1. For the interior rearview mirror, adjust the left and right positions until the left edge of the rearview mirror just cuts the right ear of the image in the mirror. This means that under normal driving conditions, you can't see yourself in the rearview mirror, and the up-and-down position is just to put the distant horizon in the center of the mirror.

2. For the left rearview mirror, the up-and-down position is to center the far horizon, and the left and right positions are adjusted to 1/4 of the mirror area occupied by the car body.

For the right rearview mirror, because the driver's seat is on the left, it is not so easy for the driver to grasp the right side of the car body. In addition, sometimes you need to park on the side of the road. For the right rearview mirror, the ground area is large when the position is adjusted up and down, accounting for about 2/3 of the mirror surface. The left and right positions are also adjusted to the area occupied by the car body 1/4.

Extended data:

Disadvantages of traditional rearview mirrors:

1, large blind area. Limited by the mirror area and adjustment angle, the field of view is not wide; Some models that do well in vision, such as Subaru Forester and Honda Fit, try to improve the driver's vision by "slimming" ABC columns and matching larger rearview mirrors. For example, the double curvature mirror technology can eliminate the blind area when turning and double the field of vision;

Anti-glare technology can reduce the influence of strong light from the back car on the driver's line of sight when driving at night. Even if automobile manufacturers add many new technologies to rearview mirrors and constantly improve the blind area of sight, the shortcomings of rearview mirrors can not be ignored. For example, sometimes it will block part of the lateral line of sight; Encountering a car in a narrow road section, reversing into the warehouse, or even entering the automatic car washing area may damage the rearview mirror.

2, the wind resistance is large. There is a technical term for the wind resistance of automobiles called wind resistance coefficient. In recent years, the drag coefficient of cars is around 0.3, and that of cars is as low as 0.23. The influence of rearview mirror on wind resistance coefficient can reach 0.0 1 to 0.03, which actually has a great influence on wind resistance.

Baidu encyclopedia-rearview mirror

People's Network-Will the rearview mirror really be replaced?