Complaint 2180186

Complaint Summary

STEERING

Owner Narrative

While using Tesla's Full Self-Driving (Supervised) software on the Pacific Coast Highway (PCH) and other highways, the vehicle’s automated steering system repeatedly malfunctions by failing to maintain lane centering. Specifically, the car drifts or actively steers across double yellow lines into the lane of oncoming traffic. This issue is a persistent failure of the Advanced Driver Assistance System (ADAS) and Lane Keeping Assistance. The vehicle has attempted this maneuver multiple times at [Approximate Speed, e.g., 40-60 mph], requiring immediate and forceful manual steering intervention to avoid head-on collisions with oncoming vehicles. The system provides no warning chimes, error messages, or "Take Over Immediately" alerts prior to crossing the lines; it appears to perceive the oncoming lane as a valid path or fails to recognize the double yellow boundary entirely. This has occurred during [mention conditions: e.g., bright daylight with high glare / night time]. The vehicle is equipped with Hardware 3.0 (HW3). I believe the 1.2-megapixel camera suite or the processing power of the HW3 computer is insufficient to safely navigate the geometry of the PCH or any roads within mountains/hills. I have attempted to "Clear Calibration" and performed system resets, but the life-threatening behavior persists. The vehicle and its internal data logs are available for inspection. I have also sent "Bug Reports" via voice command to the manufacturer immediately following these near-miss events.

Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.