I have the same issue. My steering was clicking and making a screeching noise when I turn the wheel in sport mode or go over a bump in sport mode and does it occasionally in convenience mode. Yesterday the drivers side was sitting low so I took it in assuming it was a strut. A 30 mile drive down the highway and I get to the shop and a pressurized power steering hose busts leaking fluid all over. Have your power steering system checked. My car has 113,000 miles on it and the power steering pump has been replaced twice.