ELECTRICAL DIAGNOSIS OF THE RADIO

Models Affected: 1989 GRAND PRIX MODELS

SERVICE MANUAL UPDATE

Substitute revised pages as indicated below for the 1989 Pontiac Grand Prix Manual.

1989 Pontiac Grand Prix Manual, Pages 8A-150-4, 5, 18 through 27B for pages 8A-150-4,5, 18 through 27.

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.