2008 SATURN AURA

While I was driving my car going 40 mph down the road the wheel stuck and I couldn't turn or do anything. I had to pull over and reset the car by shutting it off and turning it back on. I've had to do that before when I first started the car and tried to back up in the wheel froze and it wouldn't move anywhere. I went to the garage today and they told me that it's my power steering.