Hi it sounds like key is not being recognised,Use the key to open door while pushing the button on fob to lock hold for 10 seconds, then lock door with key while pushing the open button again hold for 10 beconds. You should be able to get into vehicle with fob and it should start, you will have to reset windows otherwise you will get a bleeping noise every time you yurn on ignition, hope this solves your problem,cheers paddy.