While driving, you use your vehicle’s adaptive cruise control (ACC) system. What must you anticipate in these weather conditions?

When using adaptive cruise control (ACC) in challenging weather conditions, it's crucial to remember that the system's functionality might be compromised. For instance, slippery or icy roads can lead to inaccurate readings, affecting how well the ACC can maintain speed and distance from other vehicles.

1. **Functionality of ACC**: In conditions like snow or heavy rain, sensors may struggle to detect vehicles effectively, which can result in erratic acceleration or deceleration. Thus, drivers must remain vigilant and ready to take manual control.

2. **Personal Control**: Being prepared to manage your speed and distance manually is essential. Weather can change rapidly, and external factors like other vehicles or obstacles may not be properly calculated by the ACC.

This understanding is in line with German traffic regulations, which emphasize the need for drivers to maintain control of their vehicles at all times, especially under performance-compromising conditions. It's important to always be ready to intervene for safety.