Which button to press for foggy windows in Toyota Corolla on rainy days?
3 Answers
Toyota Corolla's button for foggy windows on rainy days is marked with three upward wavy lines. Defroster: The defroster (demister/mist-eliminator) mainly consists of corrugated blades, plates, clamping strips and other fixing devices. In wet desulfurization processes, the absorption tower tends to generate 'fog' with particle sizes of 10-60 microns during operation. This 'fog' not only contains moisture but also dissolves sulfuric acid, sulfates, sulfur dioxide, etc., causing contamination and severe corrosion to fans, heat exchangers and flues. Therefore, wet desulfurization processes require defogging equipment, and purified gas must be defogged before leaving the absorption tower. The defroster nozzle is one of the main components of the defogging system, primarily made of high-quality plastic with excellent wear resistance and long service life. Function of defroster: The defroster switch control can reduce moisture, fog and frost on the front and rear glass surfaces, improving the driver's visibility to some extent. If the defroster is manually turned off, it needs to be pressed again before next use. Besides the defrost button, using the air conditioner can also defog windows, but there are techniques for using cold or warm air, with very direct effects.
When driving a Corolla in the rain, I always deal with fogged-up windows immediately. There's a defogger button on the center console with an icon resembling a fan or snowflake shape. Pressing it activates the fan and engages the air conditioning to quickly remove moisture. On rainy days with high humidity, fog forms rapidly, but operating this button is intuitive—it typically clears the fog in about one or two minutes, restoring clear visibility. I remember one time on the highway when the fogging was severe, and pressing this button stabilized the situation. For prevention during regular driving, it's best to keep the air conditioning running—cooling in summer and heating in winter—to minimize fog buildup. Also, avoid opening car windows too wide to prevent excess moisture from entering. Safety always comes first.
As a long-term Corolla owner, dealing with foggy windows on rainy days can be quite annoying. Simply press the defogger button, usually located in the center of the air conditioning control panel, marked with a rectangle and wavy lines. Pressing it automatically adjusts the fan and A/C for efficient dehumidification. Fogging occurs due to condensation from the temperature difference between the inside and outside of the car, so dehumidification is key. I prefer keeping the air recirculation on and setting the temperature around 20-25°C—prevention is better than cure. If fogging persists, check if the windows are clean or if the tint film is intact; for older cars, a clogged filter might need replacing. These small details can significantly improve driving comfort.
