What is the purpose of the small round mirror on the rearview mirror?
2 Answers
1. Observation: It allows the driver to better observe the side of the vehicle and the rear wheels while seated in the car. If there is a vehicle approaching from the blind spot, it can be detected in time. When changing lanes, a quick glance reveals the rear wheels clearly, reducing the risk of accidents. 2. Reversing: For novice drivers, having a small round mirror makes reversing easier, especially for parallel parking, as it helps observe the relative position of the right-side wheels. It effectively helps new drivers develop a sense of the car, particularly during parking and reversing, enabling them to better understand road conditions. More relevant information is as follows: Note: For drivers who frequently drive on mountain roads, rugged terrain, or narrow sections, the small round mirror is also very useful. After installing the small round mirror, the driver can better observe road conditions to adjust the distance between the right side of the vehicle and the road, especially when two vehicles pass simultaneously. In such cases, the small round mirror on the rearview mirror becomes even more noticeable.
I remember driving for over 40 years, and this small round mirror has become an absolute necessity in my driving life. I initially installed it because I always felt blind spots when changing lanes, worrying about missing vehicles approaching from the side. After installation, my field of vision expanded significantly—it acts like a convex wide-angle lens, condensing more of the scene into a small space, allowing me to clearly see tire positions while parking and avoid scratching the rims. Especially during reversing in narrow alleys or parallel parking, it has saved me from hitting walls multiple times. I’ve also noticed that on rainy days or nights with low visibility, it helps slightly in spotting obstacles. Installation is super simple—just peel off the adhesive backing and stick it on. Once accustomed, the image distortion doesn’t hinder judgment. I recommend all drivers, whether seasoned or new, give it a try—minimal cost but substantial safety benefits, boosting driving confidence and peace of mind.
