What could indicate a problem with the vehicle's steering?

Unusual noises or resistance when turning the steering wheel are strong indicators of potential issues with a vehicle's steering system. This can suggest that there may be underlying problems such as low power steering fluid, worn or damaged steering components, or issues with the steering column or rack. Noises like grinding or squealing can signify that parts are not functioning properly, while resistance can indicate that the system is not performing as it should, making it harder to steer.

In contrast, frequent horn use does not have a direct correlation with the steering system's condition, loose seatbelts are related to safety rather than steering functionality, and a clean windshield, while important for visibility, does not indicate anything about the steering system. Hence, the context provided by the correct option focuses specifically on symptoms that affect the vehicle's ability to steer safely and effectively.