The sign "Ban on passenger cars" in Germany indicates that the road is prohibited for passenger cars. This means that only vehicles that are exempt, such as trucks, buses, or certain types of vehicles, may proceed along that road. It’s important for drivers to adhere to this restriction, as ignoring it could lead to fines and contribute to traffic congestion or safety hazards in areas where passenger cars are not allowed.

When you encounter this sign, you should look for alternative routes if you are driving a passenger car. Always pay attention to additional signs that may clarify further restrictions or exceptions.