If an intermittent or in-operative center high mounted stop lamp due to a heat distorted socket is encountered in a J-37, A-37 or Buick Reatta, both sockets must be installed using part number 5972532 available from GMPARTS. All service stock of this part uses a new heat resistant material. The production stock was corrected beginning with the following VIN Breakpoints:
Buick JB900864
Oldsmobile: JG307649 J9367993 J2336554
Pontiac: J7544390
Chevrolet: J7163799 JJ187909
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.