What to Do When Car Rearview Mirrors Have Water on Rainy Days?
3 Answers
Solutions for water on car rearview mirrors on rainy days: 1. Install rearview mirror rain guards or covers; 2. Apply soap to the mirror: Rub a wet cloth with soap on the mirror, wait for it to dry, then gently wipe off any residue with a tissue; 3. Use a water repellent: The main component of water repellent is silicone oil, which changes the surface tension of water on the glass to prevent water from sticking to the rearview mirror; 4. Install electrically heated rearview mirrors. Car rearview mirrors reflect the conditions behind, beside, and below the vehicle, allowing the driver to indirectly see these areas. They act as a second pair of eyes, expanding the driver's field of vision. Rearview mirrors are divided into exterior mirrors, lower mirrors, and interior mirrors.
I have plenty of experience dealing with water droplets on rearview mirrors after rain. The simplest solution is to turn on the mirror heating function—the button is usually located with the windshield heater. Just turn it on for a few minutes, and the droplets will evaporate. For cars without heating, you can try a water repellent spray. After applying and wiping it evenly, rainwater will bead up and roll off. A bottle from the supermarket costs just over ten yuan and lasts a long time. In a pinch, rubbing a bar of soap back and forth on the mirror and then rinsing it off can also help prevent water buildup. Another handy trick is installing rain deflectors—these small plastic accessories don’t obstruct your view and keep rain off the mirrors. Also, avoid rolling down your windows too much while driving to prevent rainwater from splashing onto the mirrors. I’ve tried all these methods during the rainy season, and the most hassle-free one is applying water repellent in advance.
Having driven a taxi for fifteen years, I've encountered all kinds of weather. Before setting off in the rain, I always wipe the rearview mirrors clean with a dry towel and then rub a cut potato surface to leave a starch layer that prevents water droplets. While driving, I slightly crack open the window to minimize water splashing, and the rearview mirror heating button is a year-round ally for quick results. If it suddenly starts raining mid-journey, slow down, change lanes cautiously, and rely more on leaning forward to check—avoid sharp turns when the mirrors are blurry. Investing in a pair of ten-dollar rain deflectors is advisable; they keep the mirrors mostly dry in light rain. If visibility becomes too poor, simply pull over safely—safety always comes first. These tips are equally handy for night driving.
