2013 Hyundai Sonata Owner's Manual - Page 173

Features of your vehicle ✽ NOTICE Outside air Recirculated air Blower Climate control air filter Heater core Evaporator core • 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, 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. OMG075033 Climate control air filter The climate control air filter installed behind the glove box filters the dust or other pollutants that come into the vehicle from the outside through the heating and air conditioning system. If dust or other pollutants accumulate in the filter over a period of time, the air flow from the air vents may decrease, resulting in moisture accumulation on the inside of the windshield even when the outside (fresh) air position is selected. If this happens, have the climate control air filter replaced by an authorized HYUNDAI dealer. 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. ✽ NOTICE WARNING The air conditioning system should be serviced by an authorized HYUNDAI dealer. Improper service may cause serious injury to the person performing the service. 4 92