Lose Power Steering problems of the 2014 Kia Motor Sorento

1st occurrence: on July 10, 2017, at about 11:30 a. M. , I made a left turn on a city street in las cruces, nm, which took me through an underpass. It was a 'wide' turn and I was probably moving at about 25 mph. About half way through the turn I lost power steering and by brute force, was able to turn my car and avoid the wall of the underpass. Had there been another car to my right, I would most likely have hit it on the driver side. I brought my Sorento to a stop and was able to restart the engine. I am unsure which came first, the loss of power steering or the engine stopping. Later that day, I took the car to the local kia service facility where no problem(s) could be found. I was the sole occupant of my Sorento at the time of this first incident. 2nd occurrence: on July 27, 2017, at about 2:00 p. M. , I made a right turn on a city street in las cruces, nm. Immediately after completing the turn and just beginning to move straight ahead at about 30 mph, I once again lost my power steering. Fortunately there were no other cars in close proximity and I was able to coast into a parking lot, once again using brute force to steer. The engine was not running when I brough my Sorento to a stop, but I was able to restart and drove directly to the same kia service facility. No problems could be found this time either. Though I am not 100 percent certain, I believe the loss of engine power preceded the loss of power steering. My wife was with me when this incident occurred.