You do it every time you get in the car:
Slide the seat belt across your body…
Click it into place…
And go.
But have you ever noticed that small button near the top of the shoulder strap — where the belt meets the door frame?
It’s not broken.
It’s not loose.
And it’s definitely not just plastic.
That tiny button is actually a smart safety feature — one most drivers use without even knowing its name or purpose.
Let’s uncover what it really does — so you can use your seat belt more comfortably, safely, and confidently.
Because real innovation isn’t always flashy.
Sometimes, it’s hiding in plain sight — right by your shoulder.
🔍 What Is That Button Called?
It’s officially known as the Seat Belt Height Adjuster Release — but most people call it:
The seat belt slider button
The shoulder anchor release
Or simply “that thing that moves the belt up and down”
📍 Located at the top of the shoulder harness (on the B-pillar, near the door)
✅ What It Actually Does
Pressing this button allows you to adjust the height of the seat belt’s upper anchor point — so the shoulder strap sits comfortably across your chest.
Why This Matters:
✅ Belt too high? Rubs against neck or throat
Lower it for comfort
✅ Belt too low? Slips off shoulder during a turn
Raise it to stay secure
✅ Tall or short driver? Standard position doesn’t fit
Customize for your body
💡 One size does not fit all — this adjuster helps the seat belt fit properly for different body types.
🛠️ How to Use It (Step-by-Step)
Locate the button — It’s usually a small, round plastic tab near the top of the seat belt guide.
Press and hold — Push it in with your thumb or finger.
Slide the belt up or down — While holding the button, move the entire seat belt guide along the track.
Release — Let go when the belt rests comfortably over your shoulder (middle of collarbone).
Test it — Tug gently — it should stay locked in place.
📌 Ideal position: The shoulder strap should cross your mid-chest and mid-shoulder, not your neck or arm.
✅ Who Should Use This Feature?
