Rear Liftgate Binds, Improper Fit, Broken Liftgate Glass (Install Welds and Bumpers)

This bulletin is being revised to add part number information. Please discard Corporate Bulletin Number 06-08-66-011 (Section 08 -- Body and Accessories).

Some customers may comment that the liftgate or the liftgate glass doesn't fit properly. In some extreme cases, the rear liftgate glass may have broken.

A couple of welds may have broken around the upper liftgate hinge(s) or a crack may have formed around the inner two welds. Remove the liftgate and inspect the inner to outer panel welds at the upper hinges.

1. Remove the liftgate trim and electrical wiring from the liftgate.
2. Remove the liftgate and liftgate glass from the vehicle.
3. Straighten the sheet metal at the hinges.



4. Drill four 5/16" holes through the inner panel at the four locations shown in the illustration above.
5. Prepare the sheet metal around the four holes for welding.
6. Clamp the inner and out panel together.

Important: Do not use oxyacetylene welding equipment. MIG WELD ONLY .

7. Weld the crack/four holes that were drilled through the inner panel using the appropriate welding technique.

Important: Prior to refinishing, refer to the GM4901M-D-2006 (English) or GM4901M-D-F2006 (French) GM Approved Refinish Materials booklet for recommended products. The GM Refinish Materials information is now on the GMGOODWRENCH WEB SITE ONLY. Printed books have been discontinued. Steps to the site are as follows:

1. Go to www.gmgoodwrench.com.
2. Click on GM Parts and Accessories link.
3. Click on GM Technical Repair Information.
4. Click on Paint Shop.
8. Clean and prepare all of the welding surfaces.
9. Return the surface to its original contour.
10. Spot paint and clear the area around the hinges.
11. Reinstall the liftgate.
12. Replace the upper two bumpers and inspect the lower two bumpers. Replace as necessary.

For vehicles repaired under warranty, use: