Amazon-owned Zoox has voluntarily recalled software affecting 105 robotaxis after an unoccupied vehicle drove into heavy smoke at an active fire scene in Las Vegas on June 20. The robotaxi failed to recognize the smoke-obscured emergency area, entered the scene, and performed a hard braking maneuver before stopping. No injuries were reported, and Zoox said it was an isolated incident. The recall comes amid increased scrutiny from the National Highway Traffic Safety Administration (NHTSA), which recently urged autonomous vehicle developers to improve their vehicles' ability to detect and respond to first responders, emergency scenes, smoke, fire, traffic cones, and flashing lights. The agency cited a growing pattern of driverless vehicles interfering with emergency operations and has requested solutions from AV companies by the end of the month. $AMZN $GOOGL