Some 'J' and 'N' vehicles may exhibit a condition where the dash pad bows up between the defroster duct and the windshield. This condition may be repaired using the following procedure.
1. Remove the defroster grille.
2. Loosen the two (2) screws in the defroster opening.
3. Use an awl or other sharp, printed tool to pierce a very small hole in the dash pad as shown in the illustration. The hole should be centered (left to right) in the duct opening, and positioned as shown in view 'A' of the illustration so that the defroster grille will cover the hole when re-installed.
4. Secure the dash pad to the sheet metal lip by installing a clip P/N #22551474 as shown in the illustration. When properly installed, the clip should be positioned so that the wide 'leg' of the clip is under the sheet metal lip and the narrow, pointed 'leg' of the clip is inserted in the dash pad, just above the pad substrate, (backing) material. Refer to the illustration.
5. Tighten the two (2) previously loosened dash pad screws.
6. Re-install the defroster grille. It may be necessary to trim some of the flashing on the bottom of the grille if there is any interference between the grille and the newly-installed clip(s).
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.