GM Service Manual Online
For 1990-2009 cars only

UNWANTED HORN OPERATION REPLACE HORN PAD NEW P/N

MODELS AFFECTED: 1987 ALLANTE

Some 1987 Allantes built before VIN breakpoint 100602 may experience unwanted horn operation or an over sensitive horn pad possibly leading to inoperative horns. If unwanted horn operation or an over sensitive horn pad is experienced, or diagnosis of inoperative horns leads to horn replacement, replace the horn pad with part number 1637638 (saddle tan) or part number 1637639 (maroon).

To remove the horn pad, lift the horn pad off the steering wheet and disconnect the horn lead and the ground lead from the steering wheel.

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.