What Causes Wiper Blade Chatter?

[SanKhloe]

There are two main reasons for wiper blade chatter on the windshield: aged and hardened wiper blades, and improper installation or deformation of the wiper arm. Aged and hardened wiper blades: The rubber strip that actually cleans the glass is the key component, while the rest consists of the housing and pressure parts. Since the rubber wiper blades are directly exposed to the air and face various harsh weather conditions, they age very quickly. Typically, after two to three months of use, they may start producing noise or lose their water-repellent ability. Improper installation or deformation of the wiper arm during installation. Solutions to address wiper blade chatter: Directly replace the wiper blades. Reinstall the wiper blades, ensuring the U-hook and wiper connection are fully engaged before locking. If the wiper arm is deformed, causing uneven pressure distribution, remove the wiper and check if the arm is parallel to the windshield. If not, manually adjust it to correct the alignment.