Why does the car window make a squeaking sound when rolling up and down on rainy days?

[McValeria]

The reasons for abnormal noise when the car window is rolled up and down are as follows: Dust: If there is abnormal noise when the window is rolled up and down, it is caused by a large amount of dust accumulated in the rubber guide channel of the window. Therefore, resistance will increase during the rolling process, making it less smooth. Moreover, if there are some particles mixed in the dust, it will produce abnormal noise. Rubber aging: In addition to dust accumulation, rubber aging of the window can also cause abnormal noise. At this time, simply using lubricating oil can solve the problem. Spray it on the rubber; on one hand, it can lubricate, and on the other hand, it can maintain the rubber's toughness and reduce the occurrence of cracks. While solving the aging problem, it also plays a certain preventive role.

[MariaLynn]

I've encountered quite a few cases like this. The squeaking noise when rolling up/down car windows on rainy days is usually caused by rainwater entering the door gaps, which wets the sealing strips, increases friction, and makes rubber components stiff and sticky. For brand-new cars, the sealing strips may not be fully broken in yet, or there might be insufficient lubrication during assembly. Combined with rain and dirt sticking to the window frames, it naturally creates noise during operation. I've noticed many new cars have this issue, mainly due to inadequate attention to manufacturing details. I'd recommend avoiding frequent window operation during rainy days and visiting an authorized 4S shop as soon as possible for professional inspection. They should apply specialized lubricants and clean dirt from the sealing strips to ensure long-term proper functioning of the window system.

[RonanLee]

My new car had the same issue. The squeaking sound when rolling up the windows on rainy days was really annoying. I think rainwater caused the glass to stick to the rubber seals, increasing friction and creating noise. It could also be that the new car's sealing strips are too tight or have collected road dust, making them even stickier when wet. Later, during a car wash, I asked the technician to spray some automotive lubricant, and the noise reduced significantly. If the sound persists, rainwater might have seeped into the window track system. Since it's a new car under warranty, it's best to get it adjusted at the dealership. Regularly cleaning the windows, especially drying them promptly after rain, can help prevent this issue.

[DaisyRose]

It's quite common for new cars to make noise when rolling up or down the windows on rainy days. Excess moisture causes the weatherstrips to shrink, increasing friction against the glass and resulting in squeaking sounds. I've found this isn't a major issue and can be addressed with simple DIY solutions—like wiping the window edges with a soft cloth or applying some soapy water as a temporary fix. For new cars, it's advisable to visit the dealership for inspection to ensure no debris is stuck in the mechanism.

[HavenAnn]

As a family user, the noise from raising and lowering windows on rainy days concerns me about driving safety. After rainwater seeps in, the sealing strips become dirty or dry and hard, causing abnormal friction that can make window operation less smooth. Especially when picking up or dropping off children, the unusual noises can distract attention, which is unfavorable for driving. I recommend checking the window tracks for blockages or corrosion as soon as possible with a new car, and applying lubricant after cleaning the seals. Regular maintenance can prevent long-term hidden hazards.