The U.S. government’s highway safety agency says Tesla is telling drivers in public statements that its vehicles can drive themselves.

The National Highway Traffic Safety Administration raised concerns about Tesla social media posts that suggested its Full Self-Driving software can be used as a robotaxi and does not need driver attention.

The U.S. government’s highway-safety agency says Tesla is telling drivers in public statements that its vehicles can drive themselves, conflicting with owners manuals and briefings with the agency saying the electric vehicles need human supervision.