270
5-2. Using the air conditioning system and defogger
LEXUS NX300h Owners Manu-
al_USA_OM78212U
mode automatically.
This may also reduce fuel consumption.
● Recirculated air mode is selected as a
default mode when the power switch is
turned to ON mode.
● 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. 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.
■ Outside/recirculated air mode
● When driving on dusty roads such as tun-
nels or in heavy traffic, set the outside/
recirculated air mode switch to the recir-
culated air mode. This is effective in pre-
venting outside air from entering the
vehicle interior. During cooling opera-
tion, setting the recirculated 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 (vehicles with driving
position memory)
● Unlocking the vehicle using an electronic
key and turning the power switch to ON
mode will recall that key’s registered air
conditioning settings.
● 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 electronic 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, con-
tact your Lexus dealer.
*
: The doors that can recall the driving posi-
tion memory are changed at the same
time.
■ Operation of the air conditioning sys-
tem in Eco mode
● In the Eco mode, the air conditioning sys-
tem 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 performance,
perform the following operations
• Adjust the fan speed
• Adjust the temperature setting
• Turn off Eco mode
● Even when the drive mode is set to Eco
mode, the air conditioning eco mode can
be turned off by pressing the
■ When the outside temperature is low
The dehumidification function may not
operate even when “A/C” is pressed or “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 period of time imme-
diately after the air conditioning system is
started in automatic mode.
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