The Little Button on Your Seat Belt: What It Does and Why It’s Important

🧐 First of All: What Is That Little Button?

The small plastic piece — often called a “seat belt stop button”, “retainer button,” or “limit stop” — is a fixed feature attached to the seat belt strap itself. It’s usually found a few inches below the latch plate (the metal piece you click into the buckle).

It may be made of:

• Plastic
• Rubber
• Metal (rare)

And no, it’s not a decoration or accidental manufacturing blob.