What is the standard for adjusting rearview mirrors in Subject Three?

[SanBrooke]

In Subject Three, the rearview mirror should be adjusted so that the door handle is at the intersection of the "upper and lower dividing line and the one-third line on the side near the car." The left and right positions should be adjusted to the left edge of the mirror. Generally, you should not see yourself in the central rearview mirror, while the up and down positions should place the distant horizon at the center of the mirror. Function of rearview mirrors: Car rearview mirrors reflect the situation behind, beside, and below the car, allowing the driver to indirectly see these areas clearly and expanding the driver's field of vision. Classification: By purpose, the exterior rearview mirrors reflect the rear and side of the car, the lower rearview mirrors reflect the front and below the car, and the interior rearview mirrors reflect the rear of the car and the interior situation. Different purposes result in different mirror structures. Generally, there are two types of rearview mirror surfaces: one is a flat mirror, which, as the name suggests, has a flat surface and provides an image of the same size as seen by the naked eye. This type of flat mirror is commonly used as an interior rearview mirror. The other is a convex mirror, which has a spherical surface. Its image is smaller than seen by the naked eye but has a larger field of vision. This type of convex mirror is commonly used as an exterior rearview mirror and a lower rearview mirror.

[Kaylee]

Regarding rearview mirror adjustment, based on my years of driving experience, the standards for the Subject 3 driving test are crucial. The left rearview mirror should be adjusted so that the horizon is roughly in the middle of the mirror, with the side of the car occupying only about a quarter of the mirror surface. This ensures a clear view of the left lane and vehicles behind. The right rearview mirror should be set at a similar angle, but some recommend reducing the car's proportion even further—to about one-fifth—to minimize blind spots when turning or changing lanes. The interior rearview mirror simply needs to be aligned with the center of the rear window, ensuring the entire rear windshield is visible. During the test, the examiner will quickly check your adjustments. Failing to meet the standard or neglecting blind spot checks may result in immediate point deductions or failure. I’ve made it a habit to adjust my mirrors before driving to prevent rear-end or side collisions, especially in school zones or busy urban areas where clear visibility enhances safety.

[DeAndrew]

I just passed the third driving test, and adjusting the rearview mirrors is the most basic preparation step. Our instructor taught us: the left rearview mirror should be adjusted so that the horizon is in the middle of the mirror, with only a small part of the car body visible, about 20% of the width, so that blind spots can be easily seen when changing lanes during the test. The right rearview mirror is similar, but it should be adjusted further outward. I usually adjust it so that the edge of the car body is almost invisible, covering the right motorcycle or bicycle lane. The interior rearview mirror should be positioned straight, aligned with the rear window, and not blocked by the headrest. During practice, I often use a trick: adjust the mirrors while sitting naturally in the driver's seat without leaning forward, which helps confirm if the angle is correct. If the mirrors are not adjusted properly during the test, the examiner will immediately point it out, affecting the score, so it's necessary to simulate the test steps frequently.

[DiIker]

When teaching family members to drive, I always emphasize that the standard adjustment of mirrors for Subject 3 is a safety fundamental. Adjust the left mirror to show a small portion of your car's side, with the horizon centered—neither too high nor too low, as improper adjustment can make lane changes dangerous during the test. The right mirror is similar but angled slightly lower to minimize blind spots. The interior rearview mirror should fully cover the rear view. This isn't just a test requirement but a daily driving habit—taking a few seconds to adjust before driving can prevent accidents. For example, on highways, clear mirrors allow smooth lane changes. Don’t forget to check them regularly, as road bumps can shift the mirrors.

[DelGraham]

As a car enthusiast, I've done extensive research on rearview mirror settings. The standard for the driving test (Subject 3) is to place the horizon in the middle of the left mirror with the car body occupying no more than 20% of the mirror surface, maximizing the field of view. For the right mirror, due to its larger blind spot, the car body proportion should be reduced to 10% or even lower for better observation of the rear side. The interior rearview mirror should simply be aligned with the center of the rear window. Before the test, adjust your mirrors in a natural sitting position without bending or tilting your head. I recommend using electric buttons for gradual adjustment rather than forcing manual adjustments to avoid damage. Maintaining these settings during regular driving can significantly improve efficiency, making lane changes easier in urban traffic congestion.

[MaryMarie]

In commuting life, rearview mirror adjustment affects both passing rate in the driving test (Subject 3) and safety. The standard for the left rearview mirror is to position the horizon in the middle of the mirror with a small portion of the car body visible, ensuring a clear view of the traffic flow behind. The right rearview mirror is similar but slightly turned outward to expand the blind spot view. The interior rearview mirror should fully reflect the rear window. During the test, the examiner checks if these angles are properly set, and neglecting them may result in immediate point deductions. In actual driving, I always do a quick adjustment before starting the car. Clear visibility is especially crucial on highways or during rainy weather, and developing this habit can help prevent rear-end collisions.