Feds want robotaxis to signal ‘I’m driving’ with cyan-colored lights
News Source
•2026-10-23T11:24:45-04:00
📰 What Happened
US road safety regulators want driverless cars to show a cyan light when the computer is driving. The National Highway Traffic Safety Administration says the blue-green lamps would tell police and other drivers that no human is at the wheel.
The lights would be optional, but the proposed rule sets one legal colour, brightness and position so every car looks the same. It also removes old rules for hand switches and levers that a driverless car does not need.
🔍 The Backstory
The industry argued for years about how robotaxis should signal their status, with ideas like flashing text, sounds and custom lights. Cyan was chosen because red, amber, white and blue already mean brakes, indicators, headlights and emergency vehicles.
Mercedes-Benz briefly won state approval for turquoise lights on cars with its Drive Pilot system. Waymo, Nuro, Zoox and Tesla would all be able to use the same national standard.
🎯 Why It Matters
Knowing whether the car beside you is driving itself matters for safety. One clear signal is easier than guessing.
US road safety regulators want driverless cars to show a cyan light when the computer is driving. The National Highway Traffic Safety Administration says the blue-green lamps would tell police and other drivers that no human is at the wheel.
The lights would be optional, but the proposed rule sets one legal colour, brightness and position so every car looks the same. It also removes old rules for hand switches and levers that a driverless car does not need.
The industry argued for years about how robotaxis should signal their status, with ideas like flashing text, sounds and custom lights. Cyan was chosen because red, amber, white and blue already mean brakes, indicators, headlights and emergency vehicles.
Mercedes-Benz briefly won state approval for turquoise lights on cars with its Drive Pilot system. Waymo, Nuro, Zoox and Tesla would all be able to use the same national standard.
Knowing whether the car beside you is driving itself matters for safety. One clear signal is easier than guessing.