NHTSA Complaint #11669559 — 2025 TESLA MODEL 3

FSD lane‑selection defect: vehicle moves into far‑left lane and remains there, forcing right‑side passing. Vehicle: 2025 Tesla Model 3, FSD v13.2.9 (current production build) Behaviour (100 % reproducible): • On every non‑interstate roadway with two lanes in each direction, the car self‑selects the far‑left lane and stays there at or just below the posted speed limit even when the right lane is completely clear. • If I disengage FSD, manually steer into the right lane, and immediately re‑engage FSD, the system moves back into the far‑left lane within seconds. This occurs on every attempt. • The freeway/interstate stack exits the left lane correctly, proving the capability exists and the defect is limited to surface‑street logic. Legal conflict: • Violates Massachusetts General Laws, ch. 89 § 4B, which requires drivers to keep to the right‑hand lane except when overtaking.