Why Buy a Genuine BMW Replacement Key? BMW key fobs are made with security in mind. They only transmit a unique identification signal. This keeps third parties from hacking your vehicle or copying your key. BMWs do not accept key fobs that have been used. They cannot be programmed according https://car-key-reprogramming30394.blogdiloz.com/29553675/a-proficient-rant-about-bmw-car-key