While turning left at an intersection, the steering wheel locked up. Had to brake, then tried again. It's still locked up. I braked again. Then it released. Thank God I had a left-turn green light, otherwise this could have resulted in a serious accident. I've seen many other complaints about this power steering problem on 2017 Silverados that resulted in accidents and injuries. Why is Chevy not recalling this issue?? I will be taking mine to a Chevy dealership to have this looked at.