
Rearview mirrors do not need to show the tires. The right rearview mirror should be adjusted outward as much as possible to ensure that while the car body is visible, more space on the right rear side can also be seen. Many cars have a blind spot about 1 meter outside the right rear door. Purchasing a blue-tinted mirror can help expand the field of view. Below are some related details: 1. Rearview mirrors are tools that allow drivers to directly obtain information about the rear, sides, and lower parts of the car while seated in the driver's seat. 2. For the convenience of the driver and to prevent traffic accidents and ensure personal safety, all countries require that cars must be equipped with rearview mirrors, and all mirrors must be adjustable in direction. 3. Rearview mirrors have a field of view issue, which refers to the range that the mirror can reflect. 4. The industry has a concept of three elements of the field of view: the distance between the driver's eyes and the rearview mirror; the size of the rearview mirror; and the radius of curvature of the mirror. These three elements are interrelated. When the distance and size of the rearview mirror are the same, the smaller the radius of curvature of the mirror, the larger the field of view it reflects. When the radius of curvature is the same, the larger the size of the mirror, the larger the field of view it reflects.

When I first started driving, I also thought the rearview mirror had to show the tires to be safe, feeling that way I could better gauge the car's position. But after years of long-distance driving, I changed my mind—it's actually unnecessary to see the tires because the primary purpose of the rearview mirror is to monitor blind spots, like checking if there's a car approaching from the adjacent lane when changing lanes. If the mirror is adjusted to show the tires, it’s positioned too close to the car body, narrowing the field of vision and potentially missing hazards close to the side, such as motorcycles or bicycles, which could lead to accidents if overlooked. Now, I always adjust my mirrors so that only a small corner of the car body is visible, keeping my focus on the road behind. This provides a wider coverage, making lane changes and overtaking much easier. Combined with the habit of quickly glancing over my shoulder, my driving has become more stable. Testing this in congested urban areas or on highways, you’ll immediately notice the difference—it genuinely reduces the risk of rear-end collisions.

As a new driver who just got my license, I used to obsess over whether the rearview mirror should show the tires, thinking it would help control wheel positioning. But in actual driving, I realized this was a misconception. My instructor taught me the correct adjustment method: sit in the driver's seat, lean your head close to the window, and slowly adjust the mirror angle until the car body disappears from the rearview mirror and the tires are completely out of sight, with the focus entirely on the road conditions behind. This minimizes blind spots. At first, it felt a bit unfamiliar, like something was missing, but after driving more, I got used to it. Now I can clearly see adjacent vehicles when changing lanes and park more accurately. It's recommended to occasionally check mirror positions to avoid displacement from vibrations. Driving safety is no small matter—a simple adjustment can prevent major troubles.

Actually, it's unnecessary to see the tires when adjusting the rearview mirrors. The correct method is to sit upright and adjust the mirrors so that the edge of your car body occupies just a small portion or disappears completely in the mirror, with the visual focus entirely on vehicles and pedestrians on the road. This reduces blind spots and makes lane changes safer. If you can see the tires, it means the mirrors are tilted too far inward, so just adjust them slightly outward. This setup also allows you to clearly see headlight signals during rainy days or night driving, helping to prevent accidents.

From years of driving experience, I've learned that seeing tires in the rearview mirror is actually problematic—it distracts you, making you focus only on wheel details while neglecting real risk points like fast-moving vehicles in adjacent lanes. The primary purpose of rearview mirrors is to monitor blind spots for safe lane changes. If tires occupy your visual field, it means your view is narrowed and you're missing critical information. I usually adjust mine so that just a minimal portion of the car body appears at the bottom of the mirror, focusing instead on the traffic flow behind. This setup, when used in conjunction with the interior rearview mirror, provides superior overall coverage—especially on elevated highways with multiple parallel lanes—allowing you to clearly see all movements and reduce accidents. Remember, simplicity in adjustment is key; don't overcomplicate it.

I believe the rearview mirror doesn't need to show the tires, as its core function is to help us monitor blind spots on the side and rear. If the tires are visible in the mirror, the focus shifts to our own vehicle, potentially causing us to miss cyclists by the roadside or overtaking vehicles, which could be dangerous. The correct adjustment method involves a slight tweak in a relaxed seating position, ensuring only a corner of the car body appears at the edge of the mirror, keeping the focus entirely on road conditions. Combined with the use of the interior rearview mirror, this provides a more comprehensive view, making driving safer. This setup is particularly useful in foggy conditions or on winding mountain roads, ensuring foolproof safety.


