If you go to www.nhtsa.gov
and input your i3's VIN, it will tell you if your specific car is affected. If you just put in the model type, the i3 pops up, but at least with mine, when I redo it with the VIN, it is not showing up as having an active recall. I suppose this could change, but I think they have identified all of the affected vehicles.
I was talking with the service manager earlier this week, and he said things can be very specific to an individual model...he got a call on one i3 that was unsold sitting on the lot to replace the passenger's side rear-view mirror. When he got out there and looked, the warning was in Korean verses English. One probably showed up in Korea with an English legend, and they were able to track down the affected vehicle.
If you have not had an opportunity to visit a BMW factory, it is an eye-opening experience. Gone are the days of a string of identical cars coming down the assembly line...each one can have a different set of options, colors, features. The staging of the parts to be installed is all carefully orchestrated so that they all come together at the proper place at the proper time...very little pull a part out of a bin, it's all prearranged. In the case of their ICE vehicles, one might be a sedan, the next a wagon, the next something else, all different colors with different features, and at the end, they all get the proper bits. Quite amazing once you see it in action. I've had the opportunity to see two BMW factories, one in Munich when I did Euro delivery, and one in the States when I retook delivery at the performance center of the same car.