Driving a 2007 toyota 4runner sr5 v6 4 wheel drive vehicle on a highway at the speed limit of 70 mph. in the left lane (4 lane highway). i slowed down to change lanes entering the right lane, i think applying the brakes to slow down and move over. as i began to accelerate again in the right lane, i let up on the accelerator pedal so as to not exceed the speed limit but it did not come back up when my foot did, and the vehicle did not slow down normally as it should but raced ahead. i quickly looked to see if my floor mat had caused the pedal to stick which i observed it did not. i then applied the brakes to try to slow the vehicle yet the vehicle was still attempting to accelerate. fortunately, i was able to somewhat slow down and guide the vehicle onto an exit ramp to my right, all the while holding down the brake as hard as i could to keep control of the car. i guided it onto the right side of the ramp out of the traffic path and quickly moved ...