Tesla Model S human collision avoidance test

Check out this driver as he tests the collision avoidance for the Tesla Model S on his brave friend. They test the car in 3 modes, Summon, which did a perfect job stopping each time, but TACC and autopilot failed to attempt to stop the car, though give an audible and visual collision warning. It fails in their opinion to attempt to slow or stop the car. Now each situation is different, but in this case it did not work. He has, however, had the car emergency brake when another car pulled out in front of him.