What is the optimal adjustment angle for the left and right rearview mirrors?
2 Answers
The optimal adjustment angle for the left rearview mirror is when the road environment occupies most of the mirror surface, with only 1/4 of the car body visible, and the vanishing point of the road should be positioned at the center of the mirror. Here are some relevant details about adjusting rearview mirrors: 1. Adjustment Mnemonic: The mnemonic for adjusting the rearview mirrors of an exam vehicle is: the door handle should be at the intersection of "the midpoint between top and bottom and the one-third line on the car side." This means dividing the mirror into three equal parts horizontally and bisecting it vertically, with the door handle positioned at the intersection of these lines. 3. Precautions: When adjusting the rearview mirrors, the driver should maintain the correct driving posture and perform the adjustment before driving, as adjusting the mirrors while driving is highly dangerous. Avoid touching the mirror surface with your hands during adjustment.
Having driven for many years, I believe the most crucial aspect of rearview mirror adjustment is the safety angle. For the left mirror, I prefer adjusting it while sitting upright, ensuring it covers a small portion of my car's edge—such as seeing the rear wheel arch or a bit of the rear bumper—for clear positioning. However, the main focus is on monitoring the movement of vehicles behind and to the side, minimizing blind spots. The right mirror is adjusted similarly but needs to be angled slightly more outward because the passenger side has a longer line of sight, ensuring better coverage of the rear. This setup is especially useful during high-speed lane changes to avoid hazards in blind spots. I also make sure that no clutter inside the car obstructs the view and regularly check the mirror angles in rainy or nighttime conditions, as environmental changes can significantly impact visibility.
