Today I was on a road trip in my prime which now has 6000 miles on the clock. I had cruise set around 78-80 mph. Twice during this drive when I was behind slower vehicles when I moved over to the passing lane my vehicle accelerated up full throttle and approached 95mph. I touched the brake to stop the acceleration. This happed to me twice over 250 miles. I contacted Toyota USA customer service. Has anyone else experienced this unusual experience. I was in Eco mode. Feet flat on the floor. Both hands on top of the wheel. The adaptive cruise was on. Lane guidance system was on. I used the blinker when changing lanes.