After opening tailgate and spamming the "O" button, it breakes and becomes unable to use again. Also, if something stands on its way while opening, tailgate doesn't stop and continue ragardless that the way is blocked, until bending and breaking.
On the screenshot, a self-confident tailgate has tried to open totally, which ended as lethal aftermath.
On the screenshot, a self-confident tailgate has tried to open totally, which ended as lethal aftermath.