What to Do When the Car's Exterior Glass Becomes Unclear in Rain?
2 Answers
Here are several methods to deal with unclear exterior car glass in rain: 1. Use the rearview mirror electric heating function: Many car models come with a rearview mirror heating function. When activated, the rearview mirror can maintain good clarity even in rainy weather. However, if the side window glass still has rainwater, even after using the rearview mirror heating to dry the water on the mirror, the view inside the rearview mirror may still be unclear from inside the car, significantly reducing its effectiveness. 2. Install rain deflectors: The advantage of installing rain deflectors is that when driving in light or moderate rain, the deflectors can help prevent rainwater from directly hitting the rearview mirror. However, in heavy rain, the effectiveness of the deflectors may be limited, requiring the driver to reduce speed appropriately, as safety is the top priority.
When the windshield is unclear in the rain, as an experienced driver for many years, my go-to solution is to immediately turn on the wipers. For light rain, quickly sweep away the water droplets. Don’t forget the defogger button inside the car—turning it on activates the air conditioning system’s dehumidification function, balancing the interior temperature and humidity to prevent fogging and maintain visibility. Keeping the windows clean is also crucial; I use glass cleaner weekly to scrub both the inside and outside, as oil buildup can make rainwater stick and harder to clear. In heavy rain, slow down and ensure the wipers are functioning properly. If they squeak or leave streaks, the blades may be worn and need replacement. For prevention, applying a rain-repellent coating helps water droplets roll off more easily. Safety comes first—if visibility is poor, never push through; pull over safely, adjust, and then continue driving.
