Which button to press when there is fog inside the car?

[ORichard]

To remove fog inside the car, press the front window defogging button. The formation of fog on the windows is caused by the temperature difference between the cold outside and warm inside. Methods to defog: 1. Open the windows slightly to allow air convection when the fog is not heavy. This balances the temperature difference between inside and outside, gradually eliminating the fog; 2. Use the air conditioning system to defog by turning on the fan and cooling switch. The cold air directed at the front windshield will quickly remove the fog; 3. Apply a defogging agent to the inner surface of the car windows and wipe it clean. This not only cleans the glass but also forms a protective film to prevent moisture condensation and fog formation. One application can prevent fogging for about ten days.

[OJuliet]

I've been driving for almost ten years, and fogging up inside the car is all too common, especially on rainy winter days when a white layer of fog covers the windshield, making it hard to see the road. The way to deal with it is to press the defrost button on the dashboard—the one with the icon of a small square with three wavy lines on top. Pressing it will automatically turn the AC to maximum fan speed, blowing hot air directly at the front windshield, and the fog will disappear in seconds. Remember to turn on the AC first and set the temperature to around 22 degrees for the most comfortable setting—not too cold or too hot. If the fog clears but comes back, it might be because the windshield is too dirty or has an oily film; just wipe it with a clean cloth and try again. To prevent fogging, start the car a few minutes early to warm it up, or on rainy days, dry your shoes before getting in to reduce moisture. Safety comes first when driving—if the fog is too thick to see, find a place to pull over and handle it.

[IkerRose]

When my wife was learning to drive, I taught her that as soon as fog appears inside the car, she should look for the defogger button. It's located in the air conditioning control area below the left side of the steering wheel, marked with a small fan and an upward arrow. Just press the button briefly, and the air conditioning fan will blow loudly towards the windshield, clearing the fog within seconds. Also, make sure the A/C mode is on to help with dehumidification, and set the temperature to a neutral level, like 20-25 degrees, as heating up too quickly can cause new fog to form. A little prevention tip is to slightly open the window for air circulation and avoid leaving wet towels or similar items in the car. New drivers shouldn't panic—once the fog clears, just drive normally and avoid randomly pressing buttons in the middle of the road.

[DeAiden]

When fog appears, don't panic. First, ensure your car has an air conditioning system. Locate the windshield defogger button on the center console - it's marked with a square and three upward lines. Press it to activate strong fan airflow that quickly clears the windshield. Operate with external circulation to introduce dry air at moderate, comfortable temperature. For maintenance, regularly replace the cabin air filter to reduce dust accumulation. Persistent fogging may indicate aging window seals needing repair - always check button responsiveness before pressing. Remember: safety first when driving in fog - pull over if needed before continuing your journey.

[FinleyFitz]

My car with automatic air conditioning is super convenient for defogging. When fogging occurs inside the car, just press the defog button—the one with the rectangular icon and an upward arrow—and the fan powerfully clears the fog in an instant. Alternatively, you can first press the AUTO mode, and the system will automatically adjust the temperature and humidity. Set the temperature between 22-25°C and turn on the A/C to prevent condensation. As a preventive measure, use the defog button frequently on rainy or snowy days to maintain clear visibility. A safety reminder: if fog occurs while driving, don’t get distracted; press the button and confirm your vision is clear before proceeding.