Troubleshooting Problems With BMW Keys BMW keys used to be large, black plastic rectangles. They were put into the ignition to start and unlock the car. The digital key revolutionized everything. But can it be hacked? Also, can you use a non-authentic keyfob to activate Comfort Access in your BMW? https://carkeyreprogramming75222.blogstival.com/52525354/is-technology-making-bmw-key-fob-better-or-worse