What the Little Button on Your Seat Belt Really Does – A Tiny Feature With a Big Purpose

Height, shoulder width and clothing layers all affect how a seat belt fits.

The height adjuster allows each driver and front passenger to set a belt position tailored to their body rather than relying on a fixed mounting point.

A correct fit means that the belt:

  • Crosses the middle of your shoulder and chest, not your neck or upper arm.
  • Lies low and snug across the hips, not across the abdomen.
  • Remains flat without twists or folds in the webbing.

What it is not designed for

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