Service Procedure
Service ProcedureConvertible Top Enhancements
Note
If the convertible top has a depression in the top cover material, and the cloth is NOT cut, DO NOT replace the top cover. The depressions can be removed by washing the top cover using a mild soap and a brush to loosen the material. If, however, the top cover is cut or has material threads showing, it will be necessary to replace the top cover. Mark the area of the cut with a paint pen. The top cover will be subject for return to the GM Warranty Parts Center (WPC). Install a new top cover and submit a claim under normal warranty. After installing the top cover, perform all of the repairs outlined in this bulletin.
Note
Perform Repair 1 on both sides of the convertible top.
Repair 1
1. Cycle the convertible top to a mid-open position. To protect against items falling into the interior of the quarter panel, place a shop towel over the opening in the quarter trim.
2. Remove the two screws (1) retaining the headliner corner support to the front headliner corner support bracket and position the headliner away from the bracket.
Note
In the graphic example above, the headliner corner support bracket was shown removed from the vehicle and marked for illustration purposes only. Cut off the portion of the bracket that is marked in white.
3. Using paint or wax pencil, mark the lower section of the headliner corner support bracket for material to be removed as shown above.
4. Use snips to trim away the marked section of bracket material.
5. Remove all sharp edges on the bracket with a file or sandpaper.
6. Using paint or wax pencil, mark the corner support of the headliner for material to be removed as shown in the graphic above. Use the trimmed section of the bracket as a template. Refer to the illustration in Step 5.
Note
Because of build variation of the convertible top, it may sometimes be necessary to cut the lower stitching with a razor blade or Exacto knife in order to access the lower edge of the headliner corner support.
7. Use snips to trim away the lower section of the material on the support.
8. Again, remove all sharp edges with a file or sandpaper.
9. Reposition the corner support to the headliner corner support bracket and install the retaining screws.
10. Put a dab of Kent High Tech(TM) Clear Seam Sealer*, P/N P10200, or equivalent, to seal the edge of the threads (1) where the stitching was cut.
11. Apply the protective tape obtained to the mid-roof linkage (shown above) on BOTH sides of the convertible top.
1. For each location, install a 1.5 inch (38 mm) length of tape from the P/N 22910231 tape kit.
Note
It is very important to not get the different tapes mixed up. The two shorter pieces of tape that are applied to the mid-roof link will not stick to the anodized surface of the front rail.
2. Apply one of the shorter pieces of tape to the larger mid-roof link (1), on each side.
3. Apply one of the shorter pieces of tape to the smaller mid-roof link (2) that is located behind the larger link, on each side.
12. Apply the 3 inch (76 mm) length of tape (3) to the front rail section as shown in the graphic above, on each side.
13. Using a heat gun, apply heat to all six of the tape locations (three pieces of tape on each side). The application of heat aids in wetting out the tape and allows it to take shape to the links for a better overall appearance.
14. Cycle the top and verify proper operation.
Repair 2
Add 3M(TM) Strip Calk(R) P/N 08578, or equivalent, to the left and right folding top cover side rear retainer following the steps below:
Note
Ensure that the vehicle has reached room temperature before this repair is attempted.
1. Cycle the folding top to the mid-open position.
2. Starting at the top, reach behind the folding top cover material/headliner and position a piece of 3M Strip Caulk, P/N 08578 Black (1), or equivalent, to the side rear retainer.
Note
Ensure that the strip calk (1) is positioned as far inboard as possible and is covering the holes (circled above) that run the length of the retainer.
3. Apply the strip calk to the inboard side folding top cover side rear retainer, between the retainer and the top cover fabric, working from top to bottom.
4. Apply an additional piece of the strip calk, as needed, to finish covering the lower holes in the bottom of the retainer.
5. Close the folding top and press the outer fabric cover against the retainer to wet-out the calk.
6. Repeat Steps 1-5 on the opposite side of the fold top.
7. Check for proper operation of the folding top and verify that the condition is fixed.
Repair 3
Re-routing the side tension cable spring will apply more pressure on the top cover material to the side front weatherstrip. Re-route the affected folding top cover side tension cable springs following the steps below. Perform this procedure on both sides of the top cover.
1. Cycle the folding top to the mid-open position.
2. Unfold and pull aside the top cover material to access the side tension cable spring (1).
3. Remove the screw retaining the spring to the #1 bow.
4. Pull the spring through the top cover material.
5. Remove the spring and cable from the current #1 bow routing.
6. Reroute the cable spring through the hole (1) in the top cover material.
Note
The view above is how the cable will look with the cable spring routed through the top cover, rather than the #1 bow.
7. Reposition the cable spring to the #1 bow and reinstall the retaining screw.
Tighten
Tighten the retaining screw to 9 Nm (80 lb in).
8. Cycle the folding top to the closed position.