That is very nicely done. Noticed a couple places where a slight adjustment was in order, though. I moved the info about the Series II UIM failure into the common problems area, and clarified the Series I / Series II transition, by moving one sentence.
Other than that, the guy did a truly excellent job.
actually, if you look at their profile, you'll notice they are apart of an automotive wikipedia thing and he has contributed to a BUNCH of automotive articles, since he didn't add any data, I think its safe to say that he is just part of a large cleanup project.