Tesla is recalling over two million cars in the US due to a defect in its Autopilot driver assistance system. The recall comes after a two-year investigation into crashes that occurred while the system was in use. The software update to fix the issue will be sent “over the air” and does not require a visit to a dealership or garage. The UK Driver and Vehicle Standards Agency stated that it was not aware of any safety issues with Teslas in the UK. Autopilot is designed to assist with steering, acceleration, and braking, but still requires driver input. The US National Highway Traffic Safety Administration found that the feature’s controls may not be sufficient to prevent driver misuse. Tesla did not respond to a request for comment.