"Although Tesla stands out as a groundbreaking company at the forefront of the electric vehicle revolution, its standard operating procedure at the Tesla factory is pre-Civil Rights era race discrimination", the employees said in the complaint, that was filed in a California court.
Vaughn's legal action, filed in California state court in Oakland on November 13, is at least the third lawsuit filed this year by black workers alleging racial slurs were used against them and that the company ignored their complaints, Reuters reported.
The suit, filed by former production floor laborer Marcus Vaughn on behalf of several black employees, claims that one of Tesla's factories practices "pre-civil rights era race discrimination".
And in October, three former workers said the Tesla factory is a hostile environment for black employees, claiming little was done to stop others from routinely calling them the n-word and making other racially insensitive remarks.
Vaughn stated that although the company is considered an innovative company and the pioneer of the electric vehicle revolution, its standard operating procedure "is pre-Civil rights era race discrimination".
In October, Vaughn was sacked for "not having a positive attitude".
He is seeking unspecified damages under a California anti-discrimination law.
In addition to the growing number of lawsuits the company is facing, a unionization campaign by United Auto Workers is underway.
The complaint also quotes a May e-mail from CEO Elon Musk that seemed dismissive of problems at the factory.
Shares of Tesla closed down 2.1 percent on Tuesday afternoon following news of a civil rights lawsuit against the automakers.
"In fairness, if someone is a jerk to you, but sincerely apologizes, it is important to be thick-skinned and accept that apology", Tesla's C.E.O wrote in an email.
A representative for Musk did not immediately respond to TheWrap's request for comment.
The suit references an e-mail that CEO Elon Musk allegedly sent to Fremont factory workers addressing complaints of a toxic culture. "Sometimes these things happen unintentionally, in which case you should apologize".
Overloaded with such allegations and lawsuits, Tesla is prepping to launch its semi truck on Thursday of this week.