What to Do When You Lose Your BMW Keys BMW cars are costly, and they come with sophisticated anti-theft technology. This makes them hard to steal, but it can complicate things when you lose your keys. If you lose the BMW key the first step is to call your dealer. https://carkeyreprogramming51413.mdkblog.com/35867629/the-best-way-to-explain-bmw-key-fob-to-your-boss