Warning: The vehicles described in this manual are equipped with a passive restraint system (SRS), also known as an air spring system. Before carrying out work in the area where the elements of this system are located, you should turn off its power, since accidental deployment of the airbags can result in serious injury (see chapter 12).
1. The front and rear bumpers on the described models are a structure made of a plastic facing panel, which is located above a rigid metal beam.
Front bumper
2. If necessary, disconnect the connectors for the fog lights and turn signals.
3. Remove the radiator grille as described in subsection 9.
Chevrolet and GMC cars
4. Remove the bolts and plastic pins that secure the bumper trim panel to the front body panel (see illustrations). Some fasteners are accessible from under the trim, others are accessible from below the bumper.
12.4a. Remove the bolts and pins located on top of the panel...
12.4b....and from below
5. Performing the procedure from under the car, remove the pins that secure the bumper trim to the reinforcing rods (see illustration).
12.5. To remove the bumper trim from the reinforcement bars, remove the pins located underneath
Oldsmobile cars
6. Unscrew the bolts that secure the bumper trim from above to the front panel of the body.
7. Performing the procedure from under the car, remove the pins that secure the bumper trim to the reinforcing rods (see illustration 12.5).
8. Remove the four pins that secure the bumper trim to the air deflector.
All models
9. Disconnect the clips located on each side of the bumper from the protrusions on the body (see illustrations). Pull forward and remove the bumper trim.
12.9. Disconnect the trim clips located on each side of the bumper
10. Unscrew the bolts and remove the reinforcing pins of the bumper trim from the rigid beam.
11. Ask an assistant to support the rigid beam, unscrew the bolts securing it to the frame and remove the element (see illustration).
12.11. Unscrew the bolt located on each side and remove the rigid bumper bar
12. Disconnect wiring and other elements that impede removal and remove the bumper from the vehicle.
13. Installation is performed in the reverse order of removal. Tighten the fastening bolts to the required torques.
Rear bumper
14. Disconnect the reverse light wiring.
15. Remove the pins located at the bottom of the bumper trim (see illustration).
12.15. Remove the pins located at the bottom of the rear bumper trim
16. Remove the screws that secure the bumper trim panel to the wheel arches on each side (see illustration).
12.16. Remove the screws that secure the bumper trim panel to the wheel arches on each side
17. Unscrew the bolts securing the upper edge of the bumper trim to the body and remove it from the car (see illustration).
2.17. Unscrew the bolts located along the upper bumper trim
18. If you intend to remove the rigid beam, remove the spare wheel holder. Disconnect the harness from the trailer wiring connector, turn the connector counterclockwise and remove it from the vehicle body.
19. Unscrew two of the three bolts securing the beam located on each side (see illustration).
12.19. Unscrew the bolts of the rigid bumper bar
20. Ask an assistant to support the beam and unscrew the only remaining mounting bolt on each side. Remove the bumper reinforcement bar from the vehicle.
21. Installation is carried out in the reverse order of removal. Tighten the mounting bolts to the required torque.