NHTSA Complaint #11705075 — 2023 TESLA MODEL Y

I am reporting a recurring safety defect involving the Full Self-Driving (Supervised) system on my pre-owned 2023 Tesla Model Y Dual Motor Long Range (VIN: [XXX] ), equipped with Tesla Hardware 3. Component/System: Full Self-Driving (Supervised) software and driver-assistance control system. The vehicle remains in my possession and is available for inspection upon request. Description: From the time of purchase (approximate mileage ~66,549), the FSD system repeatedly exhibited unsafe behavior during normal operation on public roads, including straddling two lanes, drifting toward lane markers, stopping at green lights or within intersections, hesitating mid-intersection, and failing to complete routine turns. These behaviors required frequent human intervention and made the system unsafe to use. Safety Risk: The behavior created a risk of collision with other vehicles and posed a danger to occupants and other road users, particularly when stopping unexpectedly at green lights or hesitating in intersections. Confirmation/Inspection: The issue was reported multiple times to Tesla Service and escalated internally. Tesla inspected the vehicle and confirmed in writing that the FSD behaviors were “behavioral” and not resolvable by hardware replacement at that time, with no known fix or timeline. Warnings: No warning lamps or fault messages were displayed prior to or during the incidents. Despite these issues, Tesla continued to advertise the vehicle as FSD-capable and accepted payment for the FSD subscription. I provided Tesla formal written notice via certified mail, delivered November 26, 2025, with no response within the stated timeframe. Although a recent software update has temporarily improved behavior, the defect existed at purchase and persisted through multiple service interactions. Additional documentation, service records, and communications are available upon request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)