GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42058 Frame Adapter Clamp

Removal Procedure

    Caution: Refer to Approved Equipment for Collision Repair Caution in the Preface section.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  3. Notice: When replacing panels that involve servicing stationary glass, refer to GM Service Bulletin no. 43-9-48 before performing any priming or refinishing.

  4. Remove the following panels and components to gain access to the windshield assembly:
  5. • Front fenders
    • Front wheelhouses
    •  Windshield
    • Instrument panel assembly
  6. Visually inspect for damage to the frame rails or wheelhouse mounting areas.
  7. Repair as much of the damage as possible to specifications using three-dimensional measuring procedures. Use J 42058 if pulling and straightening of the vehicle are required. Refer to Dimensions - Body or to Measurements - Underbody .
  8. Remove and relocate wiring as necessary to avoid damage.
  9. Important: Use care not to damage the plenums. If they are damaged during the removal process, they should be replaced.


    Object Number: 181188  Size: SH
  10. Drill out the close-end rivets securing the upper plenum to the windshield frame.
  11. Apply heat to the upper plenum side of the bond area.
  12. Pry up on the panel to remove it.
  13. Apply heat and pry as necessary to break the windshield frame loose from the lower plenum.
  14. From inside the vehicle, remove all hardware attaching the instrument panel supports to the windshield frame assembly.
  15. Remove bolts attaching cross-car brace.
  16. Heat and break loose adhesive bonds.
  17. Remove brace from vehicle.

  18. Object Number: 181187  Size: SH
  19. Remove bolts attaching windshield frame to the front hinge pillars.
  20. Remove damaged windshield frame.

Installation Procedure

  1. Remove all remaining adhesive.
  2. Scuff all bonding surfaces to ensure proper adhesion.
  3. Clean and prepare all bonding surfaces prior to Sheet Moulded Compound (SMC) panel installation. Refer to Plastic Panels in Plastic Panel Information and Repair.
  4. Prime all bare metal surfaces with PPGs DP90, or an equivalent epoxy anti-corrosion primer. Do not top-coat any bonding surface. Refer to Basecoat/Clearcoat Paint Systems in Paint and Coating.

  5. Object Number: 181189  Size: SH
  6. Apply a bead of structural adhesive GM P/N 89020330 (Canadian P/N 8902332) to the bonding surfaces of the new windshield frame and install.
  7. Save any and all brackets, mounting studs, and accessories for transfer to the new rear compartment panel.
  8. Apply a bead of structural adhesive GM P/N 89020330 (Canadian P/N 8902332) to attach lower plenum to windshield frame. Drill holes and use close-end rivets (GM P/N 9418420, or equivalent) to hold plenum secure while adhesive cures.
  9. Apply a bead of structural adhesive GM P/N 89020330 (Canadian P/N 8902332) to the area that the cross-car brace bonds to the center tunnel assembly, and install brace and bolt into place.
  10. Attach all instrument panel supports to the windshield frame assembly service part.

  11. Object Number: 181190  Size: SH
  12. Apply a bead of structural adhesive GM P/N 89020330 (Canadian P/N 8902332) to the upper plenum and install using close-end rivets in factory locations, to hold in place while adhesive cures.
  13. Prime bare metal areas with an approved anti-corrosion primer. Refer to Basecoat/Clearcoat Paint Systems in Paint and Coating.
  14. Important: Do not top coat any bonding surfaces.

  15. Install all related panels and components.
  16. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  17. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.