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A Washington state Tesla owner has secured a place in automotive history after completing what he says was the first fully autonomous drive across the United States, covering nearly 2,700 miles without a single manual intervention.

David Moss, a Tesla owner from Tacoma, detailed the journey in a viral post on X, describing a coast-to-coast trip completed entirely using Tesla’s Full Self-Driving software.

“I am proud to announce that I have successfully completed the world’s first USA coast to coast fully autonomous drive!” Moss wrote.

According to Moss, the drive was completed using Tesla’s FSD version 14.2, with no disengagements at any point during the journey, including while parking and charging.

“This was accomplished with Tesla FSD V14.2 with absolutely 0 disengagements of any kind even for all parking including at Tesla Superchargers,” he said.

The journey was made in a stealth gray Tesla Model 3 equipped with FSD v14.2.1.25, Tesla’s latest iteration of its self-driving system, which allows users to track how many miles are driven autonomously. The software, released earlier this month, offers smoother and more human-like driving behavior, though it still requires driver supervision.

Moss began the trip at the Tesla Diner in Los Angeles and drove 2,732.4 miles to Myrtle Beach, South Carolina. The cross-country drive took two days and 20 hours and passed through 24 states. Moss shared a detailed map of the route and documented nearly 30 charging stops along the way.

He emphasized that the system encountered no serious issues during the drive, noting in comments that there were no close calls or safety concerns throughout the trip.

The feat extended beyond the single journey. Data from the FSD database and a community tracker showed that Moss completed 10,638.8 miles using Full Self-Driving without ever taking control of the vehicle, according to Teslarati.com. His Tesla account indicates the vehicle was the first to surpass 10,000 autonomous miles without interruption.

Members of the Tesla community praised the achievement, noting that it came 122 years after Horatio Jackson and Sewall Crocker became the first people to drive an automobile across the United States, a trip that took 63 days from San Francisco to New York.

“We are now living in an era where crossing the American continent by autonomous driving is possible,” one Tesla shareholder wrote.

Tesla CEO Elon Musk also responded to the milestone, reposting Moss’s announcement on X with a brief reaction: “cool.”

The achievement comes as Musk continues to push forward with autonomous driving technology. Earlier this year, Tesla launched a limited robotaxi service in Austin, Texas, using modified Model Y vehicles equipped with Full Self-Driving software, and Musk recently said the vehicles were being tested without safety monitors in the front seat.