When you travel in a car, when you sit in the back seat, you want to get some fresh air or watch. But in most cars this can be frustrating. Because many cars have rear windows, instead of opening completely like windshields opens half way. So why?

We’re sure a few reasons come to mind when you think about it. But the reason why car manufacturers design these glasses this way It may not be what you think. Let’s see why the annoying rear windows can’t open all the way.

For safety reasons, you might think that the rear windows are not fully open.

One of the first ideas that comes to mind is sitting in the back seat. the safety of children or pets has been. However, on some cars, more than half of the rear windows can be opened. Therefore, the remaining small glass leaves a large opening that a child or dog can easily get out of. It’s not very hard for a child or a dog to get out of here.

Of course, the height of the children in the age of mischief and our animal friends does not fully reach the open part of the glass As a result, a small precaution is provided. However, this is not the main reason why the windows cannot open fully.

Actually they don’t open, they can’t open.

The rear wheels of the cars are placed closer to the door compared to the front. That’s why the back doors bent down You can see what you have. Especially in hatchback model cars. placed closer to the door This bend is much deeper through the wheel arch.

Due to the curved design of the doors, the place where the glass can go down is limited. In other words, the rear door glass doesn’t actually open; cannot be opened. Therefore “will it not open anymore?” If you insist by saying: You can break your car window.

Although the doors of some cars have a curve, the windows can be opened completely.

The reason for this is quite simple. Butterfly glasses that we think have no function, behind wheel arch placed on it. In other words, the butterfly glass covers most of the curve in the door’s design. What remains is a flat area where the glass can be fully opened.

As you can see in the photo above; Thanks to the size of the butterfly glass, our little friend can comfortably look out through the fully open window. In most cars like butterfly glass can’t save Because there are large curves, a small part of the glass can remain up.

The situation may be slightly different if both rear windows do not open equally.

If one of your rear windows opens half way and the other opens more than half, it most likely is. you broke the glass it means. Because the pieces of broken glass get stuck in the door, preventing the glass from falling straight down.

Another common reason is; in the mechanism that allows your glass to go down, ie in the window motor problems that may arise. There are several ways to understand when you encounter such situations. If your window gets stuck, won’t open, and makes noises when you try to open your window, you may have a malfunction or broken glass motor. Of course, you can encounter similar situations in issues with the general electrical components of your car, crashes after an accident. For this reason, it is best to take an industrial route…

So what do you think about these windows not opening all the way? Are you one of those who get nervous or one of those who see it as a safety measure and don’t think it should be opened all the way? Let’s meet in the comments.

• Sources: Gear Patrol, a man and his gear, Kwik Kar, JD Power
• Image Sources: Motor Hills

If you are still wondering what the function of butterfly glasses is, you can take a look here:

Did you know that the little ledge on top of the cars hides a lot of things?