A Brussels road safety group, Johanna.be, tested Tesla's Full Self-Driving (Supervised) over three days and 400 km, focusing on low-speed streets. The system exceeded the 30 km/h limit in 55% of the zones it drove through, averaging 44 km/h, and also broke 20 km/h limits in 42% of residential shared streets. The group's report, released ahead of an EU vote on FSD approval, highlights that the car's screen often showed a 50 km/h limit where 30 km/h applied, suggesting the software misread the speed limit.
The findings land less than two weeks before EU member states vote on extending the Dutch RDW's provisional approval to all 27 countries. Speeding has already been a major obstacle: Sweden, Norway, and Finland have urged rejection unless Tesla removes the ability to exceed limits, and France refused to recognize the approval in July. Tesla has countered with its own study claiming FSD does not "speed excessively" and matches surrounding traffic, but the independent test contradicts that.
The Flemish government, which approved FSD in June, said the system is "learning" and drivers remain "100% responsible," a standard line for Level 2 driver assist. However, the study's authors argue that approving software that cannot reliably identify speed limits in dense urban areas—where pedestrians and cyclists are most vulnerable—shifts an unreasonable burden onto drivers. The EU vote on October 6 will determine whether FSD gains bloc-wide approval, and the Brussels results could weigh heavily on that decision.