GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


Object Number: 1846699  Size: SH

The front hinge pillar panel is bolted and welded to the side structure and frame rail. The replacement front hinge pillar panel is serviced as an assembly. You must remove and replace the side door opening panel in order to replace the front hinge pillar.

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


    Object Number: 1846716  Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  3. Remove all related panels and components.
  4. Repair as much of the damage as possible to factory specifications. Refer to Dimensions - Body.
  5. Note the location of the sealers and the anti-corrosion materials and remove these components from the repair area as necessary. Refer to Anti-Corrosion Treatment and Repair.

  6. Object Number: 1846690  Size: SH
  7. Remove the bolts attaching the front hinge pillar to the windshield frame.

  8. Object Number: 1846724  Size: SH

    Note: Do NOT damage the inner panels or the reinforcements.

  9. Locate and remove all factory welds from the outer hinge pillar. Note the number and location of the welds for installation of the new hinge pillar.

  10. Object Number: 1846727  Size: SH
  11. Locate and remove all factory welds from the inner hinge pillar. Note the number and location of the welds for installation of the new hinge pillar.

  12. Object Number: 1846732  Size: SH
  13. Remove the damaged hinge pillar.

Installation Procedure

  1. Prepare all welding attachment surfaces as necessary.
  2. Apply GM-approved Weld-Thru Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair.

  3. Object Number: 1846736  Size: SH
  4. Position the hinge pillar to the vehicle using 3-dimensional measuring equipment.
  5. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1846716  Size: SH
  6. Install the outer hinge pillar bolts and tighten to 25 N·m (18 lb ft)

  7. Object Number: 1846690  Size: SH
  8. Install the inner hinge pillar bolts and tighten to 25 N·m (18 lb ft).

  9. Object Number: 1846740  Size: SH
  10. Using a metal inert gas (MIG) welder, stitch weld the inner hinge pillar to the vehicle in the locations noted on the original panel.

  11. Object Number: 1846739  Size: SH
  12. Using a MIG welder, stitch weld the outer hinge pillar to the vehicle in the locations noted on the original panel.
  13. Apply the sealers and the anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
  14. Paint the repair area. Refer to Paint Identification.
  15. Install all related panels and components.
  16. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  17. Enable the SIR system. Refer to SIR Disabling and Enabling.