Bought two 2019 Sorento SXLs and both have same problem with stumbling hesitation between 25-55 mph when accelerating or going up inclines. Dealer says it’s a solenoid in new 8 speed tranny and all do it. Very frustrating for intown driving. Called Kia and they just referred me back to dealer. Love the car other than that. 26.5 mpg on 2600 mike trip from VA to FL and back. Mostly I95 at 75-80 mph.