I have a 99 and on startup my DIC has a little winshield w/wiper icon that comes on in the hood area of the DIC I am pretty sure the trunk one comes on too, but as long as they work when you need them to I would not worry about the startup test, but if it really bothers you a replacement one is about $250-300. (thats why I said unless it really bothers you. Mine went totally out due to a short and had to get it replaced. Still need to replace the HUD also got fried...really sucks at $800 local dealer price)
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Jeff W
"It can't out run Motorola, but it sure comes close!!!"
99 Black GTP Sedan:
Fr & R STB, Thrasher CAI,GM W-body (police) auxilliary tranny cooler, custom 3" exaust to dual 2.5" inlet/outlet mufflers, U-bend replacement, xenon headlights reflective GTP and lower Rocker GRAND PRIX badging, red custom front grilles, 180* stat, Pontiac valve stem caps, red neon light behind front grilles, red custom under hood cross braces