2012 and up - Program or Activate or program new BMW Proximity key

Your key has to be pre-coded.
Make sure that this key is facing with the tip of the proximity remote toward the spot on the steering column where it shows key with two arrow marks.
*Hold proxy key to the steering column between the marks.
*Press and Hold brake pedal.
*Press and Hold push start button.
**If the car started right away then we good to go just check the remote for functionality.
*** If on dash show "crossed key" - keep applying brake with your foot, holding the key against that same spot and at the same time just press and hold start button again for a second time(for 5 more seconds) - it should recognize the key this time!
And if it still didn't go thru ... repeat for another couple of times.
Usually, it will take one or two times.
Then you are done.