Kia Rio: Climate control air filterThe 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 Kia dealer.
✽ NOTICE
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 Kia dealer.
WARNING

Because the refrigerant is 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 damage to the vehicle and personal injury may occur.
The air conditioning system should be serviced by an authorized Kia dealer.
Instrument panel vents
Windshield defrosting and defoggingElectric Oil Pump: Installation
1.
Installation is the reverse of removal.
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Inspection
1.
After disconnecting the vapor hose from the PCV valve, remove
the PCV valve.
2.
Reconnect the PCV valve to the vapor hose.
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Interior light
Do not use the interior lights for extended periods when the engine is not running.
It may cause battery discharge.
WARNING - Interior light
Do not use the interior lights when driving in the dark. ...