What Causes the Wiper Blade to Shake on a New Car?

[StWyatt]

New car wiper blades shaking during use is primarily due to the high friction coefficient between the wiper blade and the glass surface. This can be categorized into the following scenarios: 1. Uneven contact between the wiper blade and the glass: Some parts of the rubber blade are pressed too hard against the surface while others receive minimal pressure, leading to uneven force distribution during wiper movement and resulting in shaking at certain points. 2. Dirt or foreign objects on the wiper blade or glass surface: When the wiper passes over these areas, resistance increases significantly, causing shaking. 3. Deformed wiper arm: If the wiper arm is bent and not perfectly parallel to the windshield, it will cause shaking.