Tesla Cybertruck attempts to drive off Houston overpass
Tesla Cybertruck attempts to drive off Houston overpass
Occurred: August 2025
Page published: March 2026
A Tesla Cybertruck operating in "Full Self-Driving" (FSD) mode attempted to drive straight off a Houston overpass instead of following a curve, causing a high-impact collision that severely injured the driver and highlighted the dangers of over-marketing inherently fragile semi-autonomous systems.
Houston resident Justine Saint Amour was driving her Cybertruck on the 69 Eastex Freeway with FSD engaged. As the vehicle approached a Y-shaped overpass split, the system failed to navigate the right-hand curve.
Instead, it steered the truck directly toward a concrete barrier - the only structure preventing a fall onto the highway below.
Despite the driver's attempt to disengage the system and regain control, the vehicle struck the barrier, causing the hood to fly open and body panels to detach.
Saint Amour suffered permanent injuries, including three herniated discs, wrist tendon damage, and neuropathy.
The incident is attributed to a failure in Tesla’s "Vision" system, which relies exclusively on cameras rather than LiDAR or radar. The lawsuit alleges that Tesla’s leadership, specifically CEO Elon Musk, overrode engineering recommendations to include more reliable sensors.
Additionally, the root cause is attributable to "marketing defects": the branding of the system as "Full Self-Driving" may create a false sense of security, leading users to trust the software in complex environments like freeway interchanges where the system's "supervised" limitations are most critical.
For Justine, the incident resulted in significant physical trauma and a potentially costly legal battle.
For society and policymakers, it intensifies the scrutiny of Level 2 autonomous systems that require "supervision" but are marketed with names suggesting full autonomy. The case is legally significant because it introduces the "negligent retention" of a CEO as a legal theory, arguing that a leader's personal design philosophy, such as rejecting LiDAR, can constitute corporate negligence if it leads to foreseeable product failures.
Developer: Tesla
Country: USA
Sector: Automotive
Purpose: Automate steering, acceleration, braking
Technology: Self-driving system; Computer vision
Issue: Accountability; Accuracy/reliability; Safety; Transparency
February 2025. Justine Saint Amour purchases a used Cybertruck with the FSD package.
August 18, 2025. The crash occurs on the 69 Eastex Freeway in Houston.
December 2025. A California judge rules that Tesla’s FSD marketing is "unambiguously false."
February 2026. Saint Amour files a lawsuit against Tesla in Harris County District Court.
March 2026. Details of the lawsuit and dashcam footage become public, sparking international news coverage.
Justine Saint Amour v. Tesla, Inc.
AIAAIC Repository ID: AIAAIC2245