So I had this little clicker to unlock my car door automatically. I went out to start the car to let it warm up when it was really cold out. I locked it up then used the clicker to get back in. Then, it suddenly dawned on me that this remote wasn't even for my current car. It was for my old one. I find it strange that it works for my current vehicle, but it does come in Handy. I have to think that may not be a good thing though... someone else might be able to use one from a different car to unlock mine. Weird.