NHTSA Complaint #11606650 — 2016 FORD FUSION

I was driving on the interstate when smoke started from the rear of my car and the engine started sputtering. the vehicle started to slow down in heavy traffic. I was caught in the traffic and could not get off the road, the temperature gauge suddenly moved to the red on the gauge and I could not see the back of my vehicle making it dangerous to pull off the interstate. II had my grandsons with me making this worse. I had the car towed to my fathers garage where he then did a compression test on all four cylinders and found #4 cylinder to be very low reading compared to the other 3 cylinders as well as a pressure test of the radiator which showed a large leak off. I had no warning or messages when this happened