What Causes Poor Visibility in Rearview Mirrors After Rain?
2 Answers
Because after rain, a large amount of condensation accumulates on the rearview mirror glass, which is difficult to evaporate quickly, obstructing visibility. Below are some precautions for driving in the rain: 1. Slow down: Regardless of the road width or surface condition, you should drive slowly in the rain, always paying attention to the distance between vehicles ahead and behind, and be mentally prepared to take various emergency measures. Visibility is low in the rain, and the field of vision is poor. The emergency performance of the vehicle, such as braking distance, will also be reduced. Therefore, it is necessary to slow down in advance, leaving enough time and space to handle situations, ensuring safety. 2. Maintain distance: Driving in the rain with obstructed vision requires paying attention to maintaining vehicle distance, constantly observing the distance between vehicles ahead and behind, and increasing the safety distance. Especially stay away from large vehicles: first, they can block your view; second, puddles that large vehicles can pass through may not be passable for smaller cars, and large vehicles can easily splash water, interfering with the driving of smaller cars.
When I first started driving, the rearview mirror would often get blurry after rain, which was really annoying. The main issue was raindrops directly falling onto the mirror surface, forming a thin film of water or tiny water droplets that obstructed the view. After driving for a few years, some oil stains or dust accumulated on the mirror surface, making it easier for rainwater to stick. I recently learned that the rearview mirror heating function is quite useful—turning it on during rainy weather can evaporate the rainwater. Additionally, wiping the mirror clean with a cloth when parked and regularly cleaning it with soapy water can help reduce water stain problems. Not being able to see clearly through the rearview mirror in the rain can be dangerous, as it may lead to misjudging approaching vehicles from behind. So now, I’ve developed the habit of driving slower in the rain and finding a safe spot to stop and deal with it. Rearview mirror maintenance is also crucial—new car owners shouldn’t overlook regular cleaning.
