open your trunk, take off the cover that gives access to the right side of the taillights (side opposite from antenna), and see if the code and serial # is printed on a white sticker that is stuck on the back of the cover. That's where I found mine. Or you can look at the left outside of the glove compartment, or a sticker on the hydraulic support rods for your trunk. I know there should be a few other places. If all else fails, get your serial # and go to the dealer with proof of ownership.