How to Reprogram BMW Keys

1. Get in your vehicle and shut the doors. Insert the key into the ignition and turn it to the ON position (without cranking). Hold it for two seconds, then turn the ignition off and remove the key.
2. Hold down the unlock button and quickly press the lock button three times.
3. Release the unlock button. The door locks will flash, signaling that the programming is complete.
4. Place the key in the ignition and toggle between ON and OFF to finalize.