What to Do When You Lose Your BMW Keys BMW cars are costly, and they have sophisticated anti-theft technologies. This makes them difficult to take however, it can also make things when you lose the key. If you lose a BMW key, the first step is to call your dealer. https://carkeyreprogramming16148.blog2freedom.com/30169332/so-you-ve-purchased-bmw-car-key-cover-now-what