First, make sure whether you turn a big bend or a small bend.

when turning, first brake to slow down the vehicle speed, and at the same time observe the rearview mirror on the side to be turned, and make sure that there are no pedestrians or vehicles on the rear side. After the vehicle speed is reduced, slowly turn the steering wheel to adjust the body when it is about to turn into a corner. If it is necessary to turn around or make a 9-degree right-angle corner, you need to turn the steering wheel quickly and turn back quickly.

the point is, you must slow down before turning.