What Functions Does a BMW Key Fob Have? Your BMW key fob probably has many functions. You can use it to do a variety of things, such as unlocking your doors, adjusting your windows and even starting your engine. There are some tricks you may not know about. Here are https://car-key-repairs84450.fare-blog.com/30228696/how-to-recognize-the-bmw-key-fobs-that-s-right-for-you