The National Highway Traffic Safety Administration has opened a formal investigation into Tesla. The agency is looking into about 580,000 Tesla vehicles, and a feature called 'Passenger Play' which allows drivers to play video games on the center touch screen. The feature previously only worked when a vehicle was in park; but, the NHTSA says it has confirmed that the feature has been available while vehicles are in motion since December of 2020. iSeeCars.com executive analyst Karl Brauer joins Cheddar News' Closing Bell to discuss.