There’s little doubt that a power window that has stopped moving can be annoying, but it’s also a sign of something amiss in your power window system. If left alone for an extended period of time, whatever is causing the issue could even worsen and eventually affect other parts of the power window system.
Furthermore, the window being stuck in either the up or down position makes it more difficult to control the cabin temperature. It also leaves your interior vulnerable to damage from weather and other elements.
How this system works:
Your power window system is actually quite simple, which limits the number of potential causes for your glass to remain stuck in one position. The system is powered through a motor, which is connected by wiring to a fuse. That motor creates rotation, and the regulator inside the clutch changes that rotation into the vertical up-and-down movement of your window, which is held in place by a track guide. If any part of that system breaks, it can cause your window to stop moving up or down.
Common reasons for this to happen:
Worn window switch: Window switches typically get a lot of use and abuse. The contacts inside the switch can wear out and prevent power from going to the window motor, which causes the windows to stay in the up or down position.
Bad window motor: Over time, the window motor can wear down or even break entirely, which will prevent your window from moving at all. Aside from the obvious symptom of a stuck windowpane, this type of problem may be accompanied by a whirring or labored sound.
Faulty window regulator: When the regulator breaks, it can also cause your window to become stuck in either the up or down position since the motor’s rotation can’t be converted into vertical movement. In this case, you can usually hear the power window motor run when you press the window’s control switch. There are times, however, when a bad window motor or window regulator manifest a problem in the same way, requiring the removal of the door panel for a closer look and testing with proper diagnostic tools.
Worn or broken window track guides: Track guides inside your window keep the glass in place as the system moves it up and down. If, however, the pane comes off the track, it won’t be able to move at all. In this situation, there may be a rattling noise when you attempt to operate your window from the components moving loosely around. This issue can present itself in vehicles with either power or manual windows.
What to expect:
A top-rated mobile mechanic will come to your home or office to determine why your window does not move up or down. It may be necessary to remove the door panel to look closely at the components of the window system.
After the inspection, the mechanic will provide a detailed report that describes the source and cause of the window movement issue, along with the scope and cost of the necessary repairs.
How important is this service?
The good news is that a stuck window won’t prevent you from making it to work on time or jetting to the store. The bad news is the problem won’t go away on its own. If your window is stuck in the up position, you may have to rely on air conditioning for temperature control more than you typically would, and avoid drive-through windows. A window stuck in the down position leaves any valuables within your vehicle and the vehicle itself at risk of damage or theft.
Regardless of your window’s position, however, it is possible that a failing component could damage other parts of the window control system and increase total repair costs in the future. It’s advisable to have the issue diagnosed promptly.