A Tesla Semi crashed into two vehicles that were stopped at a red light in Nevada last weekend, leading to the death of two people.
The incident is being reported as the first crash involving a Tesla Semi since deliveries commenced this year.
Although the Class 8 electric truck does not come with Tesla’s Full Self-Driving (FSD) package, it comes with plenty of safety tech that should have kicked in before the crash.
Features like automatic emergency braking (AEB) are meant for such scenarios, and questions are being raised about whether the feature functioned as it should have.
Driver May Have Fallen Asleep
According to a statement released by Sergeant Shaun Lee of the , the incident took place on June 28, 2026, at around 0721 hours, when authorities responded to reports of a major incident.
Deputies said that a semi-truck had struck two vehicles and that the driver likely fell asleep behind the wheel. The statement read:
“Deputies from the Lyon County Sheriff’s Office responded to the area of Highway 50 and Traditions Parkway in Dayton, along with personnel from the Nevada Highway Patrol, Central Lyon County Fire Department, and Nevada Department of Transportation, for a report of a major traffic collision.
“Upon arrival, Deputies learned that a semi-truck had struck two passenger vehicles at the intersection of Highway 50 and Traditions Parkway, causing the closure of Highway 50 in both directions. Preliminary statements obtained at the scene suggest the driver of the semi may have fallen asleep.
“This incident is currently being investigated by the Nevada State Police Highway Patrol. Any additional information will be released at their discretion.”
Although the sheriff’s office does not reveal the truck’s make, images of the crash shared by confirmed that the truck was indeed a Tesla Semi.
reported that the deceased were a couple, identified as Sergio “Boo” and Jennifer Villanueva. They were struck by the Semi when they stopped westbound at the red light.
Authorities have not publicly identified the driver or the truck’s owner or operator, and no charges have been announced.
The outlet also reported that this was the first Tesla Semi crash, as deliveries began this year after much delay, and fleet services like DHL and California port drayage operators have received early units.
Did Tesla Semi’s AEB Engage?
The AEB is designed to detect obstacles in the Semi’s path. When it senses a collision, it automatically applies the brakes. The Tesla Semi is factory-equipped with Enhanced Autopilot and shares its camera-based safety hardware with Tesla’s Model 3 and Model Y.
That system supports AEB, which is designed to intervene when obstacles are detected at speeds between approximately 3 mph and 124 mph.
However, it is not known whether the truck’s forward-collision braking behaves similarly to how it does on its cars and whether the Semi’s brakes actually engaged before impact.
If investigators confirm the driver fell asleep, that would likely be the primary cause of the crash. With drowsy drivers causing around 6,000 fatal incidents every year, according to AAA Foundation research, the FMCSA is considering whether to have fatigue monitoring systems in interstate trucks.
While Tesla’s cars have a cabin-facing AI-powered camera that detects yawns or blinks and warns drivers, it is not known whether the Semi has a similar feature.