HUB CAP DISTORTION ON 454 SS NEW CHROME HUB CAP RELEASED

Subject: HUB CAP DISTORTION

Model and Year: 1990-91 C1 454SS (RPO B4U)

Some black Hub Caps, used on the above vehicles, may become distorted by reflected sunlight, focused on the center cap by the wheel. If this condition occurs, it can be corrected by using a chrome hub cap P/N 15635450 in place of the original black hub caps.

SERVICE PARTS INFORMATION:

Part Number Description Quantity ----------- ------------ -------- 15635450 Chrome Hub Cap 4

Parts are currently available from GMSPO.

WARRANTY INFORMATION:

For vehicles repaired under warranty use: Labor Operation: E2027 Use applicable labor time guide for labor hours.

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.