GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Enclave - AWD 🢒 Body Repair 🢒 Collision Repair 🢒 Front Compartment Front Side Lower Inner Rail Sectioning

Removal Procedure

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


    Object Number: 1830356 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. Refer to Dimensions - Body.
  5. Note the location and remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.

    6. Note: Do not damage any inner panels or reinforcements.


    Object Number: 1830358 Size: SH
  6. Cut the panel along the front edge of the die mark.

    7. Object Number: 1830360 Size: SH
  7. Locate and drill out all factory welds. Note the number and location of the welds for installation of the front lower inner rail section.

    8. Object Number: 1830362 Size: SH
  8. Remove the damaged front lower inner rail.

    9. Object Number: 1830363 Size: SH
  9. If the inner rail reinforcement is damaged beyond repair, replace the reinforcement as needed.

Installation Procedure

    Object Number: 1830363 Size: SH
  1. Install the inner rail reinforcement as needed.

    2. Object Number: 1830364 Size: SH
  2. Cut the replacement service part along the front edge of the arrow on the die mark.

    3. Note: If the location of the original plug weld holes can not be determined, space the plug weld holes every 40 mm (1½ in) apart.

    Note: Some panels may have structural weld-thru adhesive. Replace the weld-thru adhesive with an additional spot weld between each factory spot weld.


    Object Number: 1830365 Size: SH
  3. Drill 8 mm (5/16 in) plug weld holes as necessary in the locations noted on the original panel.
  4. Drill 8 mm (5/16 in) plug weld holes along the sectioning cut on the service part. Locate these holes 13 mm (½ in) from the edge and spaced 40 mm (1½ in) apart.
  5. Prepare all mating surfaces as necessary.
  6. Apply GM-approved Weld-Thru Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair.

    7. Object Number: 1830367 Size: SH
  7. Position the front lower inner rail to the vehicle using 3-dimensional measuring equipment. Clamp the front lower inner rail into place.

    8. Object Number: 1830368 Size: SH
  8. Plug weld accordingly.
  9. To create a solid weld with minimum heat distortion at the sectioning joint, make 25 mm (1 in) gaps between them. Complete the stitch weld.
  10. Clean and prepare all of the welded surfaces.
  11. Apply the sealers and anti-corrosion materials to the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair.
  12. Paint the repaired area. Refer to Basecoat/Clearcoat Paint Systems.
  13. Install all of the related panels and components.
  14. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  15. Enable the SIR system. Refer to SIR Disabling and Enabling.