Tesla Under Enhanced NHTSA Investigation for Full Self-Driving System Fails in Low Visibility and Causes Crashes

Tesla

Tesla - Tobias Arhelger/ Shutterstock.com

The National Highway Traffic Safety Administration (NHTSA), the vehicle safety regulatory body for the Estados Unidos, deepened its investigation into the Full Self-Driving (FSD) system for the Tesla. The measure comes after the identification of nine accidents associated with the technology, including one with a fatal victim. The agency specifically evaluates the degradation detection system’s ability to identify conditions that compromise visibility, such as solar glare or airborne obstructions.

The focus of the investigation is on the mechanism designed to recognize when the vehicle’s cameras lose reliability and alert the driver to take control. Dados analyzed by NHTSA indicate that the system, both in the original version and after software updates, may not adequately detect visibility reductions or issue sufficient alerts in a timely manner. Isso results in situations where the vehicle continues without appropriate intervention until moments close to impact.

The investigation covers around 3.2 million Tesla vehicles sold in the Estados Unidos, including several models equipped with FSD. Essa coverage represents practically all of the company’s recent fleet in the country. Probe escalation may result in mandatory recall or other administrative measures if a security defect is found that affects system performance.

Details of the accidents analyzed

Nine incidents were linked to the reduced visibility detection issue. Dois of them caused injuries to the occupants or third parties involved.

In several cases, the system did not identify conditions that harmed the cameras, such as intense glare or dust in the air. Driver alerts, when issued, only occurred shortly before the collision, limiting reaction time.

Tesla’s analysis of some of these events showed that a specific software update, if installed at the time of the incident, could have influenced the outcome on at least three occasions. Ainda therefore, regulators observed the problem persisting even after improvements were implemented.

Tesla logo – Anton Pentegov/shutterstock.com

Concerns with the detection mechanism

The Tesla’s degradation detection system aims to monitor camera performance in real time. Quando detects limitations, should reduce assistance or require immediate human intervention.

However, NHTSA found that in real-world scenarios of compromised visibility, the mechanism failed to recognize the risk or provide early warning. Isso occurred both in daytime conditions with low sun and in environments with suspended particles.

Recent software updates have sought to improve this functionality, but available data raises doubts about its full effectiveness. The agency continues to examine whether the current design meets the safety standards expected for Level 2 assistance systems.

Impact on future plans of Tesla

Full Self-Driving is central to Tesla’s ambitions to move towards fully autonomous vehicles and robotaxi services. System reliability under diverse environmental conditions is essential to these objectives.

The ongoing investigation may influence the pace of regulatory approvals and over-the-air updates. Reguladores emphasize that FSD requires constant driver supervision, but control transition failures raise questions about overall safety.

Tesla has not yet publicly commented on the latest details of the in-depth probe. The company maintains that the system promotes greater safety compared to traditional human driving.

Regulatory and historical context

NHTSA has been monitoring the Tesla assistance systems for years, with previous probes focusing on other aspects of the Autopilot and FSD. Incidentes in low visibility have already prompted analyzes in previous years.

This specific investigation gained strength with the nine recent cases, which include one fatal case. The agency requests additional data to assess whether software fixes were sufficient or whether broader actions are needed.

Other similar incidents have been identified under comparable environmental conditions. Nesses episodes, the driver’s reaction time was insufficient due to the absence or delay of alerts.

Measures under analysis by NHTSA

The agency assesses whether the system has a defect that poses an unreasonable risk to safety. Caso confirmed, measures such as recall or requirement for mandatory updates may be imposed.

The investigation follows standard protocols, with event data collection, collision reports and technical analysis. The process aims to ensure that assistive technologies meet federal vehicle safety requirements.

NHTSA does not release specific timelines for completion, but emphasizes the priority of protecting commuters and other road users.