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Hyundai Tucson: System maintenance

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

Cabin air filter

[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.

Air Conditioning refrigerant label

You can find out which air conditioning

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

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

Classification of refrigerant
Amount of refrigerant
Classification of compressor lubricant
Caution
Flammable refrigerant
To require registered technician to service air conditioning system

Automatic climate control system

Automatic heating and air conditioning

Driver's temperature control button/ knob Passenger's temperature control button/knob AUTO (automatic control) button Air intake control button OFF button Front windshield defroster button A/C (air conditioning) button Fan sp

Manual heating and air conditioning

Start the engine. Set the mode to the desired position. For improving the effectiveness of heating and cooling, select: Heating: Cooling: Set the temperature control to the desired position. Set the air intake contr

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Power Relay (Type A)

Component Location Engine room junction block ICU Junction block Inspection Power Relay (Type A) There should be continuity between the No.30 and No.87 terminals when power and ground are connected to the No.85 and No.86

Low tire pressure position and tire pressure telltale

When the tire pressure monitoring system warning indicators are illuminated and a warning message displayed on the cluster LCD display, one or more of your tires is significantly under-inflated. The Low Tire Pressure Position Telltale will