 I bought a 2013 Toyota Sienna in January 2013. It is currently below 2000 miles. . At 60% weight load capacity, the ground clearance goes down to about 5 inches.I get honked on highway asking me to pull over and check-out the rear. The weight load capacity specified in the Toyota User Manual is 1355lbs. Even the dealer is suggesting me go buy an aftermarket solution to fix the issue. This is a true safety issue. DonÂt even think about installing a tow hitch for a bicycle etc. The vanÂs rear suspension is too weak to handle a tow hitch with the weight of bicycles.