Windnoise at Base of Windshield (Seal Sheet Metal Seams)

This bulletin is being revised to add model years and models. Please discard Corporate Bulletin Number 02-08-58-005A (Section 08 - Body and Accessories).

Some customers may comment on a windnoise from the base of the windshield (right and/or left side). The concern is most apparent while driving in a crosswind.

This condition may be caused by improperly sealed sheet metal seams in the cowl.

Apply seam sealer to the sheet metal seams just below the lower corners of the windshield.

1. Remove the air inlet grille. Refer to the Air Inlet Grille Panel Replacement procedure in the Body Front End Sub-section of the Service Manual.



2. Locate the sheet metal seams at the base of the windshield on both sides of the cowl. Refer to the dotted line in the illustration above for the location. Left side shown. Right side typical.
3. Apply Medium Body Seam Sealing Compound, P/N 12378500 (in Canada, P/N 10952233), or equivalent, as required, to the sheet metal seams on both sides of the cowl.
4. Reinstall the air inlet grille. Refer to the Air Inlet Grille Panel Replacement procedure in the Body Front End Sub-section of the Service Manual.

Parts are currently available from GMSPO.

For vehicles repaired under warranty, use:

Important: Saturn Retailers Only : Do NOT claim GM P/N 12378500. It will be necessary to sell Medium Body Seam Sealer to the CSO as "material" using net item code "M". Claims received in the amount of $2.50 for this part will be accepted. Claims exceeding the amount of $2.50 will be returned with the Return Reason 143 - Material/Reimbursement > Maximum Allowed.