I traveled nearly 2,000 miles with a full load in my van and a pop-up trailer weighing about 2500 lb during the April 13th snow storm from Seattle Washington to Austin Minnesota. I have the tow package with sway control and that definitely came in handy well I didn't experience a lot of ice and snow on the road there was lots of wind and the van stayed firmly on the road which was very nice. We averaged about 23 miles per gallon as I never went over 65 miles an hour given the rating on my trailer wheels. All in all I was thoroughly impressed with the towing capability and handling of the Pacifica.
As the o p stated I to have any electronic brake system that I installed you will need to get your own harness but the wiring is in place and easy to get to once you know where it's at use the Primus IQ from tekonsha and that helped tremendously. My advice is to make sure that you go ahead and follow the manufacturer's instructions on calibrating your brake controller as when I first started and I do not do that I've hardly felt an impact. Setting the right brake pressure made a world of difference.
As the o p stated I to have any electronic brake system that I installed you will need to get your own harness but the wiring is in place and easy to get to once you know where it's at use the Primus IQ from tekonsha and that helped tremendously. My advice is to make sure that you go ahead and follow the manufacturer's instructions on calibrating your brake controller as when I first started and I do not do that I've hardly felt an impact. Setting the right brake pressure made a world of difference.