NHTSA orders end to sales of Autopilot Buddy, which disables Tesla safety feature NHTSA orders end to sales of Autopilot Buddy, which disables Tesla safety feature June 19, 2018 dzadmin Comments 0 Comment NHTSA issued a cease-and-desist letter Tuesday to a company selling an aftermarket device that effectively disables a safety feature in Tesla’s Autopilot semiautonomous driver assist system.