The NHTSA first began investigating the claims last January, shortly after Brian Sparks requested the agency recall all Model S, Model X and Model 3 vehicles made during or after 2013.The NHTSA’s Office of Defects Investigation has now determined that all of the crashes involving SUA that Sparks cited were caused by the driver.“There is no evidence of a design factor contributing to increased likelihood of pedal misapplication.The theory provided of a potential electronic cause of SUA in the subject vehicles is based upon inaccurate assumptions about system design and log data.”Tesla had previously denied the claims, calling the petition “completely false” and outing Sparks as a Tesla short-seller.“We investigate every single incident where the driver alleges to us that their vehicle accelerated contrary to their input, and in every case where we had the vehicle’s data, we confirmed that the car operated as designed,” the company said last January."