Why might a turn assist system not always detect that a cyclist is present?

Your answer is correct. A turn assist system in a vehicle relies on sensors to detect obstacles like cyclists. However, if the sensors are dirty, their ability to detect objects is impaired. Similarly, parking cars can physically block the sensors’ view, causing the system to miss a cyclist hidden behind them. Additionally, if the sensor itself is damaged, it cannot function properly, leading to missed detections. Understanding these factors helps you recognize the limitations of assist systems and why drivers should remain attentive even when technology is in use.