2022 Volkswagen Jetta Owner’s Manual — Defrost function
Heating and air conditioning system
Switching defrost on and off
The Climatronic defrost function clears fog and ice from the windshield.
The air is dehumidified and the blower is set to a higher speed.
The air conditioning system's defrost function clears the windshield of fog and ice.
The air must be dehumidified when the defrost function is switched on. Therefore when the defrost function is switched on, you cannot switch air recirculation on or cooling mode off.
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