LIGHT BRAKE DRAG-STAYS APPLIED (CRUISE SWITCH ADJUSTMENT)

VEHICLES AFFECTED: 1989 S/T TRUCKS WITH CRUISE CONTROL

Some vehicles may experience a condition of light brake drag while driving. These conditions have been found to be more noticeable on vehicles which have cruise control.

This may be caused by improper cruise control switch clip retention. If the cruise switch is not retained properly, the switch may push on the brake pedal and cause the brake to remain partially applied, refer to Fig. 1.

If a vehicle exhibits any of the above conditions, perform the following functional cruise switch adjustment check:

Service Procedure:

1. Depress the brake pedal and press the cruise control switch in until it is firmly seated in the clip.

Audible "clicks" can be heard as the threaded portion of the switch is pushed through the clip.

2. Pull the brake pedal against the pedal stop until the audible "click" can no longer be heard.

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.