Why can't the car window roll up or down after being rained on?
3 Answers
Here is the relevant introduction to why the car window cannot roll up or down after being rained on: 1. The window lift motor is damaged or the electrical control wiring harness has poor contact: If there is a burnt smell when holding down the window button or abnormal noise inside the door panel, it is likely that the window lift motor components are damaged. In this case, it is recommended to directly contact a 4S shop or auto repair shop to replace the window lift motor. 2. Motor overheating protection: To protect the power supply circuit, most window lift motors have an overheating protection mechanism. If the components overheat for some reason, the motor will enter an overheating protection state, causing the window to fail to roll up or down. 3. Excessive resistance in the glass guide channel: The door glass guide channel is a detail that is often overlooked. During use, dust can accumulate in the glass guide channel, increasing resistance, which over time may make it difficult for the glass to roll up.
My driving experience tells me that when car windows stop working after getting wet, it's mostly because rainwater has seeped into the system through door gaps, short-circuiting the internal wiring. Rusty tracks can also jam the sliders, preventing normal movement. I remember one time my car got soaked outside overnight, and the next day the window buttons were completely unresponsive. When I removed the door panel, I saw the wire connectors were all rusted. I quickly dried them with a hairdryer and applied some waterproof sealant to fix the issue. Regular car maintenance should include frequent checks of the window rubber seals to prevent aging and cracking. Try to avoid opening windows in the rain, and wait until everything is completely dry after the rain stops before operating them. If this problem isn't addressed promptly, the motor could burn out, costing a fortune to replace. For safety's sake, if you notice any issues, seek professional help immediately.
A few days ago, my car got caught in the rain, and when I tried to open the window afterward, it got stuck halfway. I went to the repair shop to ask about it, and the mechanic explained that rainwater had seeped into the door panel, causing the motor to get damp and short-circuit the fuse. They also demonstrated how to dry out the wiring and taught me how to prevent it in the future: after each rain, check that the drainage holes at the bottom of the door aren’t clogged. Now, whenever it rains, I pay extra attention to sealing to prevent water from corroding internal parts. For a simple DIY fix, you can try removing and resetting the fuse first, but don’t attempt to dismantle the motor yourself—it’s easy to make things worse. After getting wet, park the car in a dry place to let the moisture evaporate, and make sure the electrical controls are functioning properly before driving. In short, this issue can range from minor wiring dampness to major track rust—don’t take it lightly.
