My car’s master key for my Passat just suddenly stopped operating today, and I don’t believe that the batteries are dead. I read in my car manual how to reprogram or “restart” the key, but I couldn’t get it to work. Does anybody know how to do this? Or is there possibly something else wrong with the key? It’s kind of important that I get it fixed because I only have one master key to get into my car. Any help will be greatly appreciated!