The contact owns a 2012 Honda Pilot. The contact stated while driving at 32 MPH and pulling into a parking lot, the vehicle accelerated unintendedly. The contact depressed the brake pedal and the vehicle stopped. There was no warning light illuminated. However, the failure reoccurred the next day. The vehicle was taken to the dealer where it was diagnosed that the vehicle was operating as designed. The contact stated that the ECO was engaging, causing the vehicle from dropping from number six (6) cylinder to number three (3) cylinder. The contact stated upon pulling into the car wash and depressing the accelerator pedal, the vehicle accelerated unintendedly. The contact depressed the brake pedal but it failed to respond and went all the way to the floorboard. The contact turned the steering wheel to avoid a pedestrian. The contact drove sideways and crashed into a building. The air bags did not deploy. The contact was unsure whether he sustained injuries. A police report was filed. The vehicle was towed to a tow lot. The dealer was notified of the failure but provided no assistance. The manufacturer was not notified of the failure. The failure mileage was approximately 158,000.