Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Automatic Climate Control System / System Maintenance

Air Conditioning Performance and Maintenance at Your HYUNDAI Dealer

If the amount of refrigerant is too low or too high, the performance of the air conditioning is reduced. Have the system be inspected by an authorized HYUNDAI dealer.


  • The refrigerant system should only be serviced by trained and certified technicians in a well-ventilated area to ensure proper and safe operation.
  • Never repair the air conditioning evaporator (cooling coil) or replace with the one removed from a used or salvaged vehicle. A new replacement evaporator must be certified (and labeled) as meeting SAE Standard J2842.


To prevent serious injury, have the air conditioning system be serviced by only trained and certified technicians. R-1234yf is flammable and operated at high pressure.

Reclaim all refrigerants with proper equipment. Venting refrigerants directly to the atmosphere is harmful to individuals and environment.

Air conditioning refrigerant label

You can find out which air conditioning refrigerant is applied to your vehicle on the label located inside of the hood.


Each symbol and specification on the air conditioning refrigerant label is represented as the following:

    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 co ...

    Windshield Defrosting and Defogging
    WARNING Do not use the defrost-level position during the cooling operation in extremely humid weather. The outer surface of the windshield may fog and reduce visibility, causing a collisio ...

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