tempera-
ture setting
Function on/off indicators

When the function is on, the indicator illu-
minates on the control screen.

Sub function menu

When the sub function button on the
Remote Touch is pressed, the following
functions can be switched on and off.
“AUTO”: Set automatic mode on/off
(



P.305)

“OFF”: Turn the fan off
“A/C”: Set cooling and dehumidification
function
If the “A/C” display is turned off, the system
will blow ambient temperature air or
heated air.
“3-ZONE”: Adjust the temperature for the
driver, front passenger and rear passenger
seats separately (“3-ZONE” mode)
(



P.307)

: Set eco air conditioning mode

■

Option control screen

Select

on the sub menu to display

the option control screen.

The functions can be switched on and off.
When the function is on, the indicator illu-
minates on the screen.

A

B

C
D

E

F

G

304

5-3. Using the air conditioning system and defogger



Vehicles with DUAL-ZONE climate
control

Adjusting the temperature for
driver and passenger seats sepa-
rately (“DUAL” mode) (



P.307)

Set eco air conditioning mode

Air conditioning and heater output is lim-
ited to prioritize fuel economy.

Cooling and dehumidification func-
tion

If the “A/C” indicator is turned off, the sys-
tem will blow ambient temperature air or
heated air.

Select the front seat concentrated
airflow mode (S-FLOW)
(



P.306)

Prevent ice from building up on the
windshield and wiper blades
(Windshield wiper de-icer) (if
equipped)



Vehicles with 3-ZONE climate con-
trol

Adjust the temperature for driver,
passenger and rear seats sepa-
rately (“3-ZONE” mode)
(



P.307)

Set eco air conditioning mode

Air conditioning and heater output is lim-
ited to prioritize fuel economy.

Cooling and dehumidification func-
tion

If the “A/C” indicator is turned off, the sys-
tem will blow ambient temperature air or
heated air.

Select the front seat concentrated
airflow mode (S-FLOW)
(



P.306)

Prevent ice from building up on the
windshield and wiper blades
(Windshield wiper de-icer) (if
equipped)

A

B

C

D

E

A

B

C

D

E

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5-3. Using the air conditioning system and defogger

5

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■

Side display



Vehicles with DUAL-ZONE climate
control

Adjust the left side seat tempera-
ture setting
Adjust the fan speed setting
Adjust the right side seat tempera-
ture setting
Set cooling and dehumidification
function on/off
Adjusting the temperature for
driver and passenger seats sepa-
rately (“DUAL” mode) (



P.307)

Select the air flow mode



Vehicles with 3-ZONE climate con-
trol

Adjust the left side seat tempera-
ture setting
Adjust the fan speed setting

Adjust the right side seat tempera-
ture setting
Set cooling and dehumidification
function on/off
Adjust the temperature for driver,
passenger and rear seats sepa-
rately (“3-ZONE” mode)
(



P.307)

Select the air flow mode

■

Windshield wiper de-icer (if equipped)

This feature is used to prevent ice from

building up on the windshield and wiper

blades.
The windshield de-icer will automatically

turn off after a while.

1

Press the automatic mode switch or
select “AUTO” on the sub function
menu. (



P.302)

2

Press the outside/recirculated air
mode switch to switch to automatic
air intake mode. (if equipped)

The air conditioning system automatically

switches between outside air and recircu-

lated air modes.

3

Adjust the temperature setting.

4

To stop the operation, press the off
switch or select “OFF” on the sub
function menu. (



P.302)

A

B
C

D

E

F

A

B

WARNING

■

To prevent burns (vehicles with wind-

shield wiper de-icer)

Do not touch the glass at lower part of

the windshield or to the side of the front

pillars when the windshield wiper de-icer

is on.

Using automatic mode

C

D

E

F

306

5-3. Using the air conditioning system and defogger

If the fan speed setting or air flow modes

are operated, the automatic mode indica-

tor goes off. However, automatic mode for

functions other than that operated is main-

tained.

■

Using automatic mode

Fan speed is adjusted automatically accord-

ing to the temperature setting and the

ambient conditions.
Therefore, the fan may stop for a while until

warm or cool air is ready to flow immedi-

ately after the automatic mode switch is

pressed or “AUTO” is selected.
Cool air may blow around the upper body

even when the heater is on due to sunlight.

■

Automatic mode for air intake control (if

equipped)

In automatic mode, the system detects

exhaust gas and other pollutants and auto-

matically switches between outside air and

recirculated air modes.
When the dehumidification function is off,

and the fan is operating, turning automatic

mode on will activate the dehumidification

function.

This function automatically controls the
air conditioning airflow so that priority
is given to the front seats. When the
front passenger seat is not occupied,
airflow may switch to only the driver's
seat. Unnecessary air conditioning is
suppressed, contributing to increased
fuel efficiency.
Front seat concentrated airflow mode
operates in the following situations.



No passengers are detected in the
rear seats



The windshield defogger is not
operating

While operating,

illuminates.

■

Manually turning front seat con-
centrated airflow mode on/off

In front seat concentrated airflow
mode, directing airflow to the front
seats only and to all seats can be
switched via switch operation. When
the mode has been switched manually,
automatic airflow control stops operat-
ing.

NOTICE

■

Humidity sensor

In order to detect fog on the windshield,

a sensor which monitors the temperature

of the windshield, the surround humidity,

etc. is installed.
Follow these points to avoid damaging

the sensor:

●

Do not disassemble the sensor

●

Do not spray glass cleaner on the sen-

sor or subject it to strong impacts

●

Do not stick anything on the sensor

Front seat concentrated airflow
mode (S-FLOW)

307

5-3. Using the air conditioning system and defogger

5

Interio

r fe

atures

Select

on the center display

and switch the airflow.



Indicator illuminated: Airflow to the
front seats only



Indicator off: Airflow to all the seats

■

Operation of automatic airflow control

●

In order to maintain a comfortable inte-

rior, airflow may be directed to seats

without passengers immediately after the

hybrid system is started and at other

times depending on the outside tempera-

ture.

●

After the hybrid system is started, if pas-

sengers move around inside or enter/exit

the vehicle, the system cannot accurately

detect the presence of passengers and

automatic airflow control will not oper-

ate.

■

Operation of manual airflow control

Even if the function is manually switched to

directing airflow to only the front seats,

when a rear seat is occupied, it may auto-

matically direct airflow to all seats.

■

To return to automatic airflow control

1

With the indicator off, turn the power

switch off.

2

After 60 minutes or more elapse, turn

the power switch to ON.



Vehicles with DUAL-ZONE climate
control

To turn on the “DUAL” mode, perform
any of the following procedures:



Select “DUAL” on the sub function
menu. (



P.302)



Select “DUAL” on the option con-
trol screen.



Adjust the passenger’s side tem-
perature setting.

The indicator on the main control screen
comes on when the “DUAL” mode is on.



Vehicles with 3-ZONE climate con-
trol

To turn on the “3-ZONE” mode, per-
form any of the following procedures:



Select “3-ZONE” on the sub func-
tion menu. (



P.302)



Select “3-ZONE” on the option
control screen.



Adjust a passenger seat tempera-
ture setting.

The indicator on the main control screen
comes on when the “3-ZONE” mode is on.

■

Location of air outlets

The air outlets and air volume changes
according to the selected air flow
mode.

Adjusting the temperature for
the driver and passenger seats
separately

Air outlet layout and operations

308

5-3. Using the air conditioning system and defogger

■

Adjusting the position of and open-
ing and closing the air outlets



Front center

1

Direct air flow to the left or right, up
or down

2

Turn the knob to open or close the
vent



Front side

1

Direct air flow to the left or right, up
or down

2

Turn the knob to open or close the
vent



Rear

1

Direct air flow to the left or right, up
or down

2

Turn the knob to open or close the
vent

WARNING

■

To prevent the windshield defogger

from operating improperly

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.

309

5-3. Using the air conditioning system and defogger

5

Interio

r fe

atures

■

Center Display

Using the touchpad of the Remote
Touch, select the button on the screen.
This system can also be operated by
the touch screen.

Adjust the rear seats fan speed set-
ting

Select the rear seats air flow mode

: Air flows to the upper body

: Air flows to the upper body and feet

: Air flows to the feet

Adjust the rear seats temperature
setting
Function on/off indicators

When the function is on, the indicator illu-
minates on the control screen.

Sub function menu

When the sub function button on the
Remote Touch is pressed, the following
functions can be switched on and off.
“Rear off”: Turn the rear seats fan off
“Rear AUTO”: Set the rear seats automatic
mode on/off (



P.310)

: Disables operation of the rear air

conditioning system using the Rear air con-
ditioning system control panel

Rear automatic air condi-
tioning system (RX450hL)

The air outlets and fan speed are
automatically adjusted according
to the temperature setting.

The rear air conditioning system
can be operated using the Center
Display and rear air conditioning
system control panel.

Press the “MENU” button on the
Remote Touch to display the main
menu and move the cursor to

to display the climate control short-
cut buttons. Then, select

to dis-

play the rear air conditioning
control screen.

Rear air conditioning control
operation

A

B

C

D

E

310

5-3. Using the air conditioning system and defogger

■

Rear air conditioning system control panel

Adjust the rear seats fan speed setting

Press

to increase the fan speed and

to decrease the fan speed.

Press the OFF switch to turn the fan off.

Adjust the rear seats temperature setting

Press

to increase the temperature and

to decrease the temperature.

Select the air flow mode
OFF switch
AUTO button

When the function is on, the indicator illuminates on the control screen.



Center Display

1

Select “Rear AUTO” on the sub
function menu. (



P.309)

2

To stop the operation, select “Rear
off” on the sub function menu.
(



P.309)

If the fan speed setting or air flow
modes are operated, the automatic
mode indicator goes off. However,
automatic mode for functions other

than that operated is maintained.



Rear air conditioning system control
panel

1

Press “AUTO” on the rear air con-
ditioning system control panel.

2

To stop the operation, select “OFF”
on the rear air conditioning system
control panel.

If the fan speed setting or air flow
modes are operated, the automatic
mode indicator goes off. However,
automatic mode for functions other

A

B

C
D

E

Using automatic mode

311

5-3. Using the air conditioning system and defogger

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than that operated is maintained.

■

Using automatic mode

Fan speed is adjusted automatically accord-

ing to the temperature setting and the

ambient conditions.
Therefore, the fan may stop for a while until

warm or cool air is ready to flow immedi-

ately after “Rear AUTO” is selected or

“AUTO” is touched.
Cool air may blow around the upper body

even when the heater is on due to sunlight.

The temperature setting of the rear
seats can be adjusted using the follow-
ing methods:



When the “3-ZONE” indicator is
off: Adjust the driver’s seat tempera-
ture.

Adjust the temperature setting of each
rear seat using the Center Display or rear
air conditioning system control panel.



Adjust the temperature setting of
rear seats using the Center Display
(rear air conditioning control
screen) or rear air conditioning sys-
tem control panel.

■

Location of air outlets

The air outlets and air volume changes
according to the selected air flow
mode.

■

Adjusting the position of and open-
ing and closing the air outlets

Adjusting the position of and opening
and closing the air outlets

1

Direct air flow to the left or right, up
or down

2

Turn the knob fully to the back of
the vehicle to close the vent

Adjusting the temperature set-
ting of the rear seats

Air outlets

NOTICE

■

To prevent 12-volt battery discharge

Do not leave the air conditioning system

on longer than necessary when the

hybrid system is off.

312

5-3. Using the air conditioning system and defogger

*

: If equipped

Turns the heated steering wheel on/off

The indicator light comes on when the
heated steering wheel is operating.

■

Operation condition

The power switch is in ON mode.

■

Timer function

The heated steering wheel will automati-

cally turn off after about 30 minutes.

■

Front seats



Vehicles without seat ventilators

Each time the switch is pressed, the
operation condition changes as fol-
lows.
Hi (3 segments lit)



Mid (2 segments

lit)



Lo (1 segment lit)



Off

The level indicator (amber)

lights up

during operation.

Heated steering wheel

*

/seat

heaters

*

/seat ventilators

*



Heated steering wheel

Warms up the grip of the steering
wheel



Seat heaters

Warm up the seat upholstery



Seat ventilators

Maintain good ventilation using a fan
built into the seat

WARNING

■

To prevent minor burn injuries

Care should be taken if anyone in the fol-

lowing categories comes in contact with

the steering wheel or seats when the

heater is on:

●

Babies, small children, the elderly, the

sick and the physically challenged

●

Persons with sensitive skin

●

Persons who are fatigued

●

Persons who have taken alcohol or

drugs that induce sleep (sleeping

drugs, cold remedies, etc.)

NOTICE

■

To prevent damage to the seat heat-

ers

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.

Heated steering wheel

Seat heaters

A

313

5-3. Using the air conditioning system and defogger

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

Vehicles with seat ventilators

When any switch is pressed, the system
is set to automatic mode and the
“AUTO” indicator (green) lights up.
Each time the switch is pressed, the
operation condition changes as fol-
lows.
Hi (3 segments lit)



Mid (2 segments

lit)



Lo (1 segment lit)



Off

The level indicator (amber)

lights up

during operation.

■

Second-row seats

Each time the switch is pressed, the
operation condition changes as fol-
lows.
Hi (3 segments lit)



Mid (2 segments

lit)



Lo (1 segment lit)



Off

The level indicator (amber)

lights up

during operation.

■

Operation condition

The power switch is in ON mode.

■

When the air conditioning system is

operating in front seat concentrated air-

flow mode (S-FLOW)

If a passenger is not detected in the front

passenger seat, the seat heater of the front

passenger’s seat will be turned off if on.

(



P.306)

■

Customization

Some functions can be customized.

(



P.472)

When any switch is pressed, the system
is set to automatic mode and the
“AUTO” indicator (green) lights up.
Each time the switch is pressed, the
operation condition changes as fol-
lows.
Hi (3 segments lit)



Mid (2 segments

A

B

A

WARNING

■

To prevent overheating and minor

burn injuries

Observe the following precautions when

using the seat heaters.

●

Do not cover the seat with a blanket or

cushion when using the seat heater.

●

Do not use seat heater more than nec-

essary.

Seat ventilators (front seats)

A

314

5-3. Using the air conditioning system and defogger

lit)



Lo (1 segment lit)



Off

The level indicator (green)

lights up

during operation.

■

Operation condition

The power switch is in ON mode.

■

When the air conditioning system is

operating in front seat concentrated air-

flow mode (S-FLOW)

If a passenger is not detected in the front

passenger seat, the seat ventilator of the

front passenger’s seat will be turned off if

on. (



P.306)

■

Customization

Some functions can be customized.

(



P.472)

B

315

5-4. Using the interior lights

5

Interio

r fe

atures

5-4.Using the interior lights

Outer foot lights
Instrument panel ornament light (if equipped)
Shift lever light
Front interior light (



P.315)

Front personal lights (



P.316)

Door trim ornament lights (if equipped)
Rear interior light (



P.315)

Rear personal lights (



P.316)

Door courtesy lights
Footwell lights
Scuff lights (if equipped)
Front center console light

■

Front interior light

Turns the lights on/off (touch the light)

Interior lights list

Location of the interior lights

A
B
C
D

E
F

G

H

I

J

K

L

Operating the interior lights