CarComplaints.com Notes: Kia really changed the design of the Sorento in the 2011 model year. Instead of a truck-like body-on-frame more capable of offroad adventures, the newest Sorento is a unibody construction and is much more crossover than sport utility. The changes brought a whole slew of problems, including a frustrating problem where the door that won’t open. Is it too late to go back?