When the LCD cluster requires service only for bulb replacement, it need not be sent to a repair station. The halogen illuminating bulbs are Dealer replaceable and are available from Dealer parts stock.
Refer to Pages 8C-3 and 8C-4 of Section 8C of the 1984 Corvette Loose Leaf Shop Manual for replacement information.
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.