The National Highway Traffic Safety Administration (NHTSA) has advanced its investigation into Tesla's Full-Self Driving (FSD) feature, which affects approximately 3 million vehicles. The agency has transitioned to the "engineering analysis" phase, a crucial step in determining whether a recall is necessary. This phase began in 2024 and is expected to take several months to complete. The NHTSA launched its investigation in 2024 after receiving reports of Tesla's FSD system malfunctioning in certain situations. The agency has been collecting data and conducting interviews with owners and experts. According to the NHTSA, the investigation is focused on the FSD system's ability to detect and respond to pedestrians, cyclists, and other vehicles. Tesla has been working to improve its FSD system, which is currently available in beta testing for select vehicles. The company has faced criticism from regulators and safety advocates over the system's reliability and safety. In a statement, *_Tesla_ spokesperson* said, "We're committed to making sure our technology is safe and reliable. We're working closely with the NHTSA to address any concerns they may have." The NHTSA's investigation is not the only scrutiny Tesla's FSD system has faced. In 2023, the company was sued by a group of investors who claimed that the FSD system was not as advanced as Tesla claimed. The lawsuit alleged that the company had misled investors about the system's capabilities and that it was not ready for widespread use. Tesla has maintained that its FSD system is safe and effective. The company has also argued that the system is not meant to be used in all situations and that owners should exercise caution when using it. However, critics have argued that the system is not reliable enough to be used in real-world driving situations. The NHTSA's engineering analysis phase is expected to provide a more detailed understanding of the FSD system's capabilities and limitations. The agency will examine the system's software, hardware, and testing procedures to determine whether it meets federal safety standards. The outcome of the investigation is still uncertain, but it is likely to have significant implications for Tesla and the automotive industry as a whole. As the investigation continues, Tesla's FSD system remains available in beta testing for select vehicles. The company has not provided a timeline for when the system will be widely available or when it will be fully integrated into its vehicles. The NHTSA's investigation is expected to take several more months to complete, and it is unclear what the outcome will be.