Steering Is Tight problems of the 2013 Chevrolet Silverado

I was traveling at 55 miles per hour on a 2 lane highway. Vehicle became unresponsive to steering and brakes were not working correctly. Peddle had to be pushed all the way to the floor. Got vehicle slowed down and turned off. Once restarting steering was very tight but functional. Similar incident in 2013 resulted in an accident. Several more steering issues since December of 2013. Has been taken in for service and nothing has ever been fixed.