What to Do When Rainwater Covers Car Windows?
4 Answers
Waterproofing methods for rearview mirrors can also be applied to side windows, such as applying soap, dishwashing liquid, or water repellent. You can directly blow air onto the windows or set the air conditioning to cold air blowing directly onto the windows, both of which can effectively remove fog.
When the car windows are covered with rain while driving, as a frequent driver, my solution is to immediately activate the windshield wipers and adjust the speed according to the rainfall to ensure clear forward visibility. At the same time, I turn on the defogging function of the car's air conditioning, directing the airflow toward the windshield to evaporate moisture and prevent fogging. I always keep a clean towel in the car, using it to wipe the side windows and rearview mirrors during red light stops to avoid water buildup obstructing my view. Once, during heavy rain, I almost rear-ended another car due to poor visibility, and since then, I’ve made it a habit to slow down in rainy conditions, keeping my speed within a safe range. I also regularly clean the inner and outer surfaces of the windows with specialized glass cleaner to reduce dust buildup and allow rainwater to slide off faster. Prevention is better than cure—these daily details significantly enhance driving safety in the rain.
Understanding the principle of windshield rain management is straightforward. Raindrops reflect light on the glass surface, reducing visibility. Wipers mechanically remove water but worn rubber blades may leave streaks, so I recommend checking and replacing them every six months. Applying rain repellent products like Rain-X alters the glass surface tension, causing water to bead and roll off quickly. The air conditioning defogger disperses moisture with warm air—remember to use it regularly. I also clean the windows to remove grease buildup and minimize fogging. When temperature differences cause condensation, switching to recirculation mode helps. All these steps ensure your tools function efficiently, making driving more reliable. Maintaining a well-kept glass surface forms the fundamental safety barrier against rain.
Safety must come first. Rain obstructing the windshield poses high risks, so immediately activate the front and rear wipers to clear the rainwater. Reduce speed and turn on hazard lights to alert following vehicles. Use the air conditioning defog function to quickly dissipate condensation. Avoid wiping windows by hand while driving to prevent distraction. Lessons learned: if heavy rain impairs visibility, find a safe place to pull over and wait. Pedestrians and other vehicles rely on the driver's clear vision—keeping windows transparent is a critical lifeline. These measures are highly effective and practical for accident prevention.
