2019 LEXUS LS500 engine

3095-1. Remote Touch/Display
LS500_OM_(U)_1810 5
Interior features
Touch to turn the screen off.Press the buttun to display the
home screen.
Touch to lock the Rear Multi Oper-
ation Panel.
Touch to adjust the brightness of
the screen.
Touch to display the automatic
screen transition settings screen.
(  P.309)
Touch to display the rear seat set-
tings screen.• Touch to set the seat return function
linked to the door opening opera-
tion/shift-linked rear seat reclining func-
tion ( 
P.128 ) on/off.
• For the rear seat with an ottoman (if
equipped): Touch to set the position the
seatback will move to when the seat is
occupied and the door-linked rear seat
return function operates. ( 
P.128 ) ■
Auto screen change settings
screen
Touch to turn the automatic screen
transition function on/off.
Touch to set whether the screen will
transition to the home screen or
turn off when the automatic screen
transition function operates.
Touch to set the amount of time
(10/30/60/120 seconds) the Rear
Multi Operation Panel must be idle
before the automatic screen transi-
tion function operates. When the screen is off, press the
button to turn the screen on and display
the previously disp layed screen. Press
again to display the home screen.
■
Operating the Rear Multi Operation
Panel ●
When operating the Rear Multi Opera-
tion Panel, only use the tip of a finger. The
Rear Multi Operation Panel cannot be
operated with a fingernail, pen, etc.
●
Use only one finger when operating the
Rear Multi Operation Panel. The Rear
Multi Operation Panel cannot be oper-
ated with multiple fingers.
●
When the engine swit ch is changed to
ACCESSORY or IGNITION ON mode,
if a hand object, liquid or foreign matter is
touching the Rear Multi Operation Panel, A
B
C
D
E A
B
C

314 5-3. Using the air conditioning system and defogger
LS500_OM_(U)_1810 ■
Changing the air flow mode
 P.316 ■
Switching between outside air and
recirculated air modes
Press the outside/recirculated air
mode switch. The mode changes as follows each time
the switch is pressed.
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/reci rculated 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 quickly, turn the air flow and tem-
perature 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 while. The operation time changes
according to the ambient temperature and
vehicle speed. ■
Windshield wiper de-icer (if
equipped)
 P.319 ■
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. ●
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. 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 recirc ulated air mode will
also cool the vehicle interior effectively.
●
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
●
Unlocking the vehicle using an electronic
key and turning the engine switch to
IGNITION ON mode will recall that
key’s registered air conditioning settings.

3155-3. Using the air conditio ning system and defogger
LS500_OM_(U)_1810 5
Interior features ●
When the engine 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.316) ●
Adjust the fan speed●
Turn off Eco drive mode (  P.289)
■
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.398 ■
Customization
Some functions can be customized.
(  P.466)
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.

316 5-3. Using the air conditioning system and defogger
LS500_OM_(U)_1810 ■
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 (if equipped)
: 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.311)
“AUTO”: Set automatic mode on/off
(  P.320)
“OFF”: Turn the fan off NOTICE■
To prevent battery discharge
Do not leave the air conditioning system
on longer than necessary when the
engine is off.
Air conditioning control screen B E H
A B
C
D
E
F
G

3215-3. Using the air conditio ning system and defogger
LS500_OM_(U)_1810 5
Interior features in a rear seat when in automatic
S-FLOW mode. Depending on the set temperature, opera-
tion in S-FLOW mode may not change as
described above.
When certain conditions are met and pri-
ority is given to the driver’s seat only, the
temperature indicator for the front passen-
ger side will turn off.
How the system judges if a passenger is in
the vehicle: P.321
The following S-FLOW modes are
available: 
Automatic S-FLOW mode
In this mode, when a passenger is
judged to be in a rear seat, S-FLOW
mode will be automatically disabled.
(  P.321)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.
How the system judges if a passenger is in
the vehicle: P.321 
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.
In manual S-FLOW mode, as the system
does not judge if a pa ssenger is in a rear
seat.
If the rear air conditioning control screen
on the Rear Multi Operation Panel (if
equipped) is operated , S-FLOW mode will automatically be disabled ■
How the system judges if a passenger is
in the vehicle when in S-FLOW mode
In S-FLOW mode, the system judges if a
passenger is in the vehicle as follows: ●
Front passenger seat: A passenger is
judged to be in the front passenger seat
when the system detect s an object on the
front passenger seat, fastening of the
front passenger seat belt, changing of the
set temperature for the front passenger
seat, changing of the air outlets for the
front passenger seat or the opening and
closing of the front passenger door.
(However, when only opening and clos-
ing of the front passenger door is
detected, the system will judge that a pas-
senger is not in the front passenger seat
after the vehicle speed reaches approxi-
mately 12 mph (20 km/h) or more.) ●
Rear seats: A passenger is judged to be in
a rear seat when th e system detects the
opening and closing of a rear door (auto-
matic S-FLOW mode only) or the opera-
tion of the rear air conditioning control
screen on the Rear Multi Operation
Panel. ■
Operation of automatic S-FLOW mode
When the system is operating in automatic
S-FLOW mode, if the system detects the
opening and closing of a rear door or the
operation of the rear air conditioning con-
trol screen on the Rear Multi Operation
Panel, S-FLOW mode will be disabled. To
enable S-FLOW mode, select the S-FLOW
mode switch. (In this case, the system will
operate in manual S-FLOW mode.)
■
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 engine switch off.
3 After 60 minutes have elapsed, change
the engine switch to ON mode.

326 5-3. Using the air conditioning system and defogger
LS500_OM_(U)_1810 Adjust the temperature setting of each
rear seat using the Center Display or Rear
Multi Operation Panel.
 Adjust the temperature setting of
each rear seat using the Center Dis-
play (rear air conditioning control
screen) or Rear Multi Operation
Panel. The temperature setting of each rear seat
can be changed independently.
■
Rear center outlets and rear side
outlets
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
vent *
: If equipped
Air outlet layout and operations
NOTICE
■
To prevent battery discharge
Do not leave the air conditioning system
on longer than necessary when the
engine is off. Heated steering wheel *
/seat
heaters *
/seat ventilators *
 Heated steering wheel
Warms up the grip of the steering
wheel
 Front seat heaters/Rear seat
heaters
Warm up the seat upholstery
 Front seat ventilators/Rear seat
ventilators
Maintain good ventilation by pulling
air through the seat upholstery
The Center Display and Rear Multi
Operation Panel/rear control
panel can be used to operate the
heated steering wheel, seat heaters
and seat ventilators as follows:

3275-3. Using the air conditio ning system and defogger
LS500_OM_(U)_1810 5
Interior features ■
Center Display 
Main 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 touchpad sur-
face. The item can be adjusted by the amount
that you trace.
Trace operation cannot be used while driv-
ing. Center Display
Press the “MENU” button on the
Remote Touch to display the main
menu and move the cursor to to
display the shortcut buttons. Then,
select to display the heated
steering wheel/front seat
heater/front seat ventilator control
screen.
To display the rear seat heater/rear
seat ventilator control screen, select
. (if equipped)
 Rear Multi Operation Panel
Touch “Climate” on the home screen
to display the air conditioning con-
trol screen.(  P.308)
Touching the shortcut button on the
home screen will display operation
buttons for the rear seat heaters and
rear seat ventilators.
 Rear control panel
The rear seat heaters can be oper-
ated. 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 phys ically 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 (n eedles, nails, etc.)
into the seat. ■
To prevent battery discharge
Do not use the functions when the
engine is off.
Control screen
A C

3295-3. Using the air conditio ning system and defogger
LS500_OM_(U)_1810 5
Interior features ■
Rear Multi Operation Panel (if
equipped) 
Rear air conditioning control screen
Adjust the rear seat heater tem-
perature levelEach time the switch is selected, the tem-
perature level and leve l indicator (orange)
change as follows:
AUTO  Hi  Mid  Lo  OFF
Adjust the rear seat ventilator fan
speed levelEach time the switch is selected, the fan
speed level and leve l indicator (blue)
change as follows:
AUTO  Hi  Mid  Lo  OFF
Shortcut screen
Adjust the rear seat heater tem-
perature levelEach time the switch is selected, the tem-
perature level and leve l indicator (orange)
change as follows:
AUTO  Hi  Mid  Lo  OFF Adjust the rear 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■
Rear control panel (if equipped)
Increases the rear seat heater tem-
perature level The seat ventilator can be adjusted in 3 lev-
els. (Low, Mid or Hi)
Enables/Disables the automatic
mode of the rear seat heaters
Decreases the rear seat heater
temperature level If this switch is select ed when the rear seat
heater temperature level is set to Lo, the
rear seat heater will turn 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 ventilato r fan speed becomes
higher according to the fan speed of the air
conditioning system.
■
When the air conditioning system is
operating in S-FLOW mode
If a passenger is not detected in the front A
B
A B
A
B
C