2019 LEXUS NX300H air conditioning

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LEXUS NX300h Owners Manu-
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Interior features
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.
■Air conditioning filter
 P.348
■Customization
Settings (e.g. A/C automatic mode switch
operation) can be changed.
(Customizable features:  P. 421)
■Main control screen
Using the touchpad of the Remote
Touch ( P.262), 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, slide your finger up or
down.
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 option control screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
WARNING
■To prevent the windshield from fog-
ging up
Do not use the front 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.
■To prevent burns
●Do not touch the rear view mirror sur-
faces when the outside rear view mir-
ror defoggers are on.
●Vehicles with windshield wiper de-
icer: Do not touch the glass at lower
part of the windshield or to the side of
the front pillars wh en the windshield
wiper de-icer is on.
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
BE
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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 button on the Remote
Touch is pressed, the following functions
can be switched on and off.
“AUTO”: Set automatic mode on/off
(  P.271)
“OFF”: Turn the fan off
“A/C”: Set cooling and dehumidification
function
“DUAL”: Adjust the temperature for driver
and passenger seats separately (“DUAL”
mode) ( P.272)
: 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.
Adjusting the temperature for
driver and passenger seats sepa-
rately (“DUAL” mode) ( P.272)
Set eco air conditioning mode
Air conditioning and heater output is lim-
ited to prioritize fuel economy.
Cooling and dehumidification func-
tion
Select S-FLOW mode ( P.271)
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)
■Side display (Vehicles with naviga-
tion system)
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
D
E
F
G
A
B
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2715-2. Using the air conditioning system and defogger
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Interior features
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.272)
Select the air flow mode
■Fogging up of the windows
●The windows will easily fog up when the
humidity in the vehicle is high. Pressing
“A/C” button or selecting “A/C” 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.
■Windshield wiper de-icer (if equipped)
This feature is used to prevent ice from
building up on the wi ndshield and wiper
blades.
Select on the option control screen.
When the windshield wiper de-icer on,
is displayed on the air conditioning
control screen.
The windshield wiper de-icer will automati-
cally turn off after a period of time.
■Eco air conditioning mode
When Eco mode is selected using the driv-
ing mode select switch, eco air conditioning
mode turns on. When a drive mode other
than Eco mode is selected, eco air condi-
tioning mode may turn off.
■S-FLOW mode
Priority for airflow is given to the front seats,
and the airflow and air conditioning for the
rear seats is effectively controlled.
Select on the option control screen.
The indicator comes on when S-FLOW
mode is on. Select again to return to the previ-
ous mode.
■Micro dust and pollen filter
Pollen is removed from the air and the air
flows to the upper part of the body.
Select on the option control screen.
When the micro dust and pollen filter is on, is displayed on the air conditioning
control screen.
In order to prevent the windshield from fog-
ging up when the outside air is cold, the
dehumidification function may operate.
The pollens are filtered out even if the micro
dust and pollen filter is turned off.
1 Press the “AUTO” button.
2 Adjust the temperature setting.
3 To stop the operation, press the
“OFF” button.
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 “AUTO” button is pressed or
“AUTO” is selected.
C
D
E
F
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

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■Windshield fog detection function
When automatic mode is set, the humidity
sensor ( P.272) detects fog on the wind-
shield and controls the air conditioning sys-
tem to prevent fog.
■Air conditioning filter
 P.348
■Customization
Settings (e.g. A/C automatic mode switch
operation) can be changed.
(Customizable features:  P.421)
To turn on the “DUAL” mode, perform
any of the following procedures:
Press the “DUAL” button.
 Select “DUAL” on the option con-
trol screen. 
Adjust the temperature setting of
the passenger side with the passen-
ger side temperature adjustment
button.
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
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
vent
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 disassemb le 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)
Air outlet layout and operations

2735-2. Using the air conditioning system and defogger
LEXUS NX300h Owners Manu-
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Interior features
Rear
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
vent
*: If equipped
WARNING
■To not interrupt the windshield defog-
ger from operating
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.
Heated steering wheel*/seat
heaters*/seat ventilators*
 Heated steering wheel
Warm up the grip of the steering wheel
Seat heaters
Warm up the seat upholstery
Seat ventilators
Maintain good airflow on the seat uphol-
stery by blowing air from the seats
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 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.

2745-2. Using the air conditioning system and defogger
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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
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) light up
during operation.
Vehicles with 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 indicator (amber) and level indicator
(green) light up during operation.
■Rear
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
A
A
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2755-2. Using the air conditioning system and defogger
LEXUS NX300h Owners Manu-
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Interior features
■Operation condition
The seat heaters can be used when the
power switch is in ON mode.
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 indicator (green) and level indicator
(green) light up during operation.
■Operation condition
The power switch is in ON mode.
WARNING
■To prevent causes of overheating and
minor burn injuries
Observe the following precautions when
using a seat heater
●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)
A

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6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................. 312
Cleaning and protecting the vehi- cle interior .................................. 315
6-2. Maintenance Maintenance requirements ... 319
General maintenance ............. 320
Emission inspection and mainte- nance (I/M) programs ......... 322
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................ 324
Hood............................................... 326
Positioning a floor jack............ 326
Engine compartment............... 328
12-volt battery............................. 334
Tires ................................................ 337
Tire inflation pressure .............. 345
Wheels........................................... 346
Air conditioning filter...............348
Electronic key battery ............. 349
Checking and replacing fuses 351
Headlight aim.............................. 353
Light bulbs .................................... 355