The turn/hazard module has been relocated on the 1988 Riviera and Reatta. Previous location for 1986 and 1987 was to the upper right side of the steering column. The relocation for 1988 is to the front of the center console between the Cathode Ray Tube Controller (C.R.T.C.) and the fuse panel. Location is not illustrated in the manual.
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.