Added the Durango Limited.
Looking back at the Stand-Alone list, I would have thought it would be much more filled out with LCARs, GXARs, and even a few more PCARs. In reality I guess not so much. That said, I've personally yet to get a GM car where OnStar wasn't active, even a 22k '13 Cadillac ATS (with 22k miles) in April of this year from LAX.