Hyundai Sonata: Automatic climate control system / System Maintenance

System Maintenance

This 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.

Have the climate control air filter replaced by an authorized HYUNDAI dealer according to the maintenance schedule. If the car is being driven in severe conditions such as dusty or rough roads, more frequent air conditioner filter inspections and changes are required.

If the air flow rate suddenly decreases, the system should be checked at an authorized HYUNDAI dealer.

Checking the amount of air conditioner refrigerant and compressor lubricant

When the amount of refrigerant is low, the performance of the air conditioning is reduced. Overfilling also has a negative influence on the air conditioning system.

Therefore, if abnormal operation is found, have the system 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.

WARNING

Vehicles equipped with R-1234yf

Because the refrigerant is mildly inflammable at very 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 is used.

Otherwise, it may cause damage to the vehicle and personal injury.

The air conditioning system should be serviced by an authorized HYUNDAI dealer.

Air Conditioning refrigerant label

The actual Air Conditioning refrigerant label in the vehicle may differ from the illustration.

Each symbols and specification on air conditioning refrigerant label means as below :

1. Classification of refrigerant

2. Amount of refrigerant

3. Classification of Compressor lubricant

Refer to chapter 8 for more detail location of the air conditioning refrigerant label.

System Operation
Ventilation 1. Select the Face Level mode. 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 t ...

Windshield defrosting and defogging
WARNING Windshield heating Do not use the or position during cooling operation in extremely humid weather. The difference between the temperature of the outside air and that of the windshield cou ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: SRS Control Module (SRSCM) Repair procedures
Removal 1. Remove the ignition key from the vehicle. 2. Disconnect the battery negative cable and wait for at least three minutes before beginning work. 3. Remove the floor console. (Refer to Body - "Floor Console Assembly") 4. Pull up the lock (C), of the SRSCM connector, then disc ...

Hyundai Sonata LF 2014-2019 Owners Manual: Blind spot mirror
The Blind Spot Mirror (BSM) is a supplemental mirror that reduces the driver’s blind spot by showing the rear side area of the vehicle. The blind spot mirror is equipped on the left-hand side view mirror. WARNING Always check the road condition while driving for unexpected situations even t ...

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