GM Service Manual Online
For 1990-2009 cars only

The bumper systems are installed with the body color bumper and the general bumper according to the vehicle grade.

The bumper systems are designed to sustain a collision into a fixed barrier at 4 km/h (2.5 mph) without damage. After absorbing the energy of a collision, these bumper systems restore themselves to their original position. Both the front and the rear bumpers feature an internal foam energy absorber and a polymer fascia cover. The front bumper consists of the bumper fascia and the impact bar. Remove the fascia before removing the impact bar. The rear bumper consists of the bumper fascia and the bracket. Removal of rear bumper brackets can be possible without removing the bumper fascia.