A 2016 video that Tesla (TSLA.O) used to promote its self-driving technology was staged to show capabilities like stopping at a red light and accelerating at a green light that the system did not have, according to testimony by a senior engineer.

The video, which remains archived on Tesla’s website, was released in October 2016 and promoted on Twitter by Chief Executive Elon Musk as evidence that ‘Tesla drives itself.’

But the Model X was not driving itself with technology Tesla had deployed, Ashok Elluswamy, director of Autopilot software at Tesla, said in the transcript of a July deposition taken as evidence in a lawsuit against Tesla for a 2018 fatal crash involving a former Apple (AAPL.O) engineer.

The previously unreported testimony by Elluswamy represents the first time a Tesla employee has confirmed and detailed how the video was produced.