What is the minimum number of cycles windshield wipers should be tested before inspecting for streaking?

The minimum number of cycles that windshield wipers should be tested is five cycles. This requirement ensures that the wipers are fully evaluated under realistic operating conditions. Testing the wipers for a sufficient number of cycles allows for the assessment of their performance in clearing water and any debris from the windshield effectively.

During the first few cycles, the wipers may not fully engage or distribute the washer fluid evenly, so it is crucial to allow them to operate several times. By the fifth cycle, any potential issues such as streaking or improper clearing should become evident. Streaking could indicate that the wiper blades are damaged or not making proper contact with the windshield, which can obstruct visibility. Therefore, conducting the test for five cycles is essential to obtain a reliable assessment of their condition and performance. This practice ensures that vehicles meet safety standards for visibility, contributing to overall road safety.