Originally Posted by EggRoll
The Toyota Sienna is a very capable tug up to 3,500# and 350# tongue weight
if equipped with the "factory tow prep" package and not just an aftermarket hitch installed, which includes and engine oil radiator, transmission cooler and larger radiator....
The 2015 3red generation Sienna has a 3500/350 rating without any package added. In fact Toyota does not (or did not) offer the supplemental towing equipment for the Sienna so hitch and wiring are aftermarket. The brake and lights
are a bit of a PIA to add but doable and once installed, yes the Sienna does just fine with a FBRV up to about 3000 lbs and not overloaded, taken off road, etc. Earlier Sienna's (generation 1 or 2) might have had a factory tow package of some sort.. IDK.