What to do when the rearview mirror is blurry due to rainwater?
2 Answers
You can use soap or dishwashing liquid on the rearview mirror, which can to some extent solve the problem of raindrops on the mirror. You can apply wax: Water on a waxed surface will have greater internal cohesion than adhesion, preventing water accumulation. You can use the rearview mirror heating function: This evaporates moisture on the mirror surface through heating. However, this method has certain limitations—it works slowly and only affects the rearview mirror, as the side windows cannot be heated. You can use the simplest method: Roll down the window and wipe it dry with a paper towel—quick and straightforward. Installing rain deflectors is like putting up an umbrella for the rearview mirror, which works fine for light rain but is ineffective for heavy rain, though it's still better than not having them installed.
Sometimes when I drive in the rain, the rearview mirror gets so covered with water that I can't see anything, which is quite dangerous, especially on the highway. The first thing to do is find a safe place to pull over—don't push through. Most car models have a rearview mirror heating function; pressing a button can quickly dry the water, but make sure the car's air conditioning is on for better results. I also buy some rain-repellent spray from the supermarket and apply a layer in advance, which helps the water flow off faster. Alternatively, I use an old toothbrush to apply some soapy water to the rearview mirror for temporary rain protection. Before every trip, I check the windshield wipers and the air conditioning defogging function—making it a habit ensures I'm never caught off guard. In the long run, regularly cleaning the mirror surface prevents too much oil buildup. Remember, when visibility is poor, avoid sudden turns—safety first. Experience tells me these small steps can solve big problems.
