I haven't been able to use my lane sense because the module for the adaptive cruise control was bad (I assume same module). My second time back to the dealer today for same thing, dropped of at 8am and they had trouble with the installation and didn't have time to program it. I needed my vehicle tomorrow so I agreed to pick it up and bring it back next week. I drove less than a mile and the collision sensor detected a man on the side of the road and slammed on my breaks while I was driving. Had to go back to the dealer so that they could disconnect the collision sensor. This issue started while using the adaptive cruise control, that time I was driving 55 mph when it braked for no reason. I don't know if this is related to your problem, but have the sensor checked, this is definitely a safety issue. I was fortunate that I did not have anyone tailgating me for both instances. I am not a happy Cherokee owner right now. Oh, did I mention that my air conditioner didn't work either and had to be fixed!! Oh, and I needed a software flash update because my outside temperature only works sometimes, most of the time it reads 77 degrees in 90 degree weather. One more, I have the wobble when accelerating and they told me that it is because of my driving habits. I bought it in January and I am on a first name basis with the dealer already.