If you’ve ever installed a child seat, you know how important every detail is. A properly positioned seat belt makes installation easier and allows you to quickly check that everything is in place. The locking button keeps the buckle at the correct height, making operation simpler and more intuitive.
This also prevents the loop from getting stuck too low, which can complicate installation and require repeated adjustments. A small time saving, certainly, but above all, welcome peace of mind for parents, and an often overlooked detail of car safety .
What if the button disappears?

Over time, wear and tear can take its toll. This button can sometimes loosen or fall off. It’s often noticeable when the buckle starts to slide down consistently. The good news is that replacement buttons are available, easy to install, and very affordable.
You can find them in specialist stores or online, often in the form of small kits. A simple, quick repair that immediately restores your belt to its original comfort.
The next time you fasten your seatbelt, take a look at this tiny button: it proves that, in the car as in life, it is often the small details that make all the difference.