Fix a Squeaky or Slow Car Window in 5 Easy Steps

Is your car window squeaking when rolling it up? How about the glass being ‘sticky’ and too slow to move? If you’re facing these issues, you only need to perform a few steps to restore the smooth function of your car windows. The following are the easy solutions you can do at home:

5 steps to fix slow or squeaky car windows

Step 1. Apply a lubricant

The first thing you should do to fix a squeaky car window is applying a moly lubricant. Next, you should apply the lubricant inside the seal of the window frame. This will help dislodge any dirt that causes the squeaky noise or slow movement of the auto glass.

Make sure that you spray the lubricant at the top of the window frame. This will allow the excess to slide down inside. Don’t worry about the mess since you can wipe it later on.

Step 2. Repeat it on the other side of the windows

Next, you need to apply the lubricant to the other side of your car windows. Make sure that the lubricant is evenly applied along the vertical frame down to the corner seal at the bottom.

If there is an excess lubricant, wipe it using a clean microfiber towel. Do this step on all affected car windows.

Step 3. Let the lubricant sit for a few minutes

Once you’re done applying the lubricant, let the solution sit for a few minutes. This will allow the lubricant to spread inside the window seal.

After that, roll your window up and down a few times. This will spread the lubricant even more while dislodging any accumulated debris. The auto glass should go up and down fully without any bumps or squeaks.

Step 4. Re-apply the lubricant

If your car window still produces noises, you can re-apply the lubricant. Do this while the window glass is rolled up. That way, when you roll it down, the lubricant will be spread inside the car door components where the squeak might be coming from. Apply the lubricant lavishly so it will penetrate beyond the window seal.

Step 5. Clean up

Lastly, repeat all the steps above as necessary. Always keep a clean towel handy, so you can prevent the excess lubricant from causing streaks on your car paint.

Once you’re satisfied with the results, wipe the rubber seal of the car window after a few hours. You should also remove any leftover lubricant that could attract dirt. After that, you can clean your car windows with the usual glass cleaner and towel.

However, if the squeaky noise from your window isn’t going away after lubrication, it’s best to visit an auto glass shop. There might be a problem within the window mechanism that requires repairs.


Squeaky windows are annoying. The good news is that there are easy steps for a quick fix, which you can perform at home. Still, you should bring your car to an auto shop periodically for a professional inspection. An auto glass technician can also provide permanent solutions if the squeak on your windows keeps coming back.