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Tesla Full Self-Driving system fails to stop at active railroad crossing, dashcam video shows

An auto journalist reported manually braking his vehicle running software version 14.3.7 to avoid an oncoming train.

The short version

  • Auto journalist Lei Xing released dashcam footage showing a Tesla using Full Self-Driving (FSD) version 14.3.7 failing to yield at an active railroad crossing.
  • Xing reported having to manually apply the brakes to avoid collision with a passing train despite activated flashing crossing lights and sounding horns.
  • The incident adds to a broader pattern of reported railroad crossing failures that have drawn scrutiny from U.S. senators and an ongoing federal investigation into FSD covering roughly 2.9 million vehicles.

Key facts

  • Dashcam video posted by auto journalist Lei Xing shows a Tesla on FSD software version 14.3.7 approaching a railroad crossing at 9 mph without stopping despite active flashing lights and an approaching train.[Electrek]
  • The vehicle's driver stated he was forced to brake manually to stop on the tracks and prevent being hit by the train.[Electrek]
  • NHTSA opened an investigation into Tesla's FSD in October 2025 following 58 reported crashes, an inquiry that has expanded to cover roughly 2.9 million FSD-equipped vehicles.[Electrek]
  • Senators Ed Markey and Richard Blumenthal previously urged regulators to explicitly investigate FSD performance at railroad crossings.[Electrek]

What remains uncertain

  • Tesla has not publicly stated what caused FSD version 14.3.7 to fail to yield at the railroad crossing.[Electrek]

Sources