What to Do When the Left and Right Rearview Mirrors Are Unclear on Rainy Days?
2 Answers
Install rain guards on the rearview mirrors to block water on the windows, keeping both the mirrors and side glass clear. Simply spray soapy water or detergent solution onto the rearview mirrors and let it dry. However, this method has a short duration. Water on waxed surfaces will have greater internal cohesion than adhesion, preventing water droplets from forming. Applying a water repellent to the rearview mirrors can maintain clear visibility. Its main component is silicone oil, which prevents water from adhering to the mirror surface.
It's really annoying when the rearview mirror becomes blurry after rain, and I often encounter this issue while driving. Here are a few practical solutions. First, always carry a clean cloth or tissue with you to quickly wipe the mirror surface when parked, which can immediately improve visibility. If that's not an option, keep a rain repellent spray like Rain-X in your car—it helps water slide off quickly and lasts about a week per application. Second, if your car is equipped with a rearview mirror heating function, turn it on immediately; during moderate rain, the droplets will evaporate quickly, though it may take a few minutes to take effect—safety first. I also prefer adjusting the rearview mirror angle slightly downward to speed up water runoff. Regularly cleaning the mirror and applying a rain-repellent film can also help prevent the issue. In bad weather, drive slower, rely more on the windshield for judgment, and avoid unnecessary lane changes to prevent accidents.
