Nov. 3 (UPI) -- Federal regulators have ordered Tesla to comply with an investigation into possibly defective door handles that reportedly led to trapped passengers. The National Highway Traffic Safety Administration told the Elon Musk -owned Tesla that the federal government received scores of complaints on its electric vehicles. As of Oct. 27, the NHTSA said it received 16 reports of exterior, retractable door handles becoming "inoperative due to low 12VDC battery voltage in certain MY 2021