Generally speaking, the crack of automobile tailgate can't be reshaped. If the iron sheet is cracked and there is no good solution, it may be caused by quality problems. Since the corresponding treatment has been done, it is necessary to weld by means of sheet metal forming machine, and then putty and painting treatment are carried out.

If it is damaged beyond repair, changing the door can directly repair the depression. If the door is cracked, this one can't be repaired, so we can only change it. If it's just deformation, this can reshape the crack, and there's nothing we can do. In this case, just apply for insurance and change doors.

I suggest you go back to the store first and let them check it for you to see the specific maintenance methods and maintenance costs. If there are no cracks and cracks, it's actually nothing. If the bumper is deformed but there is no cut, heat the area and restore its shape, then sand off the paint with sandpaper and repair it.