What are the reasons for pressing the dotted line during parallel parking?

[TaylorAnn]

When reversing into the parking space, the speed is slightly too fast, the car body is not properly aligned, the rear wheels have already pressed against the rear line of the car body, or the car body has touched the line. Precautions: 1. When reversing, look at the right rearview mirror. When line 1 disappears from the right rearview mirror, turn the steering wheel fully to the right while driving slowly and look at the left rearview mirror. 2. When the intersection of lines 3 and 4 appears in the left rearview mirror, turn the steering wheel two circles to the left while driving slowly, and continue to observe the left rearview mirror. 3. Before reversing into the parking space, ensure that the car body is about 30 centimeters away from the right line. When reversing into the parking space, as soon as the right rearview mirror covers the right angle edge, immediately turn the steering wheel fully. When you see the right angle edge at the rear of the car body, straighten the steering wheel. When the left rear wheel is about to enter the parking space, immediately lock the steering wheel and slightly reverse to adjust the car body. At this point, the left side line is basically parallel, and the rear of the car is parked just in front of the side line at the appropriate position.