Vehicles with a failed underhood or trunk light bulb on 1989-90 C or H cars should be replaced as follows:
Bulb Trade No. Replace With Bulb Trade No. -------------- ---------------------------
89 105 93 105 1003 105
Please update your 1989 C/H Service Manual page 8B-8 and your 1990 C/H Service Manual page 8B-10.
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.