Tesla autopilotTesla
Tesla's semi-autonomous Autopilot system is an amazing feature. 
It's been shown time and time again to help people avoid accidents. In fact, Tesla CEO Elon Musk said in April that Autopilot can help reduce accidents by as much as 50%.
But just like any system, it's not perfect. And it requires a human to pay attention at all times. 
On Thursday, regulators revealed an investigation into a possible tie between Tesla's Autopilot system and a fatal accident.
While few details about the collision have been revealed, Tesla has said that the car was in Autopilot mode when the car crashed.
Here's a closer look at how Autopilot works to help you better understand how it should be used.

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