Troubleshooting Problems With BMW Keys BMW keys were large black rectangles of plastic. They were put into the ignition to turn on and unlock the car. The digital keys changed everything. But is it possible to hack? You can use a keyfob that is not genuine to activate Comfort Access https://the-key-lab00949.smblogsites.com/30107018/10-tips-for-bmw-key-cost-that-are-unexpected