The National Highway Traffic Safety Administration (NHTSA) has initiated an investigation into approximately 2.56 million Tesla vehicles due to several crashes linked to the 'Actual Smart Summon' feature. This remote parking technology, introduced in a September software update, allows drivers to summon their vehicles using only cameras. Complaints have emerged regarding the feature's failure to detect obstacles, leading to collisions. At least four incidents have been reported, highlighting concerns about driver safety and the effectiveness of the new system compared to its predecessor.