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Video: The Tech That Drives Tesla's Autopilot

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Radar, ultrasonic sensors, cameras and high-precision GPS: The equipment on a Tesla Model S sounds more like what you’d find on a high-tech drone than a car.

Together, the tech enables Tesla’s self-driving autopilot function, which the company calls a “driver assistance tool.” A driver can turn on autopilot and the car takes over using radar for scanning over distance, sensors to detect closer threats like jersey walls and GPS data to maintain position.

The latest software update supports managing speed, steering down the highway, changing lanes and parallel parking.

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