_Incident · Regulatory action_

# NHTSA escalates Tesla FSD reduced-visibility investigation to Engineering Analysis covering 3.2M vehicles

Canonical ID: `ef03feb2-e200-486d-af35-c8812e624700`

- **Occurred:** 2026-03-18
- **Kind:** `regulatory_action`
- **Status (derived):** active
- **Company:** [Tesla](/companies/tesla.md) (id: `bde7c8a1-5d35-449d-93b0-2ac8e4601c16`)

NHTSA upgraded its preliminary evaluation (PE24031) into [Tesla](/companies/tesla.md) Full Self-Driving handling of reduced-visibility conditions to Engineering Analysis EA26002, covering an estimated 3,203,754 vehicles including 2016-2026 Model S, X, 3, Y and Cybertruck. The probe includes nine documented crashes in fog, sun glare, and airborne dust conditions, including one pedestrian fatality. NHTSA suspects Tesla may be under-reporting related crashes due to internal data and labeling limitations.

## Sources (2)

1. **Electrek** · https://electrek.co/2026/03/19/nhtsa-upgrades-tesla-fsd-visibility-investigation-3-2-million-vehicles/ · 2026-03-19
2. **CNBC** · https://www.cnbc.com/2026/03/19/tesla-nhtsa-full-self-driving-fsd-reduced-visibility.html · 2026-03-19

## Common questions

### What happened in NHTSA escalates Tesla FSD reduced-visibility investigation to Engineering Analysis covering 3.2M vehicles?

NHTSA upgraded its preliminary evaluation (PE24031) into Tesla Full Self-Driving handling of reduced-visibility conditions to Engineering Analysis EA26002, covering an estimated 3,203,754 vehicles including 2016-2026 Model S, X, 3, Y and Cybertruck. The probe includes nine documented crashes in fog, sun glare, and airborne dust conditions, including one pedestrian fatality. NHTSA suspects Tesla may be under-reporting related crashes due to internal data and labeling limitations.

### When did this incident occur?

The incident is recorded as occurring on March 18, 2026 on the DEPLOY registry. The date reflects the underlying real-world event, not the registry record's creation date.

### Who was involved in NHTSA escalates Tesla FSD reduced-visibility investigation to Engineering Analysis covering 3.2M vehicles?

The incident is recorded as involving Tesla on the DEPLOY registry. No specific robot model is linked to this incident in the registry.

### Has anyone responded to NHTSA escalates Tesla FSD reduced-visibility investigation to Engineering Analysis covering 3.2M vehicles?

No responses to this incident are recorded on the DEPLOY registry. Operators, manufacturers, or affected parties can submit responses to the editorial team; absence is not a guarantee no response was issued.

### What is the current status of NHTSA escalates Tesla FSD reduced-visibility investigation to Engineering Analysis covering 3.2M vehicles?

This incident is an active record on the DEPLOY registry; no retraction or correction has been issued.


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