WASHINGTON—U.S. auto safety regulators on Thursday asked Tesla Inc. to answer questions about its in-car camera intended to monitor driver awareness as part of a probe into 830,000 Tesla vehicles that employ the carmaker’s advanced driver assistance system called Autopilot.
The National Highway Traffic Safety Administration (NHTSA) is assessing the performance of Autopilot after earlier identifying a dozen crashes in which Tesla vehicles struck stopped emergency vehicles.
