Hyundai Tucson: System operation

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Owner's Manual / Convenient features / Manual climate control system / System operation


  1. Set the mode to the position. 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.


  1. Set the mode to the  position. 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 position. or Operation Tips 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 theposition.  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.


Your 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.



  • 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.


  • 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 speed position and set the fan speed control knob to the lowest speed setting.


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