Tesla has won a major appeal in a lawsuit accusing the automaker of misleading customers about its Full Self-Driving technology, but the judges never had to determine whether the company’s promises were accurate. The victory came down to a much narrower question: Who actually saw the advertising?
Thousands of Tesla customers potentially stood to participate in a class action over claims that the company sold expensive driving technology based on promises it had not fulfilled. A federal judge had allowed the buyers to pursue their claims together, reasoning that people spending thousands of dollars on the software were highly likely to have researched it on Tesla’s website.
Tesla challenged that assumption, pointing out that purchasing the technology did not require customers to visit the particular webpage containing the disputed promise. On October 16, 2026, the Ninth Circuit Court of Appeals agreed, overturning the certification of three classes of California customers.
The decision gives Tesla a significant procedural victory in a dispute dating back nearly a decade, while leaving the underlying accusations about its self-driving technology unresolved.
Thousands of Dollars for a Future Promise
The lawsuit traces back to October 2016, when Tesla announced that vehicles leaving its factory already possessed the hardware necessary for fully autonomous driving. In an announcement published that month, the automaker said its new vehicles had the hardware needed for full self-driving capability at a safety level substantially greater than that of a human driver.
Customers could pay thousands of dollars for optional driving technology packages, with prices ranging from $3,000 to $15,000 during the periods examined in the litigation. Thomas LoSavio, the lead plaintiff, purchased a Model S in early 2017 and paid $5,000 for Enhanced Autopilot plus another $3,000 for Full Self-Driving.
LoSavio said he encountered Tesla’s hardware claims on its website and in a company newsletter before buying the packages. He also relied on statements suggesting that a Tesla would soon be capable of driving itself across the country. According to the court records, he expected that functionality to become available within a year or two.
The lawsuit alleged that Tesla misrepresented what its vehicles’ existing hardware could eventually accomplish. The dispute was particularly significant because Tesla subsequently introduced newer hardware generations, and Elon Musk acknowledged during a 2024 earnings call that some customers who purchased Full Self-Driving would need computer upgrades.
In August 2025, U.S. District Judge Rita Lin certified three classes of California Tesla customers. Her decision recognized that buyers were not required to visit Tesla’s Autopilot webpage, but she concluded that the company’s unusual sales model made widespread exposure to the advertising a reasonable inference.
Tesla sells vehicles directly rather than through independent dealerships and historically relied heavily on its own website to explain its technology. Judge Lin reasoned that prospective customers spending substantial money on Full Self-Driving would naturally consult the company’s descriptions before purchasing.
The Webpage That Undid the Case
The three-judge appellate panel found that reasoning insufficient. Although Tesla’s Autopilot webpage prominently displayed the disputed hardware statement, customers could purchase Full Self-Driving without ever opening that page.
The judges compared the situation to misleading information printed on a product label. When a statement appears on packaging consistently presented to buyers, a court may reasonably infer that purchasers were exposed to it. An optional webpage presents a different problem because customers might never encounter the claim.
Tesla’s website traffic figures did not establish what proportion of actual Full Self-Driving buyers had viewed the page. Other statements made through newsletters, presentations, and company communications were also insufficient to establish that the proposed class members had encountered the disputed representation.
That distinction had consequences beyond the advertising claim itself. The appeals court found that determining what individual customers had seen could also affect whether their claims were filed within the applicable legal deadlines. It vacated certification of both classes seeking monetary relief and the related class seeking changes to Tesla’s future advertising.
The case now returns to the district court, where the customers may continue pursuing their claims, although proceeding collectively would require overcoming the deficiencies identified by the appeals court.
The ruling does not establish that Tesla’s advertising was truthful, just as the original allegations do not establish that the company committed fraud. The judges decided that the buyers had not met the requirements to proceed under the three certified classes, leaving the central dispute about Tesla’s self-driving promises for another day.