GM Service Manual Online
For 1990-2009 cars only

INDICATOR HOUSING DISTORTION REPLACE WITH LISTED BULBS

THE HEAT GENERATED BY THE COMBINATION OF BOTH HIGH BEAM AND SHIFT INDICATOR BULBS BEING IN THE 'ON' POSITION FOR AN EXTENDED PERIOD OF TIME, CAN RESULT IN DISTORTION OF THE SHIFT INDICATOR HOUSING. FOR THIS REASON, IT IS RECOMMENDED THAT WHEN REPLACING THE INDICATOR HOUSING OR BULBS THAT THE CANDLE POWER OF THE BULBS BE REDUCED BY 1 CP. 1.HIGH BEAM INDICATOR BULB. REDUCE FROM TR194 (2 CP) TO TR161 (1 CP) 2.SHIFT INDICATOR BULB. REDUCE FROM TR168 (3 CP) TO TR194 (2 CP)

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.