What happens if the windshield wipers are unable to completely clear water from the wiped area?

When windshield wipers are unable to completely clear water from the wiped area, they may fail inspection because proper visibility is critical for safe driving. Windshield wipers are designed not only to move but also to effectively clear water, dirt, and debris to ensure that the driver has a clear line of sight. If the wipers do not perform this function adequately, they compromise the vehicle's safety features, which can lead to dangerous driving conditions, particularly in adverse weather.

Additionally, failing wipers could indicate that the blades are worn, the motor is malfunctioning, or that the wiper fluid system is ineffective, all of which contribute to the potential for the vehicle to be unsafe on the road. Therefore, in the context of a safety inspection, ensuring that wipers function properly and can clear the windshield entirely is essential for passing the inspection and ensuring overall vehicle safety.