2023 HYUNDAI NEXO Owners Manual

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Convenient features of your vehicle
Driver only
If you press the DRIVER ONLY but-
ton( ) and the indicator light
illuminates, cold air mostly blows in
the direction of the driver's seating
position. However, some of the cold
air may be vented out of other seat-
ing position ducts to keep indoor airpleasant.
If you use the button with no passen- ger in the front passenger seat, ener-
gy consumption may be reduced.
DRIVER ONLY button will be turned
off under the following conditions:
1) Defrost on (the DRIVER ONLYbutton indicator is not turned off)
2) DRIVER ONLY button re-push
System Operation
Cooling / Ventilation
1. Select the Face Level mode.
2. Set the air intake control to fresh mode.
3. Set the temperature control to the desired position.
4. Set the fan speed control to the desired speed.
Heating
1. Select the Floor Level mode.
2. Set the air intake control to freshmode.
3. Set the temperature control to the desired position.
4. Set the fan speed control to the desired speed.
5. If desired, turn the air conditioning ON with the temperature control knob set to heat in order to dehu-
midify the air before it enters intothe cabin.
If the windshield fogs up, select the
Floor & Defrost mode or press
the Front Defrost mode.
Operation Tips
If dust or unpleasant fumes are entering the car through the venti-
lation system, temporarily set the
air intake control to the recircula-
tion mode. Return the control to thefresh mode when the unpleasant
air outside has diminished. This will
help keep the driver alert and com-
fortable.
To help prevent the inside of the windshield from fogging, set the air
intake control to fresh mode and
the fan speed to the desired posi-
tion, turn on the air conditioning
system, and adjust the temperature
control to the desired temperature.
DRIVER ONLY
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Air conditioning
Your HYUNDAI vehicle air condition- ing system is filled with R-1234yf
refrigerant.
1. Start the vehicle.
2. Press the air conditioning button.
3. Select the Face Level mode.
4. Set the air intake control toRecirculation mode temporarily to
allow the cabin to cool quickly.
When the desired temperature inthe cabin is reached, change the
air intake control back to Fresh
mode.
5. Adjust the fan speed control and temperature control to maintain
maximum comfort.
When maximum cooling is desired,
set the temperature control to the
MAX A/C position, then set the fanspeed control to the highest setting. When using the air conditioning
system, monitor the temperature
gauge closely while driving up
hills or in heavy traffic when out-
side temperatures. Air condition-
ing system operation when climb-ing a steep grade or in high out-side ambient temperatures can
cause fuel cell stack overheating.
Continue to use the fan, but turn the air conditioning system off if
the temperature gauge indicates
fuel cell stack overheating.
Air conditioning system operation
tips
If the vehicle has been parked in
direct sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
After sufficient cooling has been achieved, switch back from recircu-
lation mode to fresh mode. To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the airconditioning system with the win-
dows and sunroof closed.
Use the air conditioning system every month only for a few minutes
to ensure maximum system per-
formance.
If you operate air conditioner exces- sively, the difference between the
temperature of the outside air andthat of the windshield could cause
the outer surface of the windshield
to fog up, causing loss of visibility. In
this case, set the mode selection
knob or button to the position
and fan speed control to the lowerspeed.
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Convenient features of your vehicle
System Maintenance
Cabin air filter
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core The cabin air filter is installed behind
the glove box. It filters the dust or other
pollutants that enter the vehiclethrough the heating and air condition-ing system.
Have the The cabin air filter replaced
by an authorized HYUNDAI dealeraccording to the maintenance sched-
ule.If the vehicle is being driven in
severe conditions such as dusty or
rough roads and/or if transporting
pets or occupants smoke inside the
vehicle, then more frequent cabin airfilter inspections and changes arerequired.
If the air flow rate suddenly decreas-
es, the system should be checked at
an authorized HYUNDAI dealer.
Checking the amount of air con-
ditioner refrigerant and com-
pressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the airconditioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorized
HYUNDAI dealer.
It is important that the correct type and amount of oil and refrig-
erant is used. Otherwise, damageto the compressor and abnormal
system operation may occur. To
prevent damage, the air condition-
ing system in your vehicle should
only be serviced by trained and
certified technicians.
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3
Air Conditioning refrigerant label
You can find out which air condition-
ing refrigerant is applied to your vehi-cle on the label located inside of thehood.Each symbols and specification on
the air conditioning refrigerant label
is represented as below:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of compressor lubri-
cant
4. Caution
5. Flammable refrigerant
6. To require registered technician to service air conditioning system
7. Service manual
Vehicles equipped with R-1234yf
Since the refrigerant is
mildly flammable andoperated at high pres-
sure, the air condition-
ing system should only
be serviced by trained
and certified techni-
cians. It is important
that the correct type and amount
of oil and refrigerant are used.
All refrigerants should be
reclaimed with proper equipment.
Venting refrigerants directly to the atmosphere is harmful to individu-
als and environment. Failure toheed these warnings can lead toserious injuries.
WARNING
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■ Example

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For maximum defrost perform-
ance, set the temperature control
to the highest temperature setting
and the fan speed control to thehighest setting.
If warm air to the floor is desired while defrosting or defogging, set themode to the floor-defrost position.
Before driving, clear all snow and ice from the windshield, rear win-
dow, side view mirrors, and all side
windows.
Clear all snow and ice from the hood and air inlet in the cowl grill to
improve heater and defroster effi-ciency and to reduce the probability
of fogging up the inside of the wind-shield.Automatic Temperature Control
System
To defog inside windshield
1. Select the desired fan speed.
2. Select the desired temperature.
3. Press the defroster button ( ).
4. Fresh mode will be selected auto- matically.
Check to make sure the air intake
control is in Fresh mode. If the air
intake control LED is illuminated,
press the button once to enable
Fresh mode (LED OFF).
If the position is selected, the fan speed is automatically increased.
Windshield heating
Do not use the or posi- tion during cooling operation in
extremely humid weather. The
difference between the temper-ature of the outside air and thatof the windshield could causethe outer surface of the wind-
shield to fog up, causing loss ofvisibility could cause an acci-
dent resulting in serious injury
or death. In this case, set the
mode selection knob or button
to the position and fan
speed control knob or button to
a lower speed.
WARNING
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3
To defrost outside windshield
1. Set the fan speed to the highest(extreme right) position.
2. Set the temperature to the extreme hot (HI) position.
3. Press the defroster button ( ).
4. The outside (fresh) air position will be selected automatically.
If the position is selected, fan
speed may increase slightly to
improve airflow.
Defogging logic
To reduce the probability of foggingup the inside of the windshield, the
air intake or air conditioning are con-trolled automatically according to
certain conditions such as or
positions. To cancel or reset the
defogging logic, do the following.
Automatic climate control system
1. Turn the POWER button to the ON position.
2. Press the defroster button ( ).
3. While pressing the air conditioning button (A/C), press the air intake
control button at least 5 times
within 3 seconds.
The Automatic Temperature Control
information screen will blink 3 times
to indicate that the defogging logic
has been disabled.
Repeat the steps again to re-enable
the defogging logic.
If the battery has been discharged or
negative (-) battery cable is discon-
nected, it resets to the defog logic
status.
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Convenient features of your vehicle
Auto Defogging System
(Additional Feature with
Automatic Temperature
Control System) (if equipped)
Auto defogging helps reduce the pos-
sibility of fogging up the inside of the
windshield by automatically sensingthe moisture on inside the windshield.
The auto defogging system operates when the heater or air conditioning ison.Information
The auto defogging system may not
operate normally, when the outside
temperature is below -10°C (14°F). When the Auto Defogging
System operates, the indi-
cator will illuminate.
If a high amount of humidity is
detected in the vehicle, the Auto
Defogging System will be enabled.
The following steps will be performedautomatically:
Step 1) The A/C button will turn ON.
Step 2) The air intake control will change to Fresh mode.
Step 3) The mode will be changed to defrost to direct airflow to the windshield.
Step 4) The fan speed will be set to MAX.
If the air conditioning is off or recircu-
lated air position is manually select-
ed while Auto Defogging System is
ON, the Auto Defogging System
Indicator will blink 3 times to signal
that the manual operation has beencanceled.
To cancel or reset the
Auto Defogging System
Press the front windshield defroster
button for 3 seconds when the
POWER button is in the ON position.
When the Auto Defogging System iscanceled, the ADS OFF symbol will
blink 3 times and ADS OFF will be
displayed on the climate control
information screen.
When the Auto Defogging System is
reset, the ADS OFF symbol will blink6 times without a signal.
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3
Information
 When the air conditioning is turned on by Auto defogging system, if you
try to turn off the air conditioning, the
indicator will blink 3 times and the air
conditioning will not be turned off.
 To maintain the effectiveness and efficiency of the Auto Defogging
System, do not select Recirculation
mode while the system is operating.
 When the Auto Defogging System is operating, the fan speed adjustment
button, the temperature adjustment
knob, and the air intake control but-
ton are all disabled.
Do not remove the sensor coverlocated on the upper end of thewindshield glass.
Damage to system parts could
occur and may not be covered by
your vehicle warranty.Rear Window Defroster
To prevent damage to the rear
window defroster conducting ele-ments bonded to the inside sur-
face of the rear window, never use
sharp instruments or window
cleaners containing abrasives to
clean the window.
If you want to defrost and defog
the front windshield, refer to the
"Windshield Defrosting and
Defogging" section in this chapter. The defroster heats thewindow to remove frost,
fog and thin ice from the
interior and exterior of
the rear window, while
the vehicle is in the
ready ( ) mode.
To activate the rear window defroster, press the rear window
defroster button located in the center
control panel. The indicator on the
rear window defroster button illumi-nates when the defroster is ON. To turn off the defroster, press the
rear window defroster button again.
Information
 If there is heavy accumulation of snow on the rear window, brush it
off before operating the rear
defroster.
 The rear window defroster automat- ically turns off after approximately
20 minutes or when the POWER
button is in the OFF position.
Side view mirror defroster
If your vehicle is equipped with the
side view mirror defrosters, they will
operate at the same time you turn on
the rear window defroster.
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NOTICE
NOTICE
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