Tesla Full Self-Driving attempts 150-mile stress test: the good and the bad
teslarati.com Jun 3, 2026

Tesla Full Self-Driving attempts 150-mile stress test: the good and the bad

AI-summarised brief · reviewed before publication

A Tesla Model Y with Full Self-Driving v14.3.3 was taken on a 150-mile stress test on the Pennsylvania Turnpike. The system performed well, handling various scenarios such as recognizing lane-ending arrows and adjusting lane positioning to avoid a veering tractor-trailer. The driver was impressed with the system's overall performance, noting that it made the trip more enjoyable and reduced driver fatigue. The test highlighted the system's ability to follow rules of the road, including staying in the chosen lane while driving through tunnels. The driver intervened only when necessary, primarily due to other drivers' behaviors.

💡 Why It Matters

  • · Full Self-Driving's ability to recognize and respond to complex road scenarios reduces driver workload and increases safety.
  • · Its capacity to follow simple yet critical rules, like staying in lane during tunnel travel, demonstrates a deep understanding of road etiquette.