I had that same problem when I got my GXP. Remote start didn't work either. I made the dealership replace the key fob. =]
Lucky u lol I wish they'd mine now
http://www.grandprixforums.net/my-06-gp-gxp-72403.html OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>