NHTSA asks for details of collision warning system and emergency braking failures

Tesla's Model S on the road in Palo Alto, California Credit: Martyn Williams

The U.S. government has asked Tesla Motors for detailed information about key safety systems on its cars after a May 7 crash in which a driver was killed while traveling in autonomous mode.

In the accident, a Tesla Model S in autopilot mode failed to recognize a truck being driven across the highway in front of it and slammed into it.

The roof of the car was torn off and the driver was killed.

In a letter sent to Palo Alto-based Tesla Motors, the National Highway Traffic Safety Administration NHTSA is asking for details of all incidents in which automatic emergency braking was initiated and automatic steering warnings were recorded.

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