We’ve seen some close calls saved by the Model S’ active safety features powered by the Autopilot, like auto emergency braking preventing a 45mph head-on collision here, but today we take a look at a great example of Tesla’s auto emergency steering at work. Tesla Model S owner Joshua Brown posted a dashcam video of his Model S narrowly avoiding a side collision when a boom-lift truck merged in the right lane without looking. “Tesla Model S autopilot saved the car autonomously from a side collision from a boom lift truck.