LEXUS UX250H 2019 Owners Manual

2815-3. Using the air conditioning system and defogger
5
Interior features
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.283)
Select the air flow mode
■Windshield wiper de-icer (if equipped)
This feature is used to prevent ice from
building up on the wi ndshield and wiper
blades.
The windshield wiper de-icer will automati-
cally turn off after a period of time.
■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 driving mode other than Eco drive
mode is selected, eco air conditioning
mode may turn off.
1Press the automatic mode switch or
select “AUTO” on the sub function
menu. ( P.279)
2
Adjust the temperature setting.
3
To stop the operation, press the off
switch or select “Off” on the sub
function menu.
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 condit ioning system to pre-
vent fog.
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.
B
C
D
E
F
G
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 the glass cleaner on the
sensor or subject it to strong impacts

2825-3. Using the air conditioning system and defogger
In S-FLOW mode, priority for the air-
flow is given to the front seats, reducing
the airflow and air conditioning effect
on the rear seats.
The following S-FLOW modes are
available:
Automatic S-FLOW mode
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 ( P.280).
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.
The system does not determine whether a
passenger is in the rear seats by the open-
ing and closing of a rear door, so S-FLOW mode cannot be automatically disabled.
To automatically disable S-FLOW mode by
opening and closing a rear door, switch to
automatic S-FLOW mode.
■S-FLOW air conditioning control
Operation of S-FLOW mode changes
according to the following conditions.
However, depending on the set tem-
perature and air conditioning load is
high, the operation may not change.
 Driver seat priority:
• When the system determines there is no
passenger in the front passenger seat in
manual S-FLOW mode
• When the system determines there are no passengers in the front passenger
seat and rear seats in automatic S-
FLOW mode
The airflow to the front passenger seat and
rear seat stops and the front passenger
temperature display turns off.
 Front seat priority:
When the system determines there are no
passengers in the rear seats
S-FLOW disabled:
When the system determines there is a
passenger in the rear seats
■Passenger presence determination in S-
FLOW mode
The system determines that there is a pas-
senger in any of the following situations.
If a passenger is judged to be in the vehicle,
the system will retain the judgment for a
certain amount of time after the power
switch is turned off.
NOTICE
●Do not stick anything on the sensor
S-FLOW mode

2835-3. Using the air conditioning system and defogger
5
Interior features
Front passenger seat
• When the front passenger’s door is opened and closed
• When a passenger is sitting on the front passenger seat
• When the front passenger side seat belt
is fastened
• When the front passenger seat set tem- perature is changed
After only the front passenger side door is
opened and closed, when the vehicle is
driven at 20 km/h (12 mph) or more, the
system determines that there is no passen-
ger in the front passenger seat.
Rear seats
When a rear door is opened and closed
■Operation of automatic S-FLOW mode
When the system is operating in S-FLOW
mode, if a rear door is opened and then
closed, S-FLOW mode will be disabled. To
enable S-FLOW mode, select the S-FLOW
mode switch. In this case, the system
switches to 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 power switch off.
3 After 60 minutes have elapsed, change
the power switch to ON.
To turn on the “DUAL” mode, perform
any of the following procedures:
Select “DUAL” on the sub function
menu. ( P.279)
 Select “DUAL” on the option con-
trol screen.
 Adjust the front passenger’s side
temperature setting.
The indicator comes on when the “DUAL”
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
Direct air flow to the left or right, up or
down
Turn the knob to open or close the vent
Adjusting the temperature for
driver front and passenger seats
separately (“DUAL” mode)
Air outlet layout and operations

2845-3. Using the air conditioning system and defogger
1Open the outlet
2 Close the outlet
Rear
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
vent
■Certification
For vehicles sold in the U.S.A.
For vehicles sold in Canada

2855-3. Using the air conditioning system and defogger
5
Interior features
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.

2865-3. Using the air conditioning system and defogger
*: If equipped
Turns the heated steering wheel on/off
Each time the switch is pressed, the opera-
tion condition changes as follows.
AUTO (lit)  Hi (2 segments lit)  Lo (1
segment lit)  Off
The AUTO indicator and/or level indi-
cator illuminates during operation.
■The heated steering wheel can be used
when
The power switch is in ON.
■Customization
Steering wheel heating preference in auto-
matic mode can be changed. (Customiz-
able features: P.444)
Heated steering wheel*/seat
h
eaters*/seat ventilators*
 Heated steering wheel
Warms up the grip of the steering
wheel
 Seat heaters
Warm up the seat upholstery
 Seat ventilators
Maintain good airflow on the seat
upholstery by sucking air into 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.279) 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 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 hybrid
system is off.
Heated steering wheel
A
B

2875-3. Using the air conditioning system and defogger
5
Interior features
■Seat heaters
Turns the seat heaters on/off
Each time the switch is pressed, the opera-
tion condition changes as follows.
AUTO (lit)  Hi (3 segments lit)  Mid
(2 segments lit)  Lo (1 segment lit) 
Off
The AUTO indicator and/or level indi-
cator illuminates during operation.
■Seat ventilators
Turns the seat ventilators on/off
Each time the switch is pressed, the opera-
tion condition changes as follows.
AUTO (lit)  Hi (3 segments lit)  Mid
(2 segments lit)  Lo (1 segment lit) 
Off
The AUTO indicator and/or level indi-
cator illuminates during operation.
■The seat ventilators can be used when
The power switch is in ON.
■Air conditioning system-linked control
mode
When the seat ventilator fan speed level is
Hi, the seat ventilator fan speed becomes
higher according to the fan speed of the air
conditioning system.
■Customization
Settings for the seat heaters and ventilators
can be changed. (Customizable features:
 P.443)
■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
Seat heaters and ventilators
(front seats)
A
B
A
B
WARNING
■To prevent causes of 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.
Control screen
AC

2885-3. Using the air conditioning system and defogger
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 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 disp layed 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 (10. 3-inch display
model)
Display the air conditioning control
screen ( P.280)
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 le vel indicator change
A
B
C
D
E
A
B
C
D

2895-3. Using the air conditioning system and defogger
5
Interior features
as follows:
AUTO  Hi  Lo  Off

2905-4. Using the interior lights
5-4.Using the interior lights
Personal lights ( P.292)
Front interi or light (P.291)
Rear interior light ( P.291)
Footwell lights
• When the power switch is in ON, the footwell lights will turn on.
However, if the instrume nt panel light control switch is turned to minimum, the footwell
lights will turn off. ( P.80, 86)
• When the shift lever is in a position other th an P, the brightness of the footwell light will
reduce intensity.
Outside door handle lights
■Personal lights automatic on/off
●Illuminated entry system: The lights auto-
matically turn on/off according to power
switch mode, the presence of the elec-
tronic 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 lights will
go off automatically after 20 minutes.
■When front interior light and personal
lights do not respond as normal
●When water, dirt, etc., have adhered to
the lens surface
●When operated with a wet hand
●When wearing gloves, etc.
Interior lights list
Location of the interior lights
A
B
C
D
E