Towing vehicle - Event Date: 12 Oct 2016 - 25 Dec 2016

Since your Sienna does not have a factory tow package, but an add-on hitch instead, there are a couple of things to note.

First, the hitch may be rated at 4500 lbs, but the vehicle is still rated at 3500 lbs. That is your limit. A heavier-duty hitch does not increase the vehicle's tow capacity. Second, since it is an aftermarket hitch, you should also get a transmission cooler installed. Third, while not strictly necessary, a heavy-duty alternator would not be bad to install either. Fourth, with this vehicle, a weight-transfer hitch with stability is going to be essential. One of these three should be purchased: Equal-i-zer 4-way stabilization hitch; Fastway E-2 hitch; or Andersen No-Sway weight distribution hitch. There are others also, but make sure it combines sway control with weight transfer.

One other thing that we have found that helps. We added an AeroPlus wind deflector from PurpleLine USA. Another one is the AeroShield by Icon. These improve the airflow between the tow vehicle and trailer. Our experience is that it increases our mileage significantly. This is optional though.

I don't think the Sienna's engine is turbocharged. You will find it works okay on flat land and hills. However, it would probably struggle at higher elevations and mountains. This is not to say it won't work. Just understand that you won't be going up 10% inclines at normal highway speed.

Hello Everyone: