Tesla's Full Self-Driving system is drawing attention in Europe after the Belgian road-safety group Johanna.be's tests found the software speeding in low-limit areas and attempting to overtake cyclists where passing is forbidden, Fox Business reported, citing Reuters.
Here's what to know
Johanna.be, a Belgian pedestrian and cyclist safety group, spent three days in July testing Tesla's Full Self-Driving, or FSD, over about 249 miles (400 kilometers).
Among issues Johanna.be flagged were repeated problems in 12 mph (20 km/h) and 19 mph (30 km/h) areas, including instances where the vehicle's screen showed the wrong speed limit.
In the Brussels-area 19 mph (30 km/h) zones included in its test, the group said the car was above the limit in most cases, averaging 27 mph (44 km/h). Johanna.be added that the display appeared to recognize roadside signs but still often displayed incorrect speed limits.
Videos also showed FSD-enabled Teslas attempting to pass cyclists on streets where overtaking is not allowed.
At the same time, the report did not describe the system as performing poorly in every case.
FSD "behaved cautiously and courteously around pedestrians and cyclists, often yielding proactively," per test results.
More background
Belgium authorized FSD in 2025 after approval in April from Dutch regulator RDW.
Several other countries followed, and a European Union-wide vote could happen.
Tesla has more broadly pushed back on concerns about the system's behavior.
The automaker pointed to a study that Reuters described as finding that FSD-equipped vehicles avoid excessive speeding and generally move with surrounding traffic.
What's being done?
Xavier Lesenne, a spokesperson for the Flemish transport ministry, told Reuters that FSD is "a learning system that continuously processes new and additional information" and adapts over time.
He said the driver "remains 100% responsible" and must be ready to intervene "should the system make an error or fail to correctly apply a traffic rule."
Where can I learn more?
For more context, these stories dig into the broader debate over how Tesla's Full Self-Driving behaves on public roads. They cover European road tests, crash-risk concerns, and calls for federal scrutiny in the U.S.
• In Europe, first-hand Tesla trials showed FSD still struggling with local roads.
• Drivers using Tesla's self-driving mode more recklessly have fueled broader crash-risk fears.
• U.S. senators pressed the NHTSA after railroad crossing incidents raised alarms about Tesla safety.
Get TCD's free newsletters for easy tips, smart advice, and a chance to earn $5,000 toward home upgrades. To see more stories like this one, change your Google preferences here.







