RideLust reports that the NHTSA has linked Toyota's unintended acceleration to driver error, in all but one case studied. The NHTSA has not released the data, saying only that the study was not yet complete. Further testing, in conjunction with other government agencies such as NASA, will be conducted before the NHTSA publishes their results.
All but one of the cases examined by the NHTSA point to driver error, as event data recorder information shows no application of the brakes, tied to full engagement of the throttle. The single case cited by the NHTSA not linked to driver error was caused by pedal entrapment, and resulted in the death of four people.