GM Service Manual Online
For 1990-2009 cars only

Rear End Panel Replacement Outer

Removal Procedure

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


    Object Number: 1380223  Size: SH
  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. Remove all related panels and components.
  4. Repair as much of the damage as possible to factory specifications. Refer to Dimensions - Body .
  5. Locate, mark and drill out the factory welds.
  6. Remove the outer rear end panel from the vehicle.
  7. Caution: Refer to Foam Sound Deadeners Caution in the Preface section.

  8. Note the location and remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair in Paint/Coatings.

Installation Procedure


    Object Number: 1380223  Size: SH
  1. Prepare the mating surfaces as necessary. Inspect for proper fit of the service panel.
  2. On the new panel, drill 8-mm (5/16-in) plug weld holes, as necessary, in the locations noted from the original panel.
  3. Apply 3M® Weld-Thru coating P/N 05916, or equivalent,to all mating surfaces.
  4. Position the service panel, check with 3-dimensional measuring equipment. Refer to Dimensions - Body .
  5. Plug weld accordingly.
  6. Clean and prepare all welded surfaces.
  7. Apply the sealers and the anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair in Paint/Coatings.
  8. Paint the repair area. Refer to Basecoat/Clearcoat Paint Systems in Paint/Coatings.
  9. Install all related panels and components.
  10. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  11. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.

Rear End Panel Replacement Inner

Removal Procedure

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


    Object Number: 1380380  Size: SH

    Important: This procedure describes the removal of the rear end panel outer and rear end panel inner together. As the panels are supplied individually, this procedure contains the replacement of the rear end panel inner only. Refer to Rear End Panel Replacement .

  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. Remove all related panels and components.
  4. Repair as much of the damage as possible to factory specifications. Refer to Dimensions - Body .
  5. Locate, mark and drill out the factory welds.
  6. Remove the inner rear end panel from the vehicle.
  7. Caution: Refer to Foam Sound Deadeners Caution in the Preface section.

  8. Note the location and remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair in Paint/Coatings.

Installation Procedure


    Object Number: 1380380  Size: SH
  1. Prepare the mating surfaces, as necessary. Inspect for proper fit of the service panel.
  2. On the new panel, drill 8-mm (5/16-in) plug weld holes, as necessary, in the locations noted from the original panel.
  3. Apply 3M® Weld-Thru coating P/N 05916, or equivalent ,to all mating surfaces.
  4. Position the service panel, check with 3-dimensional measuring equipment. Refer to Dimensions - Body .
  5. Plug weld accordingly.
  6. Install the rear end panel outer. Refer to Rear End Panel Replacement .
  7. Clean and prepare all welded surfaces.
  8. Apply the sealers and the anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair in Paint/Coatings.
  9. Paint the repair area. Refer to Basecoat/Clearcoat Paint Systems in Paint /Coatings.
  10. Install all related panels and components.
  11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  12. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.