A few weeks ago, our door lock beep quit working. Doors lock fine (after some double or triple checking to make sure they are locked), but we can't hear a sound to verify the lock. The doors DO beep when they unlock, but no longer for the lock. We took it to the dealer thinking they might have bumped something since the noise quit after some service work, but they were all confused and said it wasn't possible for them to have "bumped" anything. They said we were lucky the smart key was working at all and that we could either pay $180 to have the diagnostic computer figure out the problem (then pay more $$ after that to have it fixed) or just deal with it. Anyone else have this problem? Is it something that can be fixed? Should the dealer know what I am talking about?!