2023 HYUNDAI TUCSON heating

05
5-99
System operation
Ventilation
1. Set the mode to the position.
2. Set the air intake control to the
outside (fresh) air position.
3. Set the temperature control to the
desired position.
4. Set the fan speed control to the
desired speed.
Heating
1. Set the mode to the position.
2. Set the air intake control to the
outside (fresh) air position.
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 dehumidify the air
before it enters into the cabin.
If the windshield fogs up, set the mode
to the
or position.
Operation Tips
• To help keep dust or unpleasant fumes
from entering the vehicle through the
ventilation system, temporarily set the
air intake control to the recirculated
air position. Be sure to return the
control to the fresh air position when
the irritation has passed to keep fresh
air in the vehicle. This will help keep
the driver alert and comfortable.
• To prevent interior fog on the
windshield, set the air intake control
to the fresh air position and fan speed
to the desired position, turn on the air
conditioning system, and adjust the
temperature control to the desired
temperature.
Air conditioning
HYUNDAI Air Conditioning Systems are
filled with R-1234yf refrigerant.
1. Start the engine. Push the air
conditioning button.
2. Set the mode to the position.
3. Set the air intake control to the
outside air or recirculated air position.
4. Adjust the fan speed control and
temperature control to maintain
maximum comfort.
Information
ONX4050071Your HYUNDAI vehicle is filled with
R-1234-yf refrigerant. Information
regarding the refrigerant designation
for your vehicle can be found on the
information label located under the hood.
Refer to chapter 8 for the location of the
air conditioning refrigerant label.

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5-100
NOTICE
• The refrigerant system should only
be serviced by trained and certified
technicians to insure proper and safe
operation.
• The refrigerant system should be
serviced in a well-ventilated place.
• The air conditioning evaporator
(cooling coil) shall never be repaired
or replaced with one removed from
a used or salvaged vehicle and new
replacement MAC evaporators shall
be certified (and labeled) as meeting
SAE Standard J2842.
NOTICE
• When using the air conditioning
system, monitor the temperature
gauge closely while driving up
hills or in heavy traffic when
outside temperatures are high.
Air conditioning system operation
may cause engine overheating.
Continue to use the fan but turn the
air conditioning system off if the
temperature gauge indicates engine
overheating.
• When opening the windows in humid
weather air conditioning may create
water droplets inside the vehicle.
Since excessive water droplets
may cause damage to electrical
equipment, air conditioning should
only be used with the windows
closed. 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 the
recirculated air to the fresh outside air
position.
• To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the windows
and sunroof closed.
• Use the air conditioning system every
month for a few minutes to ensure
maximum system performance.
• If you operate the air conditioner
excessively, the difference between
the temperature of the outside air and
that 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 to
the
position and set the fan speed control knob to the lowest speed
setting.

05
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System maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin 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 vehicle through
the heating and air conditioning system.
We recommend that the cabin air filter
be replaced by an authorized HYUNDAI
dealer according to the maintenance
schedule.
If the vehicle is being driven in severe
conditions such as dusty or rough roads,
more frequent climate control filter
inspections and changes are required.
If the air flow rate suddenly decreases,
we recommend the system be checked
at an authorized HYUNDAI dealer.
Air Conditioning Performance and
Maintenance at Your HYUNDAI
Dealer
When the amount of refrigerant is low,
the performance of the air conditioning
is reduced. Overfilling also reduces the
performance of the air conditioning system.
Therefore, if abnormal operation is found, we
recommend that the system be inspected by
an authorized HYUNDAI dealer.
NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur. To prevent damage, the air
conditioning system in your vehicle
should only be serviced by trained and
certified technicians.
WARNING
Vehicles equipped with R-1234yf
Since the refrigerant is
mildly flammable and
operated at high pressure,
the air conditioning system
should only be serviced
by trained and certified
technicians. 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 individuals
and environment. Failure to heed these
warnings can lead to serious injuries.

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5-104
Automatic heating and air
conditioning
The Automatic Climate Control System
is controlled by setting the desired
temperature.
1. Press the AUTO button.
The modes, fan speeds, air intake and
air-conditioning will be controlled
automatically by the temperature
setting you select.
ONX4E050162
You can control the fan speed in three
stages by pushing the AUTO button
during automatic operation.
-HIGH : Provide rapid air conditioning
and heating with maximum fan speed
setting
-MEDIUM : Provide air conditioning
and heating with mid-level fan speed
setting
-LOW : Fan speed is set to the lowest
setting range (1 to 3 bars range)
2. Turn the temperature control button/
knob to set the desired temperature.
If the temperature is set to the lowest
setting (Lo), the air conditioning
system will operate continuously.
After the interior has cooled
sufficiently, adjust the button/knob
to a higher temperature set point
whenever possible.
To turn the automatic operation off,
select any button of the following:
- Mode selection button
-Front windshield defroster button
(Press the button one more time
to deselect the front windshield
defroster function. The ‘AUTO’ sign
will illuminate on the information
display once again.)
-Fan speed control button
The selected function will be
controlled manually while other
functions operate automatically.
For your convenience and to improve
the effectiveness of the climate control,
use the AUTO button and set the
temperature to 72°F (22°C).

05
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ONX4050072
Information
Never place anything near the sensor to
ensure better control of the heating and
cooling system.
Manual heating and air
conditioning
1. Start the engine.
2. Set the mode to the desired position.
For improving the effectiveness of
heating and cooling, select:
-Heating:
-Cooling:
3. Set the temperature control to the
desired position.
4. Set the air intake control to the
outside (fresh) air position.
5. Set the fan speed control to the
desired speed.
6. If air conditioning is desired, turn the
air conditioning system on.
7. Press the AUTO button to convert to
full automatic control of the system.

05
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ONX4050122
Adjusting the temperature equally
Press the SYNC button (indicator light
ON) to adjust the driver and passenger
side and the rear seat’s temperature
equally.
Adjusting the temperature and
individually
Press the SYNC button (indicator light
OFF) again to adjust the driver and
passenger side and the rear seat’s
temperature individually.
Temperature conversion
If the battery has been discharged or
disconnected, the temperature mode
display will reset to Fahrenheit.
To change the temperature unit from °C
to °F or °F to °C :
-Instrument cluster or infotainment
system screen
Go to Setup→ Unit → Temperature unit
The temperature unit on both the cluster
LCD display and the climate control
screen will change.
Air intake control
The air intake control button is used to
select either Fresh mode (outside air) or
Recirculation mode (cabin air).
Recirculated air position
With the recirculated air
position selected, air from the
passenger compartment will
be drawn through the heating
system and heated or cooled
according to the function
selected.
Outside (fresh) air position
With the outside (fresh) air
position selected, air enters
the vehicle from outside
and is heated or cooled
according to the function
selected.

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5-110
Information
Using the system in the fresh air position is
recommended.
Prolonged operation of the heater in the
recirculated air position (without air
conditioning selected) can cause fogging of
the windshield and side windows and the
air within the passenger compartment will
become stale.
In addition, prolonged use of the air
conditioning with the recirculated air
position selected will result in excessively
dry air in the passenger compartment.
WARNING
• Continued climate control system
operation in the recirculated air
position may allow humidity to
increase inside the vehicle which
may fog the glass and obscure
visibility.
• Do not sleep in a vehicle with the air
conditioning or heating system on. It
may cause serious harm or death due
to a drop in the oxygen level and/or
body temperature.
• Continued climate control system
operation in the recirculated air
position can cause drowsiness
or sleepiness, and loss of vehicle
control. Set the air intake control
to the outside (fresh) air position as
much as possible while driving.
Fan speed control
ONX4050124
The fan speed can be set as desired by
pushing the fan speed control button.
Increased air flow is delivered with
higher fan speeds.
Pressing the OFF button turns off the fan.
NOTICE
Operating the fan when the ignition
switch is in the ON position could cause
the battery to discharge. Operate the
fan when the engine is running.
Air conditioning
Push the A/C button to turn the air conditioning system
on (indicator light will
illuminate).
Push the button again to turn
the air conditioning system
off.
OFF mode
Push the OFF button to turn
the climate control system
off. However, you can still
operate the mode and air
intake buttons as long as the
ignition switch is in the ON
position.

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5-112
ONX4050128
When the Multi-Air mode button is
pressed, air flow is directed to the
face level and floor level and through
perforated sections along the instrument
panel for the driver and passenger. The
multi-air mode LED indicator will be
illuminated. If the multi air mode button
is pressed when the air volume is beyond
level 4, it decreases to Level 3.
OFF
If you press the multi-air button again,
the indicator will turn OFF and the
directed air flow will be according to the
previous setting before multi-air mode
was enabled.
If you press the MODE selection button,
the airflow will change based on the
MODE selected.
System operation
Ventilation
1. Set the mode to the position.
2. Set the air intake control to the
outside (fresh) air position.
3. Set the temperature control to the
desired position.
4. Set the fan speed control to the
desired speed.
Heating
1. Set the mode to the position.
2. Set the air intake control to the
outside (fresh) air position.
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 dehumidify the air
before it enters into the cabin.
If the windshield fogs up, set the mode
to the
or position.
Operation Tips
• To help keep dust or unpleasant fumes
from entering the vehicle through the
ventilation system, temporarily set the
air intake control to the recirculated
air position. Be sure to return the
control to the fresh air position when
the irritation has passed to keep fresh
air in the vehicle. This will help keep
the driver alert and comfortable.
• To prevent interior fog on the
windshield, set the air intake control
to the fresh air position and fan speed
to the desired position, turn on the air
conditioning system, and adjust the
temperature control to the desired
temperature.