# An ongoing federal investigation into how Tesla Full-Self Driving (Supervised) performs in low-visibility conditions was upgraded this week.

*robotics · news · 2026-03-20 · Gizmodo*

## Key points

- NHTSA upgraded its Tesla FSD investigation to an engineering analysis, possibly preceding a recall.
- The probe focuses on Tesla Vision camera performance in low-visibility conditions for vehicles from mid-2021 onward.
- Nine crashes, including a 2023 fatality, are linked to the investigated FSD system shortcomings.
- A Tesla system update addressing camera degradation was in development following the reported fatal 2023 crash.

**Companies:** Tesla
**Countries:** United States

[Read the full story on Gizmodo](https://gizmodo.com/3-million-teslas-get-one-step-closer-to-a-recall-over-full-self-driving-feature-2000735700)

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