General Motors passenger vehicle bumpers are designed in
order to withstand a collision into a fixed barrier at 2.5 mph (4 km/h).
After absorbing the energy of the collision, the energy absorbers rebound
to 80-90 percent of their original position. The energy absorbing
capability of the front bumper and the rear bumper systems is achieved
through a foam type energy absorbing structure in each bumper.
The following components are made of thermo plastic olefin or urethane:
• | The front bumper fascia |
The thermo plastic olefin and urethane perform the following functions:
• | Return to the original shape. |