U.S. regulators have opening an investigation into 2.6 million Tesla after reports of crashes involving the use of company technology that allows drivers to remotely command their vehicle to return to them,

The National Highway Traffic Safety Administration said on Tuesday it has opened a probe into 2.6 million Tesla vehicles in the United States over reports of crashes involving a feature that allows users to move their cars remotely.

The National Highway Traffic Safety Administration announced it is investigating nearly 2.6 million Tesla vehicles over a remote driving feature.

The National Highway Traffic Safety Administration said Tesla’s automated summoning feature has been linked to at least four crashes.

The National Highway Traffic Safety Administration has launched an investigation into crashes It said occurred while Tesla vehicles were operating with a parking feature that allows owners to summon a car from a parking space without anyone being in the vehicle.