On [XXX] at approximately [XXX] I was travelling West on [XXX] , between Hamlin and Kimballton, Iowa. I had been driving with my cruise control set at 60MPH, until I caught up to an 18 wheel livestock semi truck. The semi was travelling near 40MPH due to curves in the road in this area. With no traffic coming from the West and an acceptable stretch of passing zone, I decided to pass the semi. As I entered the Eastbound lane to begin my pass, I pressed the accelerator pedal all the way to the floor and accelerated past the semi. As I was completing the pass, the road began to curve to the left, which naturally caused the Jeep to re-enter the Westbound lane, which is what was expected and is what I wanted to do, as I was well clear of the semi. What startled me, actually scared me to death, is when I attempted to steer to the left in order to remain centered in the Westbound lane. When I attempted to steer, the steering wheel seemed to be locked in the straight forward position. I grabbed the steering wheel with both hands and it took pretty much all I had to force the steering wheel to turn left at all. I had to have come within inches of dropping off the shoulder on the right (North) side of the road, while still in the left curve. The steering remained very ‘tight’ and very hard to move much outside of the centered position. I continued driving as there was very little traffic. Upon reaching the town of Harlan, IA I had planned to stop and access the situation. However, when the vehicle speed slowed to somewhere around 30MPH, the steering system corrected itself and began to function normally. I continued to my destination in Omaha, NE without further issue. To say that this event scared me is an understatement. It could not have happened at a worse time and I believe I was within inches of exiting the roadway due to the inability to control the vehicle. I am certain that if my wife or kids had been driving, a crash would have INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FO