I purchased a 2015 TLX 4-Cylinder the day before Thanksgiving last year. Since then, it has occasionally hesitated from a stopped position. I press on the gas then a 2 second delay then the car moves. Unless I "gun" it then it moves. The vehicle behind has almost run into to me twice at a stoplight. Usually I have to give it alot of gas so I don't get hit from behind. I have also had the problem, again from a stopped position, of the transmission (I assume) trying to shift into a gear that it can't get into. A big jerk with no increase in RPM'S. Enough for everybody to say, "what the **** was that". That happens after I slowly roll out of a stopped position. I have taken it to the dealer 3-4 times and everytime they say they can't duplicate it and they look at me like I am from outer space. Never hearing of a car doing that before. Today I had an investigator come out and ride with me. Of course it doesn't do anything. It makes me sick that I spent all this money on a so-called luxury vehicle. It does ride amazing once it goes. There is no way out of this rabbitt-hole. I am stuck with this vehicle, or I should say my wife since I got it for her for Christmas. What a joke! I have contacted the National Highway Safety Commission with a compaint since it is dangerous when the vehicle doesn't go. I might have to pursue the Lemon Law here in Washington State. After reading other sites I know I am not the only one experiencing this. Nothing will get done until somebody gets injured or dies then it will take years of litigation. The joke too, is the dealer asks me if it was warmed up. How do you warm a car up without driving it? It isn't a diesel, which I have. It isn't like I am going to start a brand-new luxury car in the driveway and "wait" until it warms up. It has done this both cold/hot. The dealer even had the audacity to ask me if I am using my left foot for the brake. They act like they don't know. I traded in our Infinity for this and never had this problem. In fact I have never had this problem on ANY vehicle I have had. Give me a break Acura. I am making it a point to voice this problem on any site that pertains to the TLX, the Great Little Car that could have been.