Hope this helps. We too have been looking seriously at the 2014 Jeep (Summit model) for towing behind our 42 ft Signature. At the moment still using our 2003 Acura MDX which has 310,000 km and not caused us a moment of grief! I would buy another in an nanosecond but unfortunately after 2003 the MDX's were not flat towable. Thus our search for a replacement.
We loved the new 2014 Jeep Grand Cherokee.....it looks great, significantly upgraded interior, all the newest technology, new 8 speed trans, quiet and comfortable and still outstanding off road capabilities. Price in Canada for the Summit (V-6) pushing $56,000 plus tax.....and this with the Chrysler Advantage Programme pricing. Diesel available (soon) would push the price to $62,000. Loved the car and would have jumped to a deal but decided to do some due dillegence first. As I researched the Jeep GC it quickly became clear this vehicle was not ready for prime time. Chrysler has a legacy of poor QC and a US dealership network that seems disinterested and incapable of dealing with and fixing issues on customers' cars. The dealership situation in Canada seems not to be nearly as bad. Just check out all the Tech Service Bulletins and TTF's that have been issued....many fixing the previous fix.....quite unbelievable and unacceptable. There is a really good web site dedicated to Jeep owners......www.jeepgarage.com.......check it out if you are considering a 2014 Jeep GC.....will likely save you a lot of grief and $$$$!
My advice would be to at least wait until all problems with this vehicle have been identified and fixed. Otherwise you'll be rolling the dice big time on reliability. As MH travelers we don't want to be having toad issues while miles away from our selling dealer and home base...there are always lots of other issues to deal with while on the road.....don't need any more when it is entirely avoidable. Chrysler is now producing what they are calling 2014.5 models but any research will show that problems persist. Personally I have decided to wait and see if things get turned around with this vehicle before making any final decisions. I am going to give the diesel a try in the spring and go from there. I continue to follow the user experiences closely and to be honest I'm not hopeful and as with the introduction of most major model changes, the first year is generally one to avoid. In the meantime I'm awaiting FMCA's list of 2014 towables to see what other options exist. Best of luck to all!