Keys For BMW BMW keys are a useful tool to guard against theft and fraud. Due to security concerns only the registered owner of the vehicle is able to buy keys with a code for their BMW. Insert the new fob into the ignition, and set it to position 1. https://carkeyprogramming24912.amoblog.com/how-do-you-explain-bmw-car-key-to-a-five-year-old-52021801