What Causes the Abnormal Noise When Raising and Lowering the Window?

[Valerie]

The causes of abnormal noise when raising and lowering the window may include aging of the rubber strip at the lower edge of the window or foreign objects stuck in the window gap. Below are the specific reasons for the abnormal noise: 1. Aging of the sealing rubber strip: Many cars have fast window movement when newly purchased, but over time, the speed slows down, and there may be sticking and abnormal noise during operation. This is due to the aging of the rubber strip at the lower edge of the window. When the rubber strip ages, the friction increases, leading to abnormal noise when operating the window. The solution is to replace the rubber strip. 2. Precautions: When parking, try to avoid parking in places exposed to direct sunlight, as this accelerates the aging of the sealing rubber strips on the car body. If the sealing performance of the rubber strips deteriorates, water may leak into the car during rain.

[DelSara]

I've been driving for over a decade, and window rattling noises are quite common. It's mostly caused by accumulated dust or sand in the tracks, making the glass squeak when moving up and down. Hardened or cracked rubber seals due to aging are another reason, and lack of lubrication over time makes the friction noise more noticeable. If the noise is sharp or accompanied by vibration, it could be an issue with the window regulator motor or internal gears—wear or jamming in the motor can produce strange sounds. Sometimes, loose window screws cause rattling from loose parts. If left untreated, the window might get stuck, especially during rain when water leakage becomes a problem. I recommend cleaning the tracks and applying silicone grease. If that doesn’t work, visit a repair shop—don’t delay and end up spending more later.

[VanEvan]

I often encounter window rattling issues myself and have concluded that improper lubrication is the root cause. The areas where the glass contacts the tracks and seals during operation tend to dry out, causing creaking or screeching sounds when friction occurs due to lack of lubrication. Dust and small stones entering the sliding tracks can also trigger squeaking noises, making regular cleaning crucial. When weather changes significantly, rubber aging accelerates, and increased cracks lead to rattling. If the sound becomes sharp with noticeable vibrations, be cautious as internal components of the window regulator might be failing. Simply put, keeping some window lubricant spray handy for the tracks and performing weekly cleanings can prevent most issues. Staying vigilant during daily driving for early detection and resolution helps avoid situations like being unable to close windows during heavy rain at night.

[Matteo]

A while ago, my car window was making a buzzing noise, and it turned out to be dust buildup in the side sliding rails that hadn't been cleaned. When I opened the door, I saw that the gaps were full of dust and small particles, causing the glass to slide unevenly and produce strange sounds. Later, after wiping it down and spraying some lubricant, the noise was gone. Other possible causes include hardened or aged sealing rubber, which increases friction noise; loose screws that rattle during window movement; or even worn-out regulator gears or motor issues. But based on my experience, dust is the primary culprit. Try simple cleaning and lubrication first—it usually solves the noise problem in most cases.