Depending on the type of body, the attachment points differ.
Front bumper
Sedan
-under the hood take out the caps and Unscrew the screws that secure the top.
-at the bottom of the bumper, Unscrew the screws (spun up).
-turn the wheels to the side.
-in the wheel wells, unscrew the screws that secure the fender liner and bumper corners to the wings.
-we release the latch in the wings.
-with an assistant, pull the bumper forward (look for the wires).
-disconnect electrical connectors (if any).
Hatchback
-under the hood take out the caps that secure the top.
-at the bottom of the bumper, Unscrew the screws (spun up).
-turn the wheels to the side.
-in the wheel wells, Unscrew the screws that secure the fender liner and bumper corners to the wings.
-we release the clips in the wings.
-with an assistant, pull the bumper forward (look for the wires).
-disconnect electrical connectors (if any).
Rear bumper
Sedan
-open the trunk lid.
-remove the lining of the trunk.
-for the skins, Unscrew the four nuts and two screws.
-on the perimeter of the lower part of the bumper, Unscrew the screws.
-unscrew the screws in the wheel arches that secure the fender liner, and the corners of the bumper to the wings.
-with an assistant, pull the bumper back (look for the wires).
-disconnect electrical connectors (if any).
Hatchback
-open the trunk lid.
-in the opening of the trunk, Unscrew the two screws.
-on the perimeter of the lower part of the bumper, Unscrew the screws.
-unscrew the screws in the wheel arches that secure the fender liner and bumper corners.
-with an assistant, pull the bumper back (look for the wires).
-disconnect electrical connectors (if any).