Firstly before reading further, I 100% agree with those members "If it ain't broke don't fix it" so just because there is a TSB, it doesn't need to be done unless you have the concern described.
Also, one thing I have learned about module updates is that they can affect other functionality that you don't know about. For example the Remote start TSB actually seems to cause the "Hot Cabin" issue if you didn't already have that issue... This also relates to getting the problem fixed. If you do have a concern that is directly related to the TSB and you know this. It is sometimes better to include some (not exactly) of the wording of the customer described complaint. Especially if it is a diesel, the dealer may not have come across your issue as of yet, and this makes it easier to find.
Now all of that said, if you want to keep completely up to date, WK2Jeeps.com has an excellent cross reference chart showing which TSBs apply to which years and model/engine notes. I know some very efficient dealers who use this as a reference for their TSBs before even logging into Chrysler.
Jeep Grand Cherokee WK2 - 2011-2016 Grand Cherokee Service Bulletins and Recalls
I read the above chart at least once per week and I have access to the info directly... I find the entire site a "wow, I didn't know that" place.
General link for the site above (and at the bottom of every thread on PC/MAC on the Forums)