5 Causes of Power Windows not Working in a Car

The days of there being crank windows in automobiles are over. Virtually every new vehicle made today contains power windows. These are basically electric windows which require electrical power in order to function properly.

It is very convenient to operate a power window because you just need to push a button on your door to open and close it. You don’t need to go through the hassle of rotating a crank handle with your hand. This is just one example of how technology has made life so much more convenient for drivers.

However, there is one downside to having power windows. If there is ever an electrical problem with your vehicle or the electric motor inside the door fails, you will not be able to open and close your window until you get the problem fixed.

This would never happen with a crank window system because it uses manual human power to open and close it. But still, it is not that big a deal because it will not impair your driving abilities.

Meanwhile, you will need to take your vehicle to a local mechanic or dealership and have them restore the functionality of your power windows.

Common Causes of Power Windows Not Working

There are several reasons as to why your car’s windows might stop working. Here are five of the most common culprits you should be made aware of in case it happens to you.

1) Bad Window Regulators

The mechanism that allows a power window to move up and down is called a window regulator. Each car door with a power window has a window regulator to move it.

If the regulator goes bad, then pushing the up or down button will not make the window move. You will need to have the window regulator replaced.

2) Bad Window Motor

Every power window requires a window motor to supply the electrical energy. There is a gear at the end of the power window motor which connects with the window regulator.

When you press the up or down button on your door, it activates the window motor which then allows the window regulator to move the window. If you have a bad window motor, then the power to move the window will not exist.

3) Snow and Ice

If you live in a region with a lot of snowy and icy conditions, this could compromise the functionality of your power windows. The reason is that the glass of the windows will stick to their frames.

Regulators are not always strong enough to force a window away from its frame if they’re frozen together. Even if it can do that, the regulator will get worn out a lot faster.

4) Bad Power Window Switch

The switch on the side of your door may not be functioning properly. Each time you press down on the up or down part of the switch, it wears the switch out just a little bit more. If you press it too aggressively or use it on a regular basis, there may come a point when the switch stops working properly.

This would actually be the best-case scenario whenever your power windows are not moving. It is very cheap to replace a power window switch in comparison to fixing the other possible problems that it could have been.

Read also: 7 Main Parts of Airbag Systems

5) Wiring Issues

There are a series of wires which connect the window switch to the window motor. Although it is uncommon for wiring problems to exist in the door, it is still possible for it to happen.

For instance, if another component in your power window system was repaired recently, the mechanic may have inadvertently damaged or cut one of the wires. This will require you to take another trip back to the mechanic to have them fix it.

9 thoughts on “5 Causes of Power Windows not Working in a Car”

  1. what might cause two windows to go out at once? Both of my passenger side power windows went out at the same time on my 96 honda passport. I checked the 30A fuse, and it seems to be good, so I’m working on getting the relay now

  2. Both my diver and passenger windows quit working within a week of each other. There is power to the switch and it seems like they want to work.

  3. My drivers door + passenger doors windows won’t open ive been to garage but they say no electric problem or fuse problem.

    • If none of the windows work, it IS an electrical problem. My guess is the driver door window switch is bad. Since all the wiring for the other windows goes through it, it would cause them all to not work.

  4. I have 84Trans Am my driver window stop working, Now my passenger window has stop to. I’ve pulled both switches to check them. Had power in passenger side.

    • Hi Allison, check your fuses to make sure none are blown. Your owner’s manual should help you determine which fuse is used for the power windows. If this information cannot be found in the manual, you may try googling for “2008 buick enclave window fuse” to figure out which one. Good luck on your search.


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