Approximately 765,000 Tesla vehicles in the U.S. are equipped with automated driving systems, which can control steering, speed and braking, but cannot yet safely replace human drivers entirely.
In a series on Twitter on Tuesday, David Colombo claimed that he had been able to remotely access the vehicles and disable Sentry Mode-a feature that allows Tesla owners to monitor suspicious activities-unlock doors and windows, and start the cars without keys.
The National Highway Traffic Safety Administration (NHTSA) announced on Dec 22. that it has opened a formal investigation into Tesla over the safety of its front center touchscreen.
Musk announced the news on Twitter and invited people to participate in the program, writing: "SpaceX is starting a program to take CO2 out of atmosphere & turn it into rocket fuel. Please join if interested."