Elon Musk's electric vehicle company Tesla is once again being investigated by federal regulators.

On Thursday, the U.S. National Highway Traffic Safety Administration (NHTSA) announced that it was investigating Tesla vehicles with "Full Self-Driving" (FSD) assistance installed over traffic safety violations.

That's 2.88 million Tesla vehicles that are part of the investigation, as they all have the FSD assistance system installed.

According to the NHTSA, the agency has 58 separate reports involving traffic safety issues with Tesla vehicles that use FSD. This includes 14 crashes and 23 injuries. The traffic violations ranges from FSD-installed Tesla vehicles running through red lights to the EVs driving the wrong way against traffic during a lane change.

The NHTSA's reports include

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