If your vehicle is showing seatbelt buckle release button is stuck, cracked, or missing, here are the most likely causes and the parts you'll need to fix each one.
Small items like coins, food crumbs, or small toys can fall into the seatbelt buckle, physically jamming the mechanism and preventing the button from pressing down or releasing.
Spilled drinks like soda or coffee can seep into the buckle mechanism and dry, causing the plastic release button to stick to the housing or become extremely hard to press.
Over time, the plastic release button can become brittle from UV exposure and crack, or break off entirely from repeated use, heavy impacts, or age.
The internal metal springs or latching components inside the buckle can wear out, bend, or break over time, causing the button to jam or fail to operate correctly.