Unintended acceleration (UA) is defined by the National Highway Traffic Safety Administration in the United States as “the occurrence of any degree of acceleration that the driver did not purposely cause to occur”. UA can be the result of the driver’s foot getting caught around the pedals, objects on the floor causing the accelerator pedal to be pushed down, or, rarely, an electronic malfunction in the vehicle. Brake override is a safety feature that is designed specifically to deal with UA.