The 69 Eastex Freeway overpass in Houston has a Y-shaped split. One path curves right. The other ends at a concrete barrier above a freeway drop. According to a new lawsuit filed in Harris County district court, a Tesla Cybertruck running on autopilot chose the barrier.

The Fact: Justine Saint Amour, who bought her Cybertruck in February 2025 with the Full Self-Driving (FSD) package included, is suing Tesla for more than $1 million, alleging negligence and gross negligence after the vehicle failed to follow the road’s curve and steered into a concrete barrier.
The Delta: The suit calls out the absence of LiDAR, the failure of automatic emergency braking to activate, and misleading “self-driving” marketing. Plaintiff’s attorney puts it plainly: “Elon Musk is an aggressive and irresponsible salesman who has a long history of making dangerous design choices, and overpromising features of his products.”
The Warning: Saint Amour says she disengaged autopilot and grabbed the wheel, but it was already too late to avoid the impact.
The Buyer Impact: This case puts the gap between Tesla’s marketing language and its legal disclaimers before a jury, the same contradiction that has complicated every autopilot-related lawsuit to date.

On the 69 Eastex Freeway, the Cybertruck Went Straight When the Road Curved Right

According to the lawsuit, filed via Car Complaints, Saint Amour’s Cybertruck was traveling on the 69 Eastex Freeway approaching the 256 Eastex Park and Ride interchange. At the Y-shaped split, where the vehicle should have followed the curve to the right, the Cybertruck continued straight and hit the concrete barrier at the edge of the overpass. Saint Amour disengaged autopilot and took the wheel, but she could not avoid the crash in time.

One detail worth noting: the lawsuit text uses “autopilot” throughout, and it is not confirmed in the Newsweek source whether the active mode was basic Autopilot or the FSD package she purchased. Tesla sells both as separate products with different capability levels. That distinction may matter in court.

The petition does not specify speed at impact, whether airbags deployed, or the full extent of her injuries, though it claims significant injuries and sets a seven-figure demand. Saint Amour is represented by Hilliard Law. The case is in its early procedural phase. Tesla has not yet filed a formal response.

The Lawsuit Targets Tesla’s Hardware, Software, and Marketing Simultaneously

The complaint targets the vehicle’s failure to read the Y-junction and follow the curve. It also targets the automatic emergency braking system, which did not activate despite the vehicle heading directly toward a fixed barrier. Those are software and sensor failures. The third line of attack is the absence of LiDAR, which the plaintiff argues left the system without sufficient sensing capability for complex road geometry.

The marketing argument runs alongside all three. The suit challenges Tesla’s use of “Full Self-Driving” and “Autopilot” as product names, arguing they create reasonable consumer expectations that the hardware cannot meet. Tesla’s own owner’s manuals have long instructed drivers to stay attentive and keep hands on the wheel, a requirement that directly contradicts both names. We covered this exact contradiction in January when Tesla ended the lifetime FSD purchase option after years of Musk promising the feature would be worth $100,000 once full autonomy arrived.

The Cybertruck’s Growing Legal Record

This is not the first time the Cybertruck has ended up in court over a serious crash. Last July, we reported on the first wrongful death lawsuit involving a Cybertruck, filed by the family of Michael Sheehan after he died in a fiery August 2024 crash near Beach City, roughly 30 miles east of Houston. That suit named Tesla for alleged defective safety designs, though it also named a bar accused of overserving Sheehan before he got behind the wheel, which makes it a more complicated liability picture than a clean safety case.

Tesla’s broader litigation record has been heavy. A Model 3 lawsuit from December alleged the vehicle suddenly accelerated out of control before crashing into a utility pole. Separate door-handle lawsuits have piled up after multiple people became trapped inside crashed Teslas when the electronic door systems failed post-impact. And in February 2026, we documented the story of FSD v14 successfully navigating a heart attack patient to an ER, a case that showed what the technology can do when it works.

The contrast between those two outcomes captures the core problem Tesla faces legally: the system is capable enough that people trust it completely, but not reliable enough to handle every scenario without human backup.

The LiDAR Argument Returns in a New Context

The plaintiff’s call for LiDAR is not new in autopilot litigation, but it carries more weight now than it did three years ago. Tesla’s camera-only approach has always been a calculated bet. Musk has argued repeatedly that LiDAR is unnecessary for vision-based AI systems, that cameras are how humans navigate the world, and that LiDAR adds cost without proportional safety gain. His competitors disagree. Waymo runs LiDAR. Mercedes’ Drive Pilot system, which held a limited SAE Level 3 certification in California and Nevada as of early 2026, does too.

Whether the absence of LiDAR caused this specific crash is a technical question that expert witnesses will argue in court. What the lawsuit does is put Tesla’s hardware choice on trial alongside its software, a broader attack surface than most prior cases.

EVXL’s Take

The Y-junction failure described in this lawsuit is exactly the kind of edge case that separates a driver assistance system from a self-driving one. A split freeway ramp is not an exotic scenario. It’s Tuesday morning commute infrastructure in Houston. If the system cannot reliably navigate a standard overpass interchange, the product name is doing real damage. Not reputationally. Legally.

The “hands on wheel, stay alert” disclaimer has always been Tesla’s escape hatch. But courts are increasingly skeptical of companies that name a product “Full Self-Driving,” market it in videos of drivers reading newspapers, and then point to fine-print warnings when something goes wrong. Hilliard Law’s framing of Musk as “an aggressive and irresponsible salesman” is not subtle. It’s also not accidental. They’re trying to get that characterization in front of a jury before Tesla’s attorneys can reframe this as a driver inattention case.

The crash date is not specified in the petition, so we don’t know how long Saint Amour owned the vehicle before the incident. What we do know is that she filed a seven-figure lawsuit, which tells you something about the severity of what she experienced, whatever the timeline.

I’d expect Tesla to move to limit discovery and challenge the gross negligence standard, which requires proof of conscious disregard for safety. That’s a high bar. But if Hilliard Law gets internal FSD validation documents in front of a jury, specifically what Tesla knew about Y-junction performance before shipping this system, the gross negligence argument gets harder to dismiss. Watch for Tesla’s initial motion response within the next 60 to 90 days. If they don’t move to dismiss early, they’re likely negotiating a settlement.

Source: Newsweek

Editorial Note: AI tools were used to assist with research and archive retrieval for this article. All reporting, analysis, and editorial perspectives are by Haye Kesteloo.