[sh30469]

For my Cadenza (also a Premium) I feel is slow down on descent, I wouldn't say active braking but a definite slowing as to not go too fast. If the hill is too steep and the car cannot properly slow itself you should notice that you will go over speed but once you are off the hill and back on level ground once you hit the mark of your cruise speed it will maintain speed again. From what I know there is no active braking with most normal cars (non-radar upscale) and cruise. If you go above a certain speed above the cruise it may even turn off cruise and you have to re-enable it when you get closer to your mark again, just like if you were to floor it or brake you would have to reset cruise.