I went to get a new battery for my key today because my keyless entry stopped responding. I get to lexus, buy a new battery and when I go back to my car... it doesn't work. I figure no problem I'll just hold the lock and unlock button because thats what it says in the owner's manual. No go. I think ok, whatever I'll go back inside and ask them whats wrong. I had locked the doors when I got inside my car thinking I had to do it in there. When I went to press the button to unlock my door... nothing. The power locks stopped working. So, I pull into the service center and 3 techs spend 15 mins pressing the lock and unlock button while telling me they have no idea what to do. They cant give me an idea of whats wrong, or a price of repair. So, anyone have some ideas? Im taking the car back to the dealer I bought it from so they can look at it. Im one more problem away from trading this for something more sensible.