An inoperative memory six-way power seat system can be caused by a low voltage condition at the module. If the module sees a voltage lower than 10.5 volts, it will become inoperative.
A second faulty condition may also exist. When operating in the manual mode, seat motion will stop, even though switch is still depressed and end of travel is not reached. Reactuating switch will cause seat to begin moving again. All manufacturing and field stock is being modified at this time. All modules with a date code of 2340, or lower, is of the first type and requires modification. This code (2 = year 82, 340 = 340th day of year) is stamped in white ink on the module.
In the event that this condition occurs and a module is not available, the six-way seat can be operated without the memory seat feature by disconnecting the module and reconnecting the wiring without the module in place.
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.