You are using your motor vehicle’s lane keep assist system while driving. The system does not respond when you depart from the lane. What could be the cause of this?

The selected combination of factors—Inadequate road illumination, Heavy precipitation, and A lack of lane markings—are all valid reasons for the lane keep assist system not functioning properly.

1. Inadequate road illumination can affect the sensors that detect lane markings, making it difficult for the system to maintain correct lane positioning at night or in poorly lit conditions.

2. Heavy precipitation can obscure lane markings and reduce the effectiveness of the system, as the sensors may struggle to accurately recognize the lane boundaries due to water on the road surface.

3. A lack of lane markings is a critical factor, as lane keep assist systems rely on clear visual cues to detect and respond to lane boundaries. Without these markings, the system cannot function properly.

In German traffic regulations, it is essential for drivers to be aware of how environmental conditions can impact vehicle technology and to take responsibility for safe driving, especially when relying on assistive systems. Understanding these factors can help drivers make informed decisions while on the road.