Just wanted to add that the 2015/2016 QX Models are rated for 5,000lbs which is a pretty decent standard rating.Short answer is no, you shouldn't be concerned about this. The QX tows up to 3,500 lbs.
Towing does put additional strain on the motor and transmission (just like stuffing 7 adults inside). Take it easy if you plan to travel at high altitudes.
Nope -- as the others have said, no problem.I'm wondering if towing a small trailer carrying a couple of kayaks would hurt anything. I'll be traveling about 1200 miles round trip. All together the trailer loaded only weighs in around 350-400# if that.
Should I be to concerned about this?