Tesla’s Full Self-Driving System Draws Deeper U.S. Scrutiny After New Crash Concerns

U.S. auto safety regulators have intensified their review of Tesla’s “Full Self-Driving” system after a new round of crashes raised concerns about how the software performs when visibility is compromised.

The National Highway Traffic Safety Administration (NHTSA) has moved its ongoing investigation into a more serious phase known as an engineering analysis, according to a memo released this week. The agency said the decision followed a review of additional incidents suggesting Tesla’s driver-assistance technology may not consistently respond as expected when cameras are affected by poor visibility conditions.

The probe, which began in 2024, is focused on Tesla’s partially automated driving features marketed under the “Full Self-Driving” name. Regulators are examining whether the system properly detects situations where camera performance is reduced — and whether it gives drivers enough warning before those limitations become a safety risk.

In its memo, NHTSA pointed specifically to concerns that the system may fail to identify or communicate degraded camera visibility in time for a driver to take over safely. That issue is especially significant because Tesla’s advanced driver-assistance functions rely heavily on camera-based perception rather than a broader sensor mix.

An engineering analysis is one of the final steps before regulators decide whether a formal recall or other enforcement action may be necessary. While the move does not automatically mean Tesla will face penalties, it signals that federal investigators see enough evidence to deepen their technical review.

The scrutiny comes at a sensitive moment for Tesla, which continues to promote its automated driving ambitions as a core part of its long-term strategy. The company has repeatedly argued that its driver-assistance systems improve safety when used correctly, but regulators and critics have long questioned whether the branding around “Full Self-Driving” overstates the technology’s real-world capabilities.

Tesla has faced multiple investigations over its driver-assistance systems in recent years, particularly around how the software handles complex road conditions and how much attention drivers must maintain behind the wheel. The latest escalation adds fresh pressure as the company pushes further into autonomous vehicle development and robotaxi plans.

For now, the federal review remains ongoing. But the shift to an engineering analysis makes clear that U.S. regulators are no longer treating the matter as a preliminary inquiry. They are now taking a harder look at whether Tesla’s most advanced consumer driving software can safely handle the situations it encounters on real roads.