Don't always believe the dealer. I also had a problem of my door locks and interior lights not working. A forum member suggested a blown fuse. I took it into the dealer and suggested maybe he should check the fuses. He came back 10 minutes later statingthe fuses are ok and it needs a new module air pump assembly. I reported this back on this forum and a member suggested changing out the fuse. Guess what it was the fuse and have had no problems ever since. Needless to say my crossfire will never go back to that dealer.