For 1990-2009 cars

# WARPED INTERIOR TRIM -ADD STIFFENERS TO TRIM PANEL BACK

#### SUBJECT: WARPED INTERIOR TRIM (ADD STIFFENERS TO BACK OF TRIM PANELS)

#### VEHICLES AFFECTED: 1990 PONTIAC TRANSPORT 'UO' MODEL

#### CONDITION:

Interior side wall and sliding door trim panels warped and/or buckled at belt line.

#### CAUSE:

Exposure to sun and heat build up.

#### CORRECTION:

Add stiffeners kit, P/N #10187500 to back side of trim panels as described and illustrated.

1. Remove upper trim panels and place on clean work surface, backside up.

#### IMPORTANT: Sliding door trim panels may have vertical as well as horizontal ribs on back side of substrate. In these cases it will be necessary to slot vertical ribs to fit stiffener to horizontal rib. Refer to Illustration.

2. Using a heat gun held approximately 6 inches from trim panel heat back.

3. Install stiffener kit, P/N #10187500 on substrate horizontal rib. Be sure stiffener is completely seated on rib. Refer to Illustration.

4. Using a pair of locking type pliers (vice grips or equivalent) set at 1 mm when locked, crimp the stiffener at three inch intervals and at both ends. Refer to Illustration.

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.