On my 1st long trip in my 2019 Santa fe (Ohio to Fla) I had real issues with the cruise control not maintaining the set speed. It worked good in flat country, but when I got into KY and TN it would drop off 3-5 mph every time I went up a hill. I have never had a car that dropped off that much. Has anyone else had this issue? I travel a lot and this will be a game changer for me.