After years of anticipation and several delays, Tesla has begun delivering its Semi electric road tractor. But as the vehicle enters everyday operations, it is also starting to be involved in crashes, with the first fatal incident occurring on 28 June 2026 in the town of Dayton, Nevada, where a Tesla Semi rear-ended two vehicles stopped at traffic lights in clear weather conditions. The crash happened not far from Gigafactory Nevada, the plant where Tesla assembles the Semi.
The truck struck two vehicles, including a Volkswagen Beetle, killing its two occupants instantly and seriously injuring a third person, who was airlifted to hospital. According to the preliminary reconstruction given at the scene by the Lyon County sheriff and reported by local media, the driver is believed to have fallen asleep at the wheel before hitting the two vehicles. Investigators found no skid marks, a possible indication that the automatic emergency braking system, or AEB, which is designed to intervene when stationary obstacles are detected, may not have activated. Investigators must therefore establish why it failed to operate, whether because of a malfunction or because it had been disabled by the driver.
This is not the first time a Tesla Semi has been involved in an incident linked to negligent driving. In August 2024, another example of the truck left the road on an uphill bend on Interstate 80 in California after the driver, a Tesla employee, is believed to have fallen asleep. The crash caused the lithium-ion battery to catch fire, requiring as much as 189,000 litres of water to extinguish it and blocking the motorway for hours. That incident remains the subject of a formal investigation by the National Transportation Safety Board, the first conducted by the agency into an electric heavy goods vehicle.
