A Tesla running the latest version of “Full Self-Driving” failed to stop at an active railroad crossing this week and nearly drove straight into a passing train, according to the driver and as evidenced in dashcam footage.

The kicker: it was running FSD v14.3.7, the newest build Tesla has released — and it’s at least the third time this year that Electrek has documented FSD trying to drive a Tesla into a train.

Lei Xing, a well-known auto journalist and co-host of the China EVs & More podcast, shared dashcam video of the incident on X Tuesday.

Would have been ran over by the rain had I not braked🤣🤣🤣
The rail road crossing lights were flashing and the train horns were pretty loud. #FSD pic.twitter.com/1xZ454EbMj

“Would have been ran over by the [train] had I not braked,” he wrote. “The rail road crossing lights were flashing and the train horns were pretty loud.”

The video shows the Tesla approaching the crossing at 9 mph with the “Self-Driving” indicator active. The crossing signals were flashing and the train was audible and visible, but the car only slowed down before attempting to cross right when the train was coming. Lei braked manually to avoid ending up on the tracks.

When asked directly which software version the car was running, Lei confirmed it was 14.3.7 — Tesla’s most recent FSD release, currently rolling out to AI4 vehicles.

That detail matters. 3 earlier this year with release notes that specifically claimed improved handling for “rare and unusual objects extending, hanging, or leaning into the vehicle path” — the kind of language that should cover a lowered gate or a moving train.

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