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Data Reveals Glitch that Led to Tesla Autopilot Crash

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Feb. 18, 2020—On March 23, 2018, a glitch in Tesla's Autopilot technology contributed to the death of Walter Huang in Mountain View, Calif., reported Ars Technica.

Last week, the National Transportation Safety Board released dozens of new documents that provide a detailed understanding of the circumstances of Huang's death. The documents confirm a claim by Walter Huang's family that he had experienced this particular glitch, in this particular spot, multiple times prior to his fatal crash.

As Huang's Model X approached a left exit on US Highway 101, the software apparently got the lane lines mixed up. The car steered to the left, putting itself in the space between the diverging lanes.

While documents confirm the claim of the glitch, it is not comfirmed whether Huang reported the incident to Tesla.

The NTSB's primary evidence is log data that is stored to an SD Card inside every Model X. This data records second-by-second changes in the vehicle's steering-wheel position, velocity, and other variables. 


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