ELECTRICAL DIAGNOSIS OF THE RADIO

MODELS AFFECTED: 1989 REGALS

SERVICE MANUAL UPDATE

Substitute revised pages as indicated below for the 1989 Buick Regal Manuals.

1989 Buick Regal Manual, Pages 8A-150-1, 17 through 20B, and 34 through 38B for pages 8A-150-1, 17 through 20, and 34 through 38

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.