THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 91-350-0B, DATED AUGUST 1990. THE BULLETIN PURPOSE HAS BEEN CLARIFIED. ALL COPIES OF 91-39-0B SHOULD BE DISCARDED.
Beginning with the 1987 model year, Federal law required General Motors to label certain parts, on selected cars with the Vehicle Identification Number or, in the case of the engine and transmission, transaxle, the VIN derivative. The C, D, E, F, H, K, P, V, and W models are affected. Additional models may be affected in future model years. These parts include:
o Engine and transmission/transaxle (to be stamped) o Front and rear bumper assemblies o Hood o Right and left front doors o Right and left rear doors o Right and left rear quarter panels o Right and left front fenders o Rear compartment lid
*Certification label on driver's door qualifies as theft prevention label.
The label containing the Vehicle Identification Number or VIN derivative, as applicable, is required to be permanently affixed to a designated location on the part surface. Replacement parts are also required to have labels affixed to them. Replacement parts labels must be imprinted with the letter "R", the manufacturer's trademark (GM logo) and the detters "DOT"; however, the imprinting or labeling on replacement parts must be done in locations different from those designated for OEM parts.
These federal vehicle theft prevention labels ARE NOT TO BE REMOVED, DEFACED, ALTERED, OR COVERED OVER. They must also be masked prior to any painting, rustproofing, undercoating, etc. The mask MUST then be removed following such operation. Failure to keep the labels clean and readable may result in a liability proceedings for violation of the Federal Vehicle Theft Prevention Act and subject the owner or operator to possible criminal investigation or suspicion of vehicle theft (dealer prep included).
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.