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.

The National Highway Traffic Safety Administration has opened a probe into 2.6 million Tesla vehicles in the United States after it received several reports of crashes involving the use of the so-called Actually Smart Summon–or ASS–remote driving feature.

Safety regulators launched the investigation after reports of crashes involving the feature, which allows drivers to summon parked cars.

U.S. regulators on Tuesday announced an investigation into 2.6 million Tesla vehicles following reports of crashes linked to technology that enables drivers to use a smartphone app to remotely summon their cars or direct them to another location.

The “Actually Smart Summon” feature enables drivers to remotely summon or move their vehicles to them or another location via a mobile phone app.

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