Appreciate all the information. Checked tires right before I left Goodyear Endurance 15 inch, my money is on the weight distribution. My real tow vehicle for my 2720 SL is a 2014 Yukon, but since I only had 30 miles to go, I thought I would just go with the Highlander. Brake controllers on the Yukon not on the Highlander
. I'm planning on towing it back with the Yukon.