>The Model S decided to merge into the fast lane, turning a left blinker on, then moved there and started sudden deceleration to a speed of 7 mph as if being pulled over, causing vehicles behind it to bump or crash into each other. >Some observers argued that a recently installed warning light at the beginning of the tunnel may have been mistaken for a traffic light, while subsequent media efforts to recreate the FSD confusion at the exact same place didn't pan out.