Page 6 of 680

TABLE OF CONTENTS6
NX300h_OM_USA_OM78082U
6-4. Other interior featuresOther interior features ............ 455
• Sun visors ................................ 455
• Vanity mirrors ........................ 455
• Clock ........................................ 456
• Power outlet (12 VDC)...... 456
• Power outlet (120 VAC) ....457
• Wireless charger.................. 458
• Armrest.................................... 465
• Assist grips ............................. 465
• Coat hooks ............................. 466
Garage door opener ................467
Compass ........................................473
Safety Connect............................ 477
7-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 484
Cleaning and protecting the vehicle inte rior..................488
7-2. Maintenance Maintenance requirements ..............................491
General maintenance.............. 494
Emission inspection and maintenance (I/M)
programs .....................................497 7-3. Do-it-yourself maintenance
Do-it-yourself service precautions................................ 498
Hood ...............................................500
Positioning a floor jack.............. 501
Engine compartment ............... 502
12-volt battery ...............................512
Tires....................................................516
Tire inflation pressure ............... 525
Wheels ........................................... 528
Air conditio ning filter ............... 530
Electronic key battery.............. 532
Checking and replacing fuses.............................................. 534
Light bulbs .................................... 538
8-1. Essential information Emergency flashers .................. 556
If your vehicle has to be stopped in an
emergency .................................557
7Maintenance and care8When trouble arises
Page 434 of 680
4346-1. Using the air conditioning system and defogger
NX300h_OM_USA_OM78082U
■Option control screen
Select on the climate screen to display the option control screen. The
functions can be switched on and off. Select to set cooling and dehumidification function on/off
Adjust the temperature for driver and passenger seats separately (“DUAL”
mode) ( P. 4 3 5 )
Prevent ice from building up on the windshield and wiper blades
( P. 4 3 6 )
Remove pollen from the air (Micro dust and pollen filter) ( P. 4 3 6 )
■Using the automatic mode
Press the “AUTO” button.
Adjust the temperature setting.
To stop the operation, press the “OFF” button.
■Automatic mode indicator
If the fan speed setting or air flow modes are operated, the automatic mode
indicator goes off. However, automati c mode for functions other than that
operated are maintained.
Vehicles with a Lexus Display Audio
systemVehicles with a navigation system
Air conditioning controls
1
2
3
4
1
2
3
Page 436 of 680
4366-1. Using the air conditioning system and defogger
NX300h_OM_USA_OM78082U
■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 condition-
ing control screen.
In order to prevent the windshield from fo gging 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.
■Windshield wiper de-icer
This feature is used to prevent ice fr om building up on the windshield and
wiper blades.
Select on the option control screen.
When the windshield wiper de-icer is on , is displayed on the air condition-
ing control screen.
The windshield wiper de-icer will automati cally turn off after a period of time.
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode.
Air outlets
Page 438 of 680

4386-1. Using the air conditioning system and defogger
NX300h_OM_USA_OM78082U
■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 th e air from the outlets and defog the wind-
shield effectively.
●If you turn “A/C” off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.
■Windshield fog detection function
When automatic mode is set, the humidity sensor ( P. 4 3 9 ) d e t e c t s f o g o n t h e w i n d -
shield and controls the air conditioning system to prevent fog.
■Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set to
the recirculated air mode. This is effective in preventing outside air from entering the
vehicle interior. During cooling operation, setting the recirculated air mode will also
cool the vehicle interior effectively.
●Outside/recirculated air mode may automa tically switch depending on the tempera-
ture setting or the inside temperature.
■When the outside temperature is low
The dehumidification function may not operat e even when “A/C” is pressed or “A/C” is
selected.
■Operation of the air conditioning system in Eco drive mode
●In the Eco drive mode, the air conditioning sy stem 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 performa nce, perform the following operations
• Adjust the fan speed
• Turn off Eco drive mode
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditio ning system to the outside air mode.
●During use, various odors from inside and outside the vehicle may enter into and accu-
mulate in the air conditioning system. This may then cause odor to be emitted from the
vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode prior to turning the vehicle off.
• The start timing of the blower may be dela yed for a short period of time immediately
after the air conditioning system is started in automatic mode.
■Air conditioning filter
P. 5 3 0
■Customization
Settings (e.g. A/C automatic mode switch operation) can be changed.
(Customizable features: P. 6 3 7 )
Page 483 of 680

483
7Maintenance and care
NX300h_OM_USA_OM78082U
7-1. Maintenance and careCleaning and protecting the vehicle exterior................. 484
Cleaning and protecting the vehicle interior ................. 488
7-2. Maintenance Maintenance requirements.............................. 491
General maintena nce .............. 494
Emission inspection and maintenance (I/M)
programs .....................................497
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................ 498
Hood .............................................. 500
Positioning a floor jack .............. 501
Engine compartment ...............502
12-volt battery............................... 512
Tires ................................................... 516
Tire inflation pressure ............... 525
Wheels ........................................... 528
Air conditioning filter ...............530
Electronic key battery .............. 532
Checking and replacing fuses .............................................. 534
Light bulbs.....................................538
Page 499 of 680

4997-3. Do-it-yourself maintenance
7
Maintenance and care
NX300h_OM_USA_OM78082U
WA R N I N G
The engine compartment contains many mechanisms and fluids that may move suddenly,
become hot, or become electrically energized. To avoid death or serious injury, observe
the following precautions.
■When working on the engine compartment
●Make sure that the indicator on the power switch and the “READY” indicator are
both off.
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, power control unit, radiator, exhaust manifold, etc.
right after driving as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes are flamma-
ble.
■When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automatically start to
run if the air conditioning is on and/or the coolant temperature is high. ( P. 5 0 9 )
■Safety glasses
Wear safety glasses to prevent flying or fallin g material, fluid spray, etc. from getting in
your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt
in the air.
Page 530 of 680
5307-3. Do-it-yourself maintenance
NX300h_OM_USA_OM78082U
Air conditioning filter
Turn the power switch off.
Open the glove box. Slide off the
damper.
Push in the glove box on the vehi-
cle's outer side to disconnect the
claws. Then pull out the glove box
and disconnect the lower claws.
Remove the filter cover.
The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
Removal method
1
2
3
4
Page 531 of 680
5317-3. Do-it-yourself maintenance
7
Maintenance and care
NX300h_OM_USA_OM78082U
Remove the air conditioning filter
and replace it with a new one.
The “UP” marks shown on the filter
should be pointing up.
■Checking interval
Inspect and replace the air conditioning filt er according to the maintenance schedule. In
dusty areas or areas with heavy traffic flow, early replacement may be required. (For
scheduled maintenance informat ion, please refer to the “Owner’s Manual Supplement”
or “Scheduled Maintenance”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
5
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the system.