The problem turned out to be the tires. I was running Hankook i-Pike winter tires. Standard size. Front and back. When I took the car to the dealership, they could duplicate the issue all day long. They contacted Nissan who had them run a myriad of diagnostic tests. Nothing found. Then...
This same situation has happened to me twice. Once today and once two months ago. Both times I was traveling about 45mph and going around a curve and had let off the accelerator when the car braked hard and turned to the left. I didn't touch the brake pedal either time. I am taking the car...
