I have a 2014 RLX. just recently over last 3 months. All the warning lights come on at various times while I'm driving. its like the steering control, hill assist and others, about 5 in all. stopping and restarting doesn't help. I called the dealer and they said there is a sensor in the grill or front of the car that may get clogged.. so I have been taking a water hose on the jet spray to wash the front of my car. it helps for a little bit but in a few days it happens again. Has anyone heard of this and does anyone know of a fix. I wonder why all the sensors go off at once.?? Thanks for your help. Paul