The 2nd Workshop on the Challenge Of Out-Of-Label Hazards in Autonomous Driving (2COOOL) focuses on enhancing safety and robustness in autonomous systems by tackling challenges posed by unknown or out-of-distribution objects and behaviors. The workshop brings together researchers and practitioners from academia and industry, including our diverse team of co-organizers, to explore state-of-the-art solutions and techniques across various domains for real-world driving environments. It features expert keynotes, paper presentations, and a Kaggle challenge on generating hazard and accident reports from dashboard cameras. 2COOOL aims to advance the frontier of autonomous driving by fostering innovation to handle unexpected scenarios and build more robust ADAS systems.