Once again, Tesla owners are coming for Elon Musk.

The much-hyped electric car company is now facing a class-action lawsuit over claims that it did not deliver some Foundation Series Cybertrucks with requested roof-mounted LED off-road light bars, despite promotional promises.

It seeks to represent all California buyers of the Foundation Series who were promised the off-road light bar but did not receive one.

You can read the entirety of the lawsuit here.

The suit was filed by plaintiff Eric Schwartz in California, who says he paid an extra $20,000 for the upgraded light bar but was instead delivered a truck without one.

Schwartz’s suit says he tried to resolve the issue by getting a new light bar directly from Tesla but sued when those efforts failed. His legal team asserts that Schwartz suffered an “injury in fact” because he was not given the product for which he had already paid.

The lawsuit further alleges that many buyers might not have purchased their Cybertrucks had they known Tesla’s advertising about the light bars was misleading, and that Tesla had no intention of delivering that upgrade at all.

Legal challenges pile up for Musk

This is at least the third major lawsuit against Musk that saw major developments this week.

On Aug.20, a Texas judge allowed a lawsuit against the bombastic billionaire to go ahead despite Musk’s attempts to quash it.

In that case, defendants who gave their personal information to a Musk PAC in order to win $1 million prizes claimed it was an illegal lottery. They have now been granted the right to take their case to trial, with the judge saying he found Musk’s legal defense shaky and the allegations persuasive enough to proceed.

Also earlier this week, U.S. District Judge Rita Lin ordered the automaker to respond to a class-action suit claiming the company misled consumers regarding the autonomous driving capabilities of its products.

The lawsuit asserts that Tesla hyped up the feature via Musk’s comments and on its social media, but failed to meet those promises of delivering self-driving vehicles.