Power Steering Pump problems of the 2015 Hyundai Elantra

This is our second new Hyundai Elantra, model year 2015. After about 16,000 miles, we noticed a "glitch" that seemed to be occurring at higher, but modest speeds (40-65 mph). The smooth steering-wheel range of motion that we are normally used to seemed to change at road speeds, exhibiting a point where minor l-r steering-wheel adjustments were stiff, almost like a "detent" in a normal smooth range of motion. Researching this behavior, I also found comments on the net that were described as "sticky" steering with 2012 model Elantras. . . Seemed like a good descriptive term. The problem was not solved by an wheel alignment last week, but a re-visit to the dealer today and discussion with their service manager, suggested that there may be a steering assist-pump servo issue which has been known to be associated with the symptoms. There was a discussion with the svc manger of a replacement of the steering column assembly. I would like to believe that that action will solve the matter.