How to Turn on the Car Defroster?
3 Answers
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.
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.
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.