The LED part unscrews off, and is replaced as a complete unit. The spoiler needs to be removed to do this. Besides the bolts and nuts that hold the spoiler on, there are numerous "clips", and the clips can be replaced if they(when they) break.
The Following User Says Thank You to BadTrainDriver For This Useful Post:
I was looking through subaru parts online and could only find the whole spoiler. The exploded view didn't show that piece as separate part
Next week sometime I'll stop in at the dealer and see if they can order it.