The Attention Assist system does work at night, but its performance may be affected by light conditions. This system typically monitors the driver's facial features and eye movements via a camera inside the cockpit. However, in nighttime or low-light environments, the system's accuracy may decrease due to factors such as increased difficulty in recognizing facial features, interference from direct sunlight or oncoming vehicle headlights, and situations where the driver may be wearing sunglasses. To enhance reliability for nighttime use, some advanced vehicle models integrate infrared cameras or thermal imaging technology to improve monitoring capabilities. It is important to note that the Attention Assist system only serves as a driving aid and cannot fully replace the driver's attention, especially when driving at night, when drivers should remain extra vigilant.