The so-called Tesla Full Self-Driving system (FSD for its English acronym) is once again under the scrutiny of the United States’ top road-safety authority.
The National Highway Traffic Safety Administration has placed beneath investigation 3.2 million Teslas that could be recalled if suspicions are confirmed: that the system cannot warn drivers in low-visibility conditions.
Could this be another massive recall?
According to Reuters, the NHTSA has opened an investigation based on nine incidents, including a fatal crash and two crashes with injuries, in which the system did not function properly under low-visibility conditions. Specifically, investigators are examining whether the system can detect obstacles during glare, dust, or other camera obstructions.
The probe covers nearly all Teslas on the roads in the United States, and if it is confirmed that the FSD does not react in these reduced-visibility scenarios, the 3.2 million vehicles under scrutiny could be recalled. In many of the crashes analyzed, “the FSD also lost sight of or never detected the vehicle ahead in its path,” the agency noted. It should be remembered that Tesla is the only brand whose driver-assistance system does not rely on radars or sensors to back up the camera.
The investigation is even larger than the one conducted in October 2025, concerning 2.88 million Tesla vehicles equipped with FSD following more than 50 reports of road-safety violations and a string of crashes. The automotive-safety agency said at the time that the FSD system has “induced vehicle behavior that violates traffic-safety laws” by implying that driver attention is unnecessary.
The NHTSA identified at least 20 crashes involving Tesla vehicles equipped with the updated Autopilot version. In nine of these, the Teslas crashed head-on into other vehicles or pedestrians in their path.
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