Hyundai Tucson: Heater unit assembly

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Heating, Ventilation and Air Conditioning (HVAC) / Heater / Heater unit assembly

Component Location

  1. Heater unit assembly


  1. Heater unit assembly
  2. Heater core cover
  3. Heater core assembly
  4. Mode control actuator LH
  5. DEF duct seal
  6. Evaporator assembly
  7. Flange seal
  8. Heater NVH pad
  9. Temperature control actuator LH
  10. Heater case LH
  11. Vent door assembly LH
  12. Vent door assembly RH
  13. Auto defogging actuator
  14. Mode control actuator RH
  15. Foot door LH
  16. Foot door RH
  17. Heater case RH
  18. Temperature control actuator RH
  19. Temperature door assembly LH
  20. Console seal duct
  21. Console door assembly
  22. Temperature door assembly RH
  23. Heater blind case
  24. Heater NVH pad
  25. PTC heater
  26. Aspirator hose assembly
  27. Heater lower case
  28. Drain hose assembly


     Heater - Replacement

    Disconnect the negative (-) battery terminal. Recover the refrigerant with a recovery/recycling/charging station. (Refer to Air conditioning System - "Repari procedures") When the engine is cool, drain the engine coolant from the r

     Heater - Inspection

    Operating Logic Test (Manual only) Inspect the PTC operation with the confirmation logic below : Entering (1) Set the mode to FLOOR. (2) Set the temperature to MAX HOT. (3) Turn off the blower switch. (4) Press the intake (recirculat

     Driver side temperature control actuator / Passenger side temperature control actuator

    Component Location Driver side temperature control actuator Passenger side temperature control actuator Inspection Turn the ignition switch OFF. Disconnect the temperature control actuator connector. Verify that the temperature c


     Smart Key Code Saving

    Smart Connect the DLC cable of diagnostic tool to the data link connector (16 pins) in driver side crash pad lower panel, turn the power on diagnostic tool. Select the 'S/W Management' and 'Car model'. Select the

     Good driving practices

    Never move the shift button from P (Park) or N (Neutral) to any other position with the accelerator pedal depressed. Never move the shift lever/button into P (Park) when the vehicle is in motion. Be sure the vehicle is completely sto