My wife's car was doing the same thing and she took it to the dealer that installed it, they said it was the remote and she needed to order another one for $50. I looked under the hood and the fuse they had installed had blown for some reason. It hasnt blown again yet. But anyway that was what was wrong with hers. You might look for a fuse under your hood that is not factory. Ibelive it was a 30 amp. Good luck!!