We recently purchased a 2011 Journey, with the Pentastar V6, for my wife. I noticed that when the cruise control is set, and you encounter a hill, the speed decreases quite a bit and stays that way. Last night I watched it slow down over 5 mph (8 kph) until we reached the top of the hill. This hill was mildly steep, for a highway, but none of our other vehicles have had this problem. I have noticed the same, though less drastic, on much lesser hills. We have owned many GM and Ford vehicles and have never had this problem. The Fords that I have owned would never slow down more than 1/2 mph on a hill. The GMs would usually lose a couple mph before catching back up. I am sure that this is very annoying to the people behind you.
Has anyone else had this problem with their V6 Journey?