Depending on the year of release of attachment is different.

Front bumper

-open the hood.

-wrenched the wheel to the side.

-in the wheel wells, Unscrew the screws holding the fender liner (front part).

-move the wing flaps to the side and Unscrew the nuts that attach the corners of the bumper to the wings.

-Unscrew the screws that attach the lower part.

-with the assistant pulls the bumper (look for wires).

-snap together the connectors of the equipment (if any).

the attachment of the front bumper Pontiac Bonneville (1992-1999)

The scheme of fastening of the front bumper Pontiac Bonneville (1992-1999)

 

 

Rear bumper

⇒Tips for removing bumpers and how to avoid breaking anything..⇐

-open the trunk lid.

-Unscrew the screws that secure the top.

-Unscrew the screws from the bottom.

-in the wheel wells, Unscrew the screws holding the wheel arches and bumper corners to the wings.

-with the assistant gently pulls the bumper (look for wires).

-snap together the connectors of the equipment (if any).

the attachment of the rear bumper Pontiac Bonneville (1992-1999)

Diagram of rear bumper Pontiac Bonneville (1992-1999)

 

How to remove front and rear bumper Pontiac Bonneville (2000-2005)