Which Button to Press for Car Fogging?

[BennettDella]

For car fogging, press the air conditioning cooling button or the front windshield defogging button. The formation of fog on the windows is due to the higher temperature inside the car compared to the outside, leading to the formation of fog. The car defogging switch has two buttons: one for the front windshield defogging, marked with a fan shape containing three upward wavy lines, and another for the rear windshield defogging, marked with a rectangle containing three upward wavy lines. The quickest method to defog the car interior on rainy days is to activate the front windshield defogging mode, turn on the air conditioning cooling (A/C) switch, and set the temperature to the lowest. The fog will clear up quickly. For automatic air conditioning, simply press the one-touch defrost button, and the rest of the operations will be performed automatically. You can also use the heating system for defogging, which is also very effective, but the downside is that it takes longer, usually a few minutes.

[SanJackson]

Defogging depends on where the fog is. When the windshield fogs up, press the button with the fan-shaped and wavy symbol—the AC will automatically direct airflow to the front windshield, usually taking effect in about 10 seconds. For rear window fogging, press the rectangular button next to it, which activates the rear window heater. In winter, avoid setting the temperature too high; mixing cold and warm air speeds up defogging. I usually turn on the AC for dehumidification and switch to external circulation to prevent recurring fogging. Some cars have side mirror heaters—turning them on during rainy days keeps both side views clear. Remember, never wipe the windshield with a towel while driving—it’s too risky. Just press the buttons for a safe solution.

[AmirDella]

For beginners, just remember two buttons: press the fan-shaped icon for the front defroster, and the rectangular icon for the rear defroster. In my car, these two buttons are placed in the most prominent positions on the air conditioning panel. Once pressed, the fan immediately starts blowing loudly. If the fog is particularly heavy, it's recommended to first turn on the external circulation to expel the moisture, and then switch back to internal circulation once visibility is clear to prevent dust from entering the car. Notice that using the heater to defog is slow in winter? Turning on the AC compressor to dehumidify speeds up the process significantly. Placing an absorbent towel on the dashboard can prevent sudden window fogging on humid days.

[StMaria]

The fastest way is to press the windshield defogging shortcut key directly! Press the fan-shaped button for the front windshield, and the square button for the rear window. Remember to turn on the AC to dehumidify and defog faster. Use the external air circulation to keep the air flowing and reduce repeated fogging. When the side mirrors fog up, look for the button with the wavy arrow. Always keep a defogging spray in the car; spraying it once before rain can last for a month. Feeling chilly when using cold air to defog? Adjust the temperature to around 22 degrees for both comfort and efficiency.