Tesla FSD Drives Coast-to-Coast Across Canada Without Intervention

Tesla FSD Drives Coast-to-Coast Across Canada Without Intervention

A team of Tesla owners has completed a continuous coast-to-coast autonomous drive across Canada without any human corrections, marking a significant milestone for autonomous driving in North America.

Participant David Moss (@DavidMoss) announced the successful validation run on X. The vehicle departed from the Horseshoe Bay Terminal in Vancouver, British Columbia, and arrived at the official Tesla Showroom in Halifax, Nova Scotia, exactly 4 days and 21 hours later, covering 3,760 miles (6,051 km).

Zero disengagements over 6,051 km

According to Moss, the entire journey was completed with zero disengagements or human interventions of any kind. Tesla AI chief Ashok Elluswamy acknowledged the feat.

Along the way, the vehicle autonomously merged onto high-speed interstates, adapted to variable weather, and handled construction zones. The software also managed parking at each stop by automatically steering, aligning, and backing into available stalls at Tesla Superchargers without the drivers touching the wheel or pedals.

Powered by the spring firmware stack

The cross-country trip ran entirely on Tesla's newly deployed Full Self-Driving (FSD) V14.3.3, which began rolling out earlier this month with software update 2026.14.6.6. FSD V14.3.3 merged the Spring 2026 Software Update features into the autonomy branch of the firmware stack.

Beyond improvements to path-planning neural networks, V14.3.3 also brought UI and interior cabin updates. Specifically, the software relaxes driver monitoring variables with FSD V14.3.3, reducing the frequency of steering wheel torque reminders and visual gaze prompts.

An expanding record of long-distance autonomy

Earlier this spring, Moss completed a 2,700-mile coast-to-coast FSD trip with zero interventions across the United States, demonstrating that the system navigated from Los Angeles to South Carolina entirely on its own.

Moss also reported reaching almost 13,000 miles of intervention-free FSD driving on version 14.2.

Full Self-Driving (Supervised) officially remains a Level 2 driver-assist suite that requires active human supervision. These multi-thousand-mile, community-validated trips are cited as evidence of increasing software maturity.

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