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A service bulletin addressing common issues with windshield wiper performance and noise in vehicles. It covers complaints such as squeaking, shuddering, and insufficient wiping caused by factors like residue from car washes and incorrect wiper arm angles. The document provides remedies, including cleaning the windshield, checking wiper blade conditions, and ensuring proper installation of parts. It also includes references to specific vehicle models and part numbers required for replacement or adjustment. The bulletin emphasizes the importance of using genuine parts and notes that certain conditions are considered normal operating behavior.