What is one indicator that the windshield wipers are functioning properly?

A key indicator of proper functioning for windshield wipers is that they operate smoothly. When wipers function correctly, they effectively clear rain, snow, or debris from the windshield without any stuttering, skipping, or hesitation. This smooth operation indicates that the wiper blades are in good condition and making proper contact with the glass, ensuring optimal visibility for the driver. If wipers are functioning smoothly, it shows that the motor and linkage involved in the wiper system are also in good working order, contributing to safer driving conditions.