What is a window regulator?
A window regulator is a mechanism that allows your car’s windows to move up and down—and keeps it in proper alignment when doing so. In vehicles with power windows, an electric motor will help what’s usually a cable-operated regulator lift the window or lower it down when you hit the power window switch.
On a vehicle with manual windows, you’ll likely have what’s called a scissor-type regulator inside the car door that will raise and lower the window while you crank it open or closed.
When should I replace the window regulator on my car?
These are some of the main signs you’ll notice when your vehicle’s window regulator needs to be replaced:
Window won’t stay rolled up: If your window starts sliding down from a closed position without warning, it may be due to a failing window regulator.
Window glass is crooked: Your window regulator helps keep your vehicle’s window properly aligned—so if it starts going slant, it may be a sign that it needs to be replaced.
Strange noises: If you hear noises like grinding, squealing, or clicking when operating your vehicle’s windows, this may be a sign that the window regulator is failing.
How often should a window regulator be replaced?
You don’t have to worry about replacing a window regulator unless it’s stopped working. A window regulator could very well last the life of your vehicle, but just like any part, they sometimes fail early for various reasons.
Can I replace my window regulator myself?
In many cases, replacing a window regulator is a relatively straightforward job, but it does require some caution. You’ll need to remove your interior door panel to access the regulator, and you’ll need to handle the window carefully so you don’t accidentally shatter the glass.
If you don’t feel comfortable replacing a window regulator yourself, a certified mechanic can take care of this repair for you.