I was attempting to leave a parking spot when while maneuvering the vehicle it suddenly and unexpectedly accelerated to a high speed into a tree. There is a police report and security video as the incident took place in a hospital parking lot. The truck is totaled and settled but insurance company not interested in liability. My wife and I were injured. I have no idea or explanation for the sudden acceleration. Nobody is investigating if there was a vehicle malfunction or not. I just want it documented somewhere in case it is happening a lot. The crash was violent and occurred from a near complete stop on a clear day with no distractions.