ESM UPDATE - PASS-KEY DECODER MODULE (REVISED REPL. PROC.)

SUBJECT: PASS-KEY DEC6DER MODULE (REVISED REPLACEMENT PROCEDURES)

VEHICLES AFFECTED: 1991-92 "C" AND 1992 "H" MODELS

o 1991 Buick Park Avenue/Park Avenue Ultra

o 1992 Buick Park Avenue/Park Avenue Ultra

o 1992 Buick LeSabre

The replacement procedures found in the above mentioned electrical systems manuals contain errors that could lead to confusion when replacing the PASS-KEY Decoder Module.

The following procedures replace the procedures presently found in the manuals on the following pages:

o 1991 Park Avenue/Ultra - page 196

o 1992 Park Avenue/Ultra - page 210

o 1992 LeSabre - page 203

Please update your respective Electrical Systems Manual accordingly.

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.