While stopped at a red light with my foot on the brake pedal only, the power switched from the battery of this hybrid vehicle to gas and started racing, causing the vehicle to accelerate and move through the crosswalk and into the intersection.? Had there been pedestrians in the crosswalk or traffic at the intersection, the outcome could have been tragic. I applied pressure to the brake which did not readily stop the vehicle until it had crossed into the intersection. Once the engine stopped racing and the car has come to a halt, I pulled the vehicle to the side of the road and tested it to determine if I could still drive it. I reported the problem to the dealer and they kept the vehicle for 2 days. I could feel the difference in the way the loaner vehicle performed. They indicated the problem was fixed although no other information was disclosed. Without reading the receipt, I drove the vehicle again, constantly alert to the problem and when the engine started racing and the vehicle started moving forward. I lifted my foot off the brake and kept slamming it against the brake pedal to stop the vehicle. I was recovering from an ulcer on the bottom of the second toe of my right foot which started bleeding leaving a wide hole on the underside of my toe. I reported this to my podiatrist who scheduled me for an emergency appointment. The phalanges in that toe were had been demolished by the force applied. The tendons had separated and the toe could not be salvaged.