A Model S instrument panel illustrates the road ahead using Tesla's Autopilot technology prior to the company's 8.0 software update. The National Highway Traffic Safety Administration ended a six-month review of Tesla's Autopilot system spurred by a fatal Florida crash and other incidents involving the semi-autonomous driving feature, finding no specific flaw in the technology and taking no action against the carmaker led by Elon Musk. "Our investigation was thorough, evaluating every aspect of the Tesla Autopilot system including the automatic emergency braking system," Bryan Thomas, NHTSA's communications director, said in a conference call on Thursday. "Our investigators have concluded that a safety-related defect trend has not been identified and further examination is not necessary at this time." Along with the May 7 crash that killed 40-year-old Joshua Brown who was using Autopilot when his car slammed into a truck that crossed his path on a divided highway near Williston, Florida, NHTSA investigators also reviewed a rollover accident that injured a Tesla owner inPennsylvania in July, Thomas said.