air condition LEXUS LS500H 2018 Owner's Guide

3255-3. Using the air conditio ning system and defogger
LS500h_OM_OM50F42U_(U) 5
Interior features ●
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 electr onic key is in the
vicinity or if the smart access system with
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, contact
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 restri ct heating/cooling
capacity●
Fan speed restricted when automatic
mode is selected
To improve air condit ioning performance,
perform the following operations: ●
Turn off eco air conditioning mode
( → P.326) ●
Adjust the fan speed●
Turn off Eco drive mode ( → P.298)
■
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 pe riod of time imme-
diately after the air conditioning system is
started in automatic mode or with the
micro dust and pollen filter on. ●
When parking, the system automatically
switches to outside air mode to encour-
age better air circulation throughout the
vehicle, helping to reduce odors that
occur when starting the vehicle. ■
Using the voice command system
Air conditioning system can be operated
using voice commands. For details, refer to
the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”. ■
Air conditioning filter
→ P.411 ■
Customization
Some functions can be customized.
( → P.481)
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.

326 5-3. Using the air conditioning system and defogger
LS500h_OM_OM50F42U_(U) ■
Main control screen
Using the touchpad of the Remote
Touch, select the button on the screen.
to and can be adjusted by
performing 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. 
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 heated steering
wheel/front seat heater /front seat ventila-
tor control screen
: Display the rear seat heater/rear seat
ventilator control screen (if equipped)
: Display the Lexus Climate Con-
cierge 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.
: Set Lexus Climate Concierge
( → P.321)
“AUTO”: Set automatic mode on/off
( → P.330)
“OFF”: Turn the fan off NOTICE■
To prevent 12-volt battery discharge
Do not leave the air conditioning system
on longer than necessary when the
hybrid system is off.
Air conditioning control screen B E H
A B
C
D
E
F
G

3275-3. Using the air conditio ning system and defogger
LS500h_OM_OM50F42U_(U) 5
Interior features “A/C”: Set cooling and dehumidification
function
“DUAL”: Adjust the temperature for driver
and passenger seats separately (“DUAL”
mode) ( → P.331)
: Set eco air conditioning mode
Vehicles with 4-ZONE climate con-
trol
Sub menu Selecting the sub menu item to switch the
main screen.
: Display the front air conditioning
control screen
: Display the heated steering
wheel/front seat heater/front seat ventila-
tor control screen
: Display the rear air conditioning con-
trol screen
: Display the rear seat heater/rear seat
ventilator control screen
: Display the Lexus Climate Con-
cierge control screen
: Display the option control screen
Adjust the left side seat tempera-
ture setting
Select the right side seat 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
Select the left side seat air flow
mode
Adjust the fan speed 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.321)
“AUTO”: Set automatic mode on/off
( → P.330)
“OFF”: Turn the fan off
“A/C”: Set cooling and dehumidification
function
“4-ZONE”: Adjust the temperature for the
driver, front passenger and left and right
rear passenger se ats separately
(“4-ZONE” mode) ( → P.331)
: Set eco air conditioning mode
Adjust the right side seat tempera-
ture setting ■
Option control screen
Select on the sub menu to display
the option control screen.
The functions can be switched on and off.A
B
C D
E
F
G
H

328 5-3. Using the air conditioning system and defogger
LS500h_OM_OM50F42U_(U) When the function is on, the indicator illu-
minates on the screen. 
Vehicles with DUAL-ZONE climate
control
Set Lexus Climate Concierge
( → P.321)
Adjusting the temperature for
driver and passenger seats sepa-
rately (“DUAL” mode) ( → P.331)
Set eco air conditioning modeAir conditioning and heater output is lim-
ited to prioritize fuel economy.
Cooling and dehumidification func-
tion
Select the S-FLOW mode
( → P.330)
Prevent ice from building up on the
windshield and wiper blades
(Windshield wiper de-icer) (if
equipped)
Removing pollen from the air
(Micro dust and pollen filter) 
Vehicles with 4-ZONE climate con-
trol
Set Lexus Climate Concierge
( → P.321)
Adjust the temperature for driver,
passenger and rear seats sepa-
rately (“4-ZONE” mode) ( → P.331)
Set eco air conditioning mode Air conditioning and heater output is lim-
ited to prioritize fuel economy.
Cooling and dehumidification func-
tion
Select the S-FLOW mode
( → P.330)
Prevent ice from building up on the
windshield and wiper blades
(Windshield wiper de-icer) (if
equipped)
Removing pollen from the air
(Micro dust and pollen filter) A
B
C
D
E
F
G A
B
C
D
E
F
G

3295-3. Using the air conditio ning system and defogger
LS500h_OM_OM50F42U_(U) 5
Interior features ■
Side display 
Vehicles with DUAL-ZONE climate
control
Display the front seat heaters/front
seat ventilators control screen
( → P.337)
Adjust the left-hand front seat side
temperature 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.331)
Select the air flow mode 
Vehicles with 4-ZONE climate con-
trol
Display the front seat heaters/front seat ventilators control screen
( → P.337)
Adjust the left-hand front seat side
temperature setting
Adjust the fan speed setting
Adjust the right side seat tempera-
ture setting
Select the left side seat air flow
mode
Set cooling and dehumidification
function on/off
Adjust the temperature for driver,
passenger and rear seats sepa-
rately (“4-ZONE” mode) ( → P.331)
Select the right side seat 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. ■
Eco air conditioning mode
When Eco drive mode is selected using the
driving mode select switch, eco air condi-
tioning mode turns on.
When a drive mode other than Eco drive
mode is selected, eco air conditioning
mode may turn off.
■
Micro dust and pollen filter
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 a while.
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 A
B
C
D
E
F
G
A B
C
D
E
F
G
H

330 5-3. Using the air conditioning system and defogger
LS500h_OM_OM50F42U_(U) switch to (recirculated air) mode.
Pollen is filtered even if the micro dust and
pollen filter is turned off.
1 Press the automatic mode switch or
select “AUTO” on the sub function
menu. ( → P.326)
2 Press 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.
3 Adjust the temperature setting.
4 To stop the operation, press the off
switch or select “OFF” on the sub
function menu. ( → P.326)If the fan speed settin g or air flow modes
are operated, the automatic mode indica-
tor goes off. However, automatic mode for
functions other than th at 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. ■
Windshield fog detection function
When automatic mode is set, the humidity
sensor detects fog on the windshield and
controls the air condit ioning 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.
In S-FLOW mode, priority for the air-
flow is given to the front seats, reducing
the airflow and air co nditioning effect
on the rear seats.
The system determines whether or not 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 wind shield wiper de-icer
is on.
Using automatic mode 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
S-FLOW mode

3315-3. Using the air conditio ning system and defogger
LS500h_OM_OM50F42U_(U) 5
Interior features a front passenger is in the vehicle by
the opening and closing of the front
passenger’s door.
When a front passenger is determined
not to be in the vehicle, the tempera-
ture indicator and air flow indicator for
the front passenger side will turn off. In
this case, depending on the set tem-
perature and ambient temperature,
priority for the airflow will be given to
the driver’s seat only.
The following S-FLOW modes are
available: 
Automatic S-FLOW mode
In this mode, the system determines
whether or not a rear passenger is in
the vehicle by the opening and closing
of a rear door. When a rear passenger
is determined to be in the vehicle,
S-FLOW mode will be automatically
disabled. The indicator will illuminate on the air con-
ditioning control screen when S-FLOW
mode is enabled.
To enable/disable S-FLOW mode and
enter manual S-FLOW mode, select the
S-FLOW mode switch. 
Manual S-FLOW mode
When the S-FLOW mode switch is
selected, S-FLOW mode will be manu-
ally enabled/ disabled. The indicator will illuminate on the air con-
ditioning control screen when S-FLOW
mode is enabled.
■
Operation of the air conditioning sys-
tem in S-FLOW mode
If the front passenger’s door or a rear door
is opened then closed, the air conditioning system determines that a passenger is in the
vehicle. In this case, priority for the airflow
will be changed from the driver’s seat only
to the front seats only or all seats, respec-
tively.
(Depending on the set temperature or
ambient temperature, priority for the air-
flow may not be given to the driver’s seat
only.)
If a passenger is judged to be in the vehicle,
the system will retain the judgement for a
certain amount of time after the power
switch is turned off. ■
Operation of automatic S-FLOW mode
When the system is operating in automatic
S-FLOW mode, if a rear door is opened
and then closed, S-FLOW mode will be dis-
abled. To enable S-FL OW mode, select the
S-FLOW mode switch. ■
Changing from manual S-FLOW mode
to automatic S-FLOW mode
1 Select the S-FLOW mode switch to dis-
able S-FLOW mode.
2 Turn the power switch off.
3 After 60 minutes have elapsed, change
the power switch to ON mode. 
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.326)
 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. Adjusting the temperature for
the driver and passenger seats
separately

332 5-3. Using the air conditioning system and defogger
LS500h_OM_OM50F42U_(U) 
Vehicles with 4-ZONE climate con-
trol
To turn on the “4-ZONE” mode, per-
form any of the following procedures:
 Select “4-ZONE” on the sub func-
tion menu. ( → P.326)
 Select “4-ZONE” on the option
control screen.
 Adjust a passenger seat tempera-
ture setting. The indicator on the main control screen
comes on when the “4-ZONE” mode is on.
■
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 
Front center/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 center/rear side
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
ventAir outlet layout and operations

3335-3. Using the air conditio ning system and defogger
LS500h_OM_OM50F42U_(U) 5
Interior features *
: If equipped
■
Center Display
Using the touchpad of the Remote
Touch, select the button on the screen.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.
Rear air conditioning sys-
tem *
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 Multi Operation
Panel.
 Center Display Press the “MENU” button on the
Remote Touch to display the main menu
and move the cursor to to display
the climate control shortcut buttons.
Then, select
to display the rear air
conditioning control screen.
 Rear Multi Operation Panel *
Touch “Climate” on the home screen to
display the rear air conditioning control
screen.( →
P.318 )
Touching the shortc ut button on the
home screen will also display operation
buttons for some of the rear air condi-
tioning system functions. *
: The Rear Multi Op eration Panel can-
not be used to operate the rear air
conditioning system if the function is
disabled. ( → P.333)
Rear air conditioning control
screen

334 5-3. Using the air conditioning system and defogger
LS500h_OM_OM50F42U_(U) 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.
Adjust the left side rear seat tem-
perature setting
Select the left side rear seat 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 fan speed set-
ting
Select the right side rear seat air
flow mode
Adjust the right side rear seat 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.
“Rear off”: Turn the rear seats fan off
“Rear AUTO”: Set the rear seats automatic
mode on/off ( → P.335)
: Disables operation of the rear air
conditioning system using the Rear Multi
Operation Panel ■
Rear Multi Operation Panel *
Various functions can be operated by
touching the displayed buttons on the
Rear Multi Operation Panel. *
: The Rear Multi Op eration Panel cannot
be used to operate the rear air condi-
tioning system if the function is disabled.
( → P.333) 
Rear air conditioning control screen
Adjust the left side rear seat tem-
perature setting
Select the left side rear seat air flow
mode : Air flows to the upper body
: Air flows to the upper body and feet
: Air flows to the feetA E
A
B
C
D
E
F G
A
B