Do you have the old FOB? If yes, hold it close to the black ring around the ignition. If it starts, your new key needs to be reprogrammed by the dealer. Email Rob at needswings.com, he can explain how that key my not be excepted by the car. You do know about the chip in the FOB, that allows the SKREEM to start the engine? Does the new FOB, lock/unlock the doors?