air condition lexus LC500 2018 Service Manual

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5-3. Using the air conditioning system
5-3.Using the air conditioning system
Automatic mode switch
Off switch
Left-hand side temperature control switch
Fan speed control switch
Outside/recirculated air mode switch
Right-hand side temperature control switch
Windshield defogger switch
Rear window and outside rear view mirror defoggers switch
Automatic air conditioning system
Air outlets and fan speed are automatically adjusted according to the tem-
perature setting.
Press the “MENU” button on the Remote Touch, then select “Climate” to dis-
play the air conditioning control screen. ( P.275)
The air conditioning system can be disp layed and operated on the side display.
The illustrations below are for left-hand drive vehicles.
The button positions and shapes will di ffer for right-hand drive vehicles.
Air conditioning controls
A
B
C
D
E
F
G
H

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5-3. Using the air conditioning system
Interior features
■Adjusting the temperature
Operate the temperature control
switch upwards to increase the tem-
perature and downwards to decrease
the temperature.
■Setting the fan speed
Operate the fan speed control switch
upwards to increase the fan speed and
downwards to decrease the fan speed.
Press the off switch to turn the fan off.
■Changing the air flow mode
 P.283
■Switching between outside air and
recirculated air modes
Operate the outside/recirculated air
mode switch upwards or downwards.
The mode changes as follows each time
the switch is operated.
automatic mode  (outside air
mode)  (recirculated air mode)
 automatic mode
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
switch to outside air mode if the recircu-
lated air mode is used. (It may switch auto-
matically.)
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 15 to 60 minutes. The operation time
changes according to the ambient tem-
perature and vehicle speed.
■Windshield wiper de-icer (if
equipped)
 P.284
■Blower customization
 P.284
■Fogging up of the windows
The windows will easily fog up when the
humidity in the vehicle is high. Turning “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.
■Outside/recirculated air mode
●When driving on dusty roads such as tun-nels or in heavy traffic, set the out-
side/recirculated air mode switch to the recirculated air mode. This is effective in preventing outside air from entering the
vehicle interior. During cooling opera- tion, setting the recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may auto-matically switch depending on the tem-

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5-3. Using the air conditioning system
perature setting or the inside temperature.
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic key and turning the engine switch switch> to IGNITION ON mode will recall that key’s registered air conditioning settings.
●When the engine switch is turned off, the current air conditioning
settings will automatically 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 entry & start system is used to unlock the passenger door.
●The doors that can recall the air condi-
tioning setting* when unlocked using the
smart entry & start system can be changed. For details, contact any autho-rized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.*: The doors that can recall the driving posi-
tion 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.242)
■When the outside temperature falls to
nearly 0°C (32°F)
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.
●When parking, the system automatically switches to fresh air intake mode to encourage better air circulation through-
out the vehicle, helping to reduce odors that occur when starting the vehicle.
■Air conditioning filter
 P.347
■Customization
Settings (e.g. A/C auto switch operation) can be changed.(Customizable features P.423)
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.

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5-3. Using the air conditioning system
Interior features
■Main control screen
Using the touchpad of the Remote
Touch, select the button on the screen.
to can be adjusted by perform-
ing the following operations.
Flick operation: Move the pointer to
the desired item and flick the touchpad
up or down.
The item can be adjusted by one level.
Trace operation: After selecting the
desired item, trace the pad surface.
The item can be adjusted by the amount
that you trace.
Trace operation cannot be used while driv-
ing.
Sub menu
Selecting the sub menu item to switch the
main screen.
: Display the air conditioning control
screen
: Display the heated steering
wheel/seat heater/seat ventilator control
screen (if equipped)
: Display the Lexus Climate Con-
cierge control screen
: Display the option control screen
Adjust the left-hand side 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-hand side tem-
perature 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.
: Set Lexus Climate Concierge
( P.278)
“AUTO”: Set automatic mode on/off
( P.285)
“Off”: Turn the fan off
“A/C”: Set cooling and dehumidification
function
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system
on longer than necessary when the engine is off.
Air conditioning control screen
BE
A
B
C
D
E
F
G

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5-3. Using the air conditioning system
“DUAL”: Adjust the temperature for driver
and passenger seats separately (“DUAL”
mode) ( P.286)
: Changing the fan speed setting
during the automatic mode operation
(Blower customization)
■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.
Set Lexus Climate Concierge
( P.278)
Adjusting the temperature for
driver and passenger seats sepa-
rately (“DUAL” mode) ( P.286)
Cooling and dehumidification func-
tion
nanoe™* system on/off
Prevent ice from building up on the
windshield and wiper blades
(Windshield wiper de-icer) (if
equipped)
Removing pollen from the air (Pol-
len removal mode)
*: nanoe™ and the nanoe™ mark are
trademarks of Panasonic Corporation.
■Side display
Display the heated steering
wheel/seat heaters/seat ventilators
control screen (if equipped)
( P.288)
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Adjust the right-hand side tem-
perature setting
Set cooling and dehumidification
function on/off
Adjust the temperature for the
driver’s and front passenger’s seats
separately (“DUAL” mode)
( P.286)
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 approximately 15 minutes.
■Blower customization
Fan speed setting during the automatic
A
B
C
D
E
F
A
B
C
D
E
F
G

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5-3. Using the air conditioning system
Interior features
mode operation can be customized.
Each time is selected, the fan speed
setting mode changes as follows.
“NORMAL”  “ECO”  “FAST” 
“NORMAL”
■Pollen removal mode
Outside air mode switches to
(recirculated air) mode. Pollen is removed
from the air and the air flows to the upper
part of the body.
Usually the system will automatically turn
off after approximately 1 to 3 minutes.
In order to prevent the windshield from fog-
ging up when the outside air is cold, the
dehumidification function may operate or
the outside/recirculated air mode may not
switch to (recirculated air) mode.
Pollen is filtered even if the pollen removal
mode is turned off.
■nanoe™ system
This vehicle incorporates a biocidal prod-
uct.
Ionised air generated by a device incorpo-
rated in the vehicle purifies the air in the
cabin by suppressing bacteria.
Active substance: Free radicals generated
in situ from ambient air or water
nanoe™ helps to provide purified air by
emitting electrically charged water parti-
cles through the front center vent on the
driver’s side
*.
●When the fan is turned on and nanoe™
on the option control screen is selected,
the nanoe™ system is activated.
●When the fan is operated in the following
conditions, system performance will be
maximized. If the following conditions are
not met, performance will be limited.
• The , or air outlets are being used.
• The front center vent on driver’s side is open.
●When nanoe™ is generated, a small
amount of ozone is emitted and may be
faintly smelled in some situations. How-
ever, this is approximately the same as the
amount that already exists in nature, such
as in forests, and it has no affect on the
human body.
●A slight noise may be heard during oper-
ation. This is not a malfunction.
*: According to temperature and humidity
conditions, fan speed and direction of the
air flow, the nanoe™ system may not
operate at full capacity.
1 Press the automatic mode switch or
select “AUTO” on the sub function
menu. ( P.283)
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.
■nanoe™ generator
Do not disassemble or repair the genera-
tor because it contains high voltage
parts. Contact any authorized Lexus
retailer or Lexus authorized repairer, or
any reliable repairer if the generator
needs repair.
NOTICE
■To prevent damage to the nanoe™
Do not insert anything into the driver’s
side vent, attach anything to it, or use
sprays around the driver’s side vent.
These things may cause the generator
not to work properly.
Using automatic mode

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5-3. Using the air conditioning system
2Press the outside/recirculated air
mode switch to switch to automatic
air intake mode.
The air conditioning system automatically
switches between outside air and recircu-
lated air modes.
3Adjust the temperature setting.
4 To stop the operation, press the off
switch or select “Off” on the sub
function menu. ( P.283)
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.
■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.
■Windshield fog detection function
When automatic mode is set, the humidity
sensor detects fog on the windshield and
controls the air conditioning system to pre-
vent fog.
■Automatic mode for air intake control
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.
To turn on the “DUAL” mode, perform
any of the following procedures:
 Select “DUAL” on the sub function
menu. ( P.283)
 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.
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 the glass cleaner on the
sensor or subject it to strong impacts
●Do not stick anything on the sensor
Adjusting the temperature for
driver and passenger seats sepa-
rately (“DUAL” mode)

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5-3. Using the air conditioning system
Interior features
■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
Center/side
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
vent
Above the glove box
1 Direct air flow to the left or right, up
or down
2 Move the knob to the most outside
position to close the vent
■If an object falls into the air outlet above
the glove box
Remove the panel inside the glove box to
take out the object. ( P.347)
Air outlet layout and operations
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.

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5-3. Using the air conditioning system
*: If equipped
■Main display
Using the touchpad of the Remote
Touch, select the button on the screen.
to can be adjusted by perform-
ing the following operations.
Flick operation: Move the pointer to
the desired item and flick the touchpad
up or down.
The item can be adjusted by one level.
Trace operation: After selecting the
desired item, trace the pad surface.
The item can be adjusted by the amount
that you trace.
Trace operation cannot be used while driv-
ing.
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 air flow on the seat
upholstery by blowing air from the
seats
Press the “MENU” button on the
Remote Touch and select “Climate”
to display the air conditioning con-
trol screen. Then, select on the
sub menu ( P.283) to display the
heated steering wheel/seat heat-
ers/seat ventilators control screen.
WARNING
■To prevent minor burn injuries
Care should be taken if anyone in the fol- lowing 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 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 and seat ventilators
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 engine is off.
Control screen
AC

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5-3. Using the air conditioning system
Interior features
Adjust the seat ventilator fan speed
level
The seat ventilator can be adjusted in 3 lev-
els.
When the seat ventilator is operated, the
fan speed level is displayed on the screen.
Adjust the seat heater temperature
level
The seat heater can be adjusted in 3 levels.
When the seat heater is operated, the tem-
perature level is displayed on the screen.
Adjust the heated steering wheel
temperature level
The heated steering wheel can be adjusted
in 2 levels.
When the heated steering wheel is oper-
ated, the temperature level is displayed on
the screen.
Automatic mode on/off indicators
When the automatic mode is on, the indi-
cator illuminates on the screen.
Sub function menu
When the sub function button on the
Remote Touch is pressed, the following
functions can be set to automatic mode.
: Left-hand side seat heater/seat
ventilator
: Heated steering wheel
: Right-hand side seat heater/seat
ventilator
■Side display
Display the air conditioning control
screen ( P.283)
Adjust the seat heater temperature
level
Each time the switch is selected, the tem-
perature level and level indicator (orange)
change as follows:
AUTO  Hi  Mid  Lo  Off
Adjust the seat ventilator fan speed
level
Each time the switch is selected, the fan
speed level and level indicator (blue)
change as follows:
AUTO  Hi  Mid  Lo  Off
Adjust the heated steering wheel
temperature level
Each time the switch is selected, the tem-
perature level and level indicator change
as follows:
AUTO  Hi  Lo  Off
■The heated steering wheel, seat heaters and seat ventilators can be used when
The engine switch

is in IGNITION ON mode .
■Air conditioning system-linked control mode
When the seat ventilator fan speed level is Hi, the seat ventilator fan speed becomes
A
B
C
D
E
A
B
C
D