You do it without thinking:
→ Slide the seat belt across your chest
→ Click it in
→ Off you go.
But have you ever noticed that small, often-overlooked button on the shoulder strap—right where the belt meets the B-pillar (the vertical post between your front and back windows)?
It’s not a defect. It’s not decorative.
It’s one of your car’s quietest—but most important—safety features.
And chances are, you’ve been using it for years… without even knowing its name or why it’s there.
Let’s pull back the curtain on this clever engineering detail—so you can ride safer, more comfortably, and with full confidence in your vehicle’s design.
What Is That Button? Meet the “Seat Belt Height Adjuster”
That little tab or button is officially called the seat belt height adjuster—and it’s designed to customize the fit of your shoulder strap for optimal safety and comfort.
