I think you will need to call OnStar hotline and have it updated, i was talking to the a week ago and mention about the oil change reminder thingy..
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Sup. Blu H3/DvD Navigation+DvD Changer/Rear CCD IR Camera/ SplashGuard, LocKing Billet gas cap, 4" Step Nerf Bars/Underbody lightning, and adding.. 
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