TRACTION CONTROL CYCLING (INFORMATION)

SUBJECT: ANTI-LOCK BRAKES AND TRACTION CONTROL CYCLING ON 1993 REAR WHEEL DRIVE FLEETWOODS

The Cadillac Fleetwood Anti-Lock brake and traction control system may activate under various road and/or turning conditions. This is normal since wheel lock up or slip may occur under these conditions.

The Anti-Lock brakes are designed to activate if wheel locking tendency is noted during a brake application. Pedal pulsation is present during Anti-Lock braking as are ticking or popping noises from the brake pressure modulator valve. Variation in pedal height may result when Anti-Lock braking is initiated on bumpy or loose road surfaces.

Traction control is designed to apply the brakes and/or throttle adjuster assembly if a difference in wheel speeds occurs during even slight acceleration. Various road and/or turning conditions may also cause wheel speed differences.

These conditions are normal but may cause some customer comments if they do not understand that various conditions may cause the Anti-Lock brakes or traction control to activate. If a comment of this nature is encountered, an explanation of the system design intent should help eliminate customer concerns.

Customer Satisfaction Cadillac Motor Car Division General Motors Corporation

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.