IF A REFLECTION OF THE INSTRUMENT PANEL ILLUMINATION ON THE WINDSHIELD IS ENCOUNTERED, A LIGHT SCREEN OVERLAY (LENS) IS AVAILABLE THAT CAN BE EASILY AND QUICKLY INSTALLED TO CORRECT THE CONDITION. PARTS REQUESTS SHOULD BE DIRECTED TO THE TECHNICAL INFORMATION MANAGERS AT THE ZONE OFFICES. THE SCREEN OVERLAY SHOULD BE INSTALLED OVER THE SPEEDOMETER AREA LENS AS FOLLOWS (CARE SHOULD BE TAKEN TO MINIMIZE HANDLING TO AVOID FINGERPRINTING OF THE OVERLAY): DO NOT REMOVE COVER PAPERS FROM OVERLAY UNTIL INSTRUCTED TO DO SO AS FOLLOWS: 1.DETERMINE THE CORRECT INSTALLATION POSITION BY HOLDING THE OVERLAY IN FRONT OF THE SPEEDOMETER LENS WITH THE TAPE SIDE TOWARDS THE SPEEDOMETER. DARTS ON THE FRONT FACE COVER PAPER INDICATE THE 'UP' POSITION. 2.AFTER DETERMINING THE PROPER INSTALLATION POSITION, THE HOLE FOR THE TRIP ODOMETER RESET STEM MAY BE DRILLED IF REQUIRED (SEE FIGURE 1) 3.WITH A SOFT, LINT FREE CLOTH AND A GOOD QUALITY GLASS CLEANER, CLEAN THE SPEEDOMETER/GAS GAUGE LENS AND SURROUNDING AREA. 4.REMOVE THE COVER PAPER FROM THE BACK FACE OF THE OVERLAY, PEEL THE RELEASE PAPER FROM THE TAPE AND CAREFULLY INSTALL THE OVERLAY. THE TAPE SHOULD ATTACH THE OVERLAY TO THE VERTICAL TRIM AT EACH END OF THE SPEEDOMETER/GAS GAUGE AREA. PRESS THE ENDS FIRMLY IN THE TAPED AREAS TO ASSURE A GOOD TAPE ADHESION. AFTER THE OVERLAY HAS BEEN INSTALLED, REMOVE THE COVER PAPER FROM THE FRONT FACE.
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.