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System maintenance

Cabin air filter

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 and/or if transporting pets or occupants smoke inside the vehicle, then more frequent cabin air filter inspections and changes are required.

  • Replace the filter according to the Maintenance Schedule. If the vehicle is being driven in severe conditions such as dusty, rough roads, more frequent climate control air filter inspections and changes are required.

  • When the air flow rate suddenly decreases, we recommend that your vehicle be inspected by an authorized HYUNDAI dealer.

Checking the amount of air conditioner refrigerant

If the amount of refrigerant is too low or too high, the performance of the air conditioning is reduced. We recommend that your vehicle be inspected by an authorized HYUNDAI dealer.

Vehicles equipped with R-1234yf

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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.

Vehicles equipped with R-134a

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To prevent serious injury, have the air conditioning system be serviced by only trained and certified technicians. R-134a is operated at high pressure.

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

The refrigerant system should only be serviced by trained and certified technicians in a well-ventilated area to ensure proper and safe operation.

Air conditioning refrigerant label

2025 Hyundai Tucson air conditioning refrigerant label location image. The image shows the open hood with a circular marker indicating the label's position on the underside of the hood, and a close-up inset displays the black rectangular label. Explains where to find the label to identify the air conditioning refrigerant type.

2C_RefrigerantTypeLabel

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

Type A
2025 Hyundai Tucson Air conditioning refrigerant label Type A image. It shows callouts for (1) R-1234yf refrigerant classification, (2) refrigerant amount, (3) PAG compressor lubricant, (4) caution symbol, (5) flammable refrigerant warning, and (6) requirement for a registered technician. Explains the label symbols and specifications.

2C_RefrigerantLabel

Type B
2025 Hyundai Tucson air conditioning refrigerant label image. The label indicates the refrigerant type R-134a (1), the amount (2), and the compressor lubricant PAG (3). It includes a caution symbol (4) and a service manual icon (7). This explains the specifications required for servicing the air conditioning system.

2C_RefrigerantLabel_2

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

  1. Classification of refrigerant
  2. Amount of refrigerant
  3. Classification of compressor lubricant
  4. Caution
  5. Flammable refrigerant
  6. To require registered technician to service air conditioning system
  7. Service manual