Zoox recalls self-driving cars over smoke detection failure

Zoox recalled 105 autonomous vehicles after finding its automated driving system may fail to detect and respond to heavy smoke, a defect that raises fresh questions about how robotaxis handle the kinds of conditions human drivers read instinctively. The recall, filed with the National Highway Traffic Safety Administration under campaign number 26E044, covers driverless vehicles operating on public roads since April 23, 2026.

NHTSA recall documents say the affected ADS software was released and installed on Zoox robotaxis built or deployed from April 23 through July 15, 2026. The company listed its address in the filing as 1149 Chess Drive in Foster City, California. Zoox said the fix comes after an unoccupied robotaxi encountered heavy smoke at an active emergency fire scene in Las Vegas on June 20.

The smoke problem reaches beyond one incident. Heavy smoke can come from wildfires, vehicle fires, construction haze or other sources that degrade visibility and interfere with cameras, radar, lidar and software interpretation. If a vehicle cannot reliably identify what is in front of it, it must slow, stop or hand control back in a way that protects passengers, other motorists and first responders. Reuters reported that the defect could impede emergency personnel, adding a public-safety dimension to a failure that began as a software problem.

The recall also underscores the gap between autonomous-vehicle promises and the operational reality of putting robotaxis on public roads. A system that performs well in controlled testing can still struggle in low light, dust, rain, glare or smoke, where the road is partially obscured and the vehicle has to make fast decisions with limited certainty. For an industry that sells seamless autonomy, a smoke detection failure is a reminder that basic perception remains one of the hardest problems.

Zoox has already been forced into another safety action. In March 2025, the company recalled 258 vehicles over unexpected hard braking after an NHTSA investigation, a voluntary software recall that showed the company has had to update its fleet in response to safety defects before. Amazon-owned Zoox has said safety is foundational to its mission, but repeated recalls show how closely regulators are watching as the company expands testing and deployment of its robotaxi fleet.