Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
A customer may comment about water leaking from the center roof console caused by a mis-adjusted sunroof glass. The sunroof sits too low in the back, lower than the roof line. The water enters at a D shaped cutout in the sheet metal and will carry along the wire harness, located on the right side of the sunroof, to the center roof console.
Adjust the sunroof glass flush in the front with the roof and the back edge 2 to 3 mm higher than the roof line.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
This bulletin is being revised to add Warranty information. Please discard Corporate Bulletin Number 03-08-57-001A (Section 08 -- Body & Accessories).
This bulletin also cancels and supersedes Corporate Bulletin Number 01-08-57-001A. Please discard Corporate Bulletin Number 01-08-57-001A (Section 08 -- Body & Accessories).
Some customers may comment that the second row foot well is wet with dirty water. Water may also travel along the rear door rocker sill plate to the front seat footwell area.
The rear wheelhouse seam may not be sealed properly. Refer to the illustrations above.
There may be a hole in the upper front corner of the fenderwell. Refer to the illustration above.
A horizontal seam on the forward surface of the rear fenderwells may be partially covered with undercoating. A potential exists for water to enter the seam along its entire length, particularly in the area of the radius behind the outer wheelhouse molding. See the illustration for seam location.
Seal the rear wheelhouse using the following procedure.
The following material or equivalent should be used.
12378501 (Canadian P/N 10952233)
Medium Body Seam Sealing Compound Urethane
*Lord Fusor P/N 803
Black Urethane Sealer/Adhesive
Urethane is currently available from GMSPO.
*Call 1-800-234-3876 (ext. 3) for information on where to purchase Lord Fusor.
For vehicles repaired under warranty, use:
Panel, Quarter Trim (Right Rear) - R&R or Replace
Panel, Quarter Trim (Left Rear) - R&R or Replace
Box, Cargo Stowage-Right - Replace
Box, Cargo Stowage-Left - Replace
Body - Reseal