LOOSE CENTER CAPS TIGHTEN RETAINER SCREWS

MODELS AFFECTED: 1989 RIVIERAS

Some 1989 Buick Rivieras equipped with aluminum wheels may experience a condition of loose and/or noisy center caps. This condition may be caused by one or more retainer screws being loose. To repair this condition use the following procedure:

1. Remove center cap(s).

2. Apply Loctite 301, or equivalent, to all five retaining screws and tighten to 2.7 N.m (2 ft. lbs.).

3. Install center caps and verify proper operation.

If the retainers cannot be properly tightened, the center cap should be replaced.

WARRANTY INFORMATION

Labor Operation Number: T6377 (to tighten or replace one or two center caps) Labor Time: .2 Hours

Labor Operation Number: T6378 (to tighten or replace three or four center caps) Labor Time: .4 Hours Trouble Code: 92

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.