What are the reasons why car windows cannot be raised or lowered?

[Aaron]

Car windows cannot be raised or lowered for the following reasons: 1. The window lift motor is damaged or the wiring harness has poor contact. 2. The motor overheats, causing the protection system's activation components to malfunction. 3. Aging rubber seals prevent the glass from moving, affecting the window's operation. Related information is as follows: 1. Car windows can generally be divided into four types: front and rear windows, ventilation windows, heat-insulating windows, and sunroofs. Moving them up or down allows better air circulation between the car and the outside. Almost all cars are equipped with windows, and models like SUVs and sedans may also come with sunroofs. 2. If the car does not come with one-touch window control from the factory, it can be added later by installing a motor. For details, consult your local 4S dealership.

[VonJulia]

Last time my car window malfunctioned, experience told me the common issues lie with the switch, motor, or fuse. If the switch contacts are worn out, poor contact causes no response when pressed; if the motor is burnt out, pressing the switch produces no sound at all—once it reaches the end of its lifespan, it needs replacement. A blown fuse in the fuse box serves as a protective measure, and replacing this small component is sufficient. Sometimes, dust buildup or excessive dryness in the rails can cause the glass to jam; applying some lubricant can resolve this. Aging door wiring harnesses, especially with frequent switching, may lead to wire breaks, or unstable battery voltage can affect the entire circuit. Modern cars with anti-pinch functions may refuse to operate if not initialized—try disconnecting and reconnecting the battery. For safety, avoid forcing the glass while driving, as it may shatter and injure your hand. I recommend having the shop inspect the window system annually during maintenance, lubricating the rails and testing the motor—this reduces sudden issues and keeps repair costs low.

[SanJayden]

Most electric window failures are related to electrical circuits. There may be a short circuit in the switch, or oxidized contacts causing poor conductivity; the motor coil may be burnt out and unable to rotate; a blown fuse is an overload protection measure—find and replace the corresponding one in the fuse box. Wiring harnesses often get damaged or broken at door hinges, and you can use a multimeter to check voltage and identify the faulty section. Stable voltage indicates the power supply is fine, so the next step is to check the components. If the motor clicks but doesn’t turn, it might be stuck or the belt could be loose. Electrical components age faster when exposed to moisture, so keep the door interior dry during rainy seasons. It’s recommended to visit a professional electrical repair shop for diagnosis—tinkering on your own could risk electric shock. Safety first.

[LaAndres]

If the window won't roll up, it's likely a motor or track issue. An aging motor loses lifting power, typically lasting 7-8 years; if the track is clogged with debris or too stiff, applying some grease should help. A faulty switch with poor contacts won't respond when pressed. Listen for sounds: no noise indicates checking fuses and switches; noise without window movement means it's stuck in the track. Avoid forcing the glass when DIY-ing to prevent deformation. Simple maintenance involves regular cleaning of tracks and door seams.