What to Do When There is Frost on the Windshield in the Morning?
3 Answers
When there is frost on the car windshield in the morning, the solution is to start the engine and turn on the external circulation system inside the car. Adjust the fan speed to level four or higher, and use the hot air mode to blow on the glass. After a few minutes, the frost on the windshield will be removed. The causes and hazards of frost formation are as follows: 1. When it snows or the air is humid, moisture attaches to the glass and melts. During the melting process, as the temperature inside and outside the car becomes nearly the same, the moisture solidifies into ice beads, forming frost on the glass, which results in frost on the car windshield. 2. In winter, due to low environmental temperatures, frost on the windshield can severely obstruct the driver's view, reducing driving safety.
Morning frost on the windshield is quite common. I usually use an ice scraper combined with warm air. First, start the car and set the air conditioning to the defrost mode, directing it toward the front windshield. The effect is better once the engine warms up. Then, gently scrape off the frost layer with a plastic ice scraper or an old bank card—never pour hot water, as the glass might crack! If you're in a hurry, keeping a bottle of de-icing spray in the trunk works exceptionally well. Additionally, controlling the humidity inside the car when parking overnight can reduce frost formation. For example, using desiccant bags or opening all four doors to let out moisture before closing them helps. Leaving a small gap in the window also works, as it reduces the temperature difference inside and outside, making frost less likely to form.
Don't panic when you see frost on the windshield—I've got a time-saving routine. After starting the car, first blast the defroster at maximum heat to soften the frost for a few minutes. Then use an old credit card or a dedicated ice scraper to gently scrape at an angle—it clears the frost cleanly without damaging the glass. If you're in a rush to work, wipe down the side windows and mirrors with a defogging cloth while the heater is running. By the way, it's a good idea to keep a foldable car cover handy during frost season—just cover the car when parked overnight to prevent frost buildup. Some people wipe their windows with a vinegar-water mix to prevent frost—it works decently, though it leaves a slight sour smell in the car. Frost forms quickly on the outside of the windshield but poses high risks—never compromise and drive with it.
