Why is the left rearview mirror wider than the right rearview mirror?

1 Answers
DelPiper
07/29/25 1:02pm
The reason why the left rearview mirror is wider than the right rearview mirror is that when sitting in the driver's seat, you are closer to the left rearview mirror and farther from the right rearview mirror. Method for adjusting rearview mirrors: From the center rearview mirror, you should not be able to see your own car, and the vertical position should be adjusted so that the distant horizon is centered in the mirror. For the left rearview mirror, the correct vertical position is when the left and right positions are adjusted so that the body of the car occupies one-fourth of the mirror's surface. For the right rearview mirror, when adjusting the vertical position, the ground should occupy two-thirds of the mirror's surface. Function of rearview mirrors: When there is an emergency situation ahead requiring sudden braking, observe the center rearview mirror to see if there is a car closely following behind, then adjust the braking force appropriately based on the distance to the car in front. You can observe the road conditions behind you, especially when changing lanes frequently while driving. Before changing lanes, signal with the turn indicator in advance, then check the rearview mirror to observe the situation of vehicles behind you, and change lanes only when it is safe. If a vehicle behind you has already signaled or shows an intention to change lanes, be sure to yield.
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