How to Turn on the Car Defroster?

[HavenRose]

Car defroster switch: The front windshield defroster is represented by a fan-shaped pattern with three upward lines, and the rear windshield defroster is represented by a rectangular pattern with three upward lines. Press the corresponding button to activate it. Below is an introduction to the defroster: 1. The function of the defroster is to capture mist particles and slurry droplets carried by the flue gas during the spray absorption process. 2. The defroster mainly consists of plates and a support device. The plates are usually made of two types of materials: polymer materials (such as polypropylene PP, FRP, etc.) or stainless steel (such as 316L, 317L, etc.). They are generally divided into streamlined and folded types.

[MacLuke]

When driving in heavy fog, I quickly press that fan-shaped button on the dashboard—that's the front windshield defroster switch, and usually the fan automatically adjusts to maximum. Set the temperature a bit higher, like above 26°C, and turn on the AC for faster dehumidification. If the rear window fogs up, press another button with a square-shaped symbol. When I first bought the car, I often made mistakes, like forgetting to turn on the AC, and the fog wouldn't clear for a long time. In winter, let the car warm up for a few minutes before turning on the defroster for better results. Remember to clean the cabin air filter regularly to prevent dust from affecting airflow efficiency—safe driving comes first. Some cars have an automatic mode; pressing AUTO lets it adjust intelligently, which is quite handy, but manual control is more reliable in sudden fog. In short, don’t rush to hit the road before the fog clears—poor visibility poses high risks.

[LaAurora]

I often drive on the road, and fog can really block my view. The defog button is near the steering wheel, the one with the fan-shaped icon—just press it and the fan blows hard. Turning up the temperature and turning on the AC compressor to remove moisture works especially well. The rear window defogger has a separate button with a square symbol. After driving for so many years, I've developed the habit of pressing the defogger as soon as I get in the car. When it's cold, don't turn the fan on too strong—wait until the engine warms up for better efficiency. In heavy rain, the fog gets thicker, so slowing down is essential. Regularly clean the car and wipe the inside and outside of the windows to reduce fog buildup. If the button breaks, get it fixed promptly—small issues can become safety hazards if ignored. Don’t get distracted by other tasks until the fog is cleared.

[Elise]

Turning on the defroster is quite simple: locate the fan-shaped button on the dashboard and press it once, then the fan will automatically blow air to defog. Adjust the temperature to around 25 degrees and turn on the AC to remove moisture effectively. For the rear window defroster, use the other square-shaped button. Fogging is usually caused by significant temperature differences inside the car, and the air conditioning system can disperse the moisture to clear it up. Some people forget to turn on the AC, which reduces the effectiveness by half. When learning to drive, practice these operations more often. The heater works well in winter, while the air conditioner is better in summer. Safety comes first—if the fog is heavy, stop to deal with it before continuing, especially on highways. Regular car maintenance can help reduce fogging issues.

[DiAndres]

Act fast when fog appears: I directly press the defog button on the console—the fan-shaped icon. Set the fan to level 3 or higher, adjust the temperature to warm (like 28°C), and turn on the AC for super-effective dehumidification. For the rear window, press another button with a small square symbol. During foggy morning commutes, warm up the engine first before blasting high air—don’t blast cold air right after getting in. On rainy days with heavy humidity, AC is key. Regularly clean the AC filter to prevent clogging and slow airflow. If fog lingers on the road, don’t force it—pull over safely, wait a few seconds, and reassess. Master these steps for easy visibility and safety.