Condition, Dealer Action, Vehicles Involved, Dealer Campaign Information

CONDITION

General Motors has determined that a defect which relates to motor vehicle safety may exist in some 1987 and 1988 Buick LeSabre models equipped with Anti-Lock Brake System (JM4). Involved vehicles may have been assembled with low torque of the brake hydraulic unit mounting bolts. This condition could cause increased brake pedal travel and/or poor pedal feel if the attachment loosens. In addition, with time this condition could lead to separation of the brake hydraulic unit from its mounting bracket. Separation would result in loss of brake function and could result in a vehicle crash without prior warning.

DEALER ACTION

To correct this condition, dealers are to replace the hydraulic unit mounting bolts on all vehicles involved according to the instructions in the Technical Procedure section of this bulletin.
VEHICLES INVOLVED

Certain 1987 and 1988 LeSabres equipped with Anti-Lock Brakes (JM4) within the following vehicle breakpoints:

Year Plant From Through and Including

1987 Buick City HH400004 HH554313
1988 Buick City JH400004 JH462063

DEALER CAMPAIGN RESPONSIBILITY

Dealers are to service all vehicles involved in this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership. Whenever a vehicle subject to this campaign is taken into your new or used car inventory, dealers are to take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.

Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer and arrangements made to make the required modification according to instructions contained in this bulletin.