If your vehicle is showing seatbelt webbing is frayed, cut, or torn, here are the most likely causes and the parts you'll need to fix each one.
Years of sliding through the upper shoulder guide loop and rubbing against clothing or seats naturally degrades the webbing fibers, causing the edges to fray.
A weak or dirty retractor can leave slack in the belt when unbuckled. The loose webbing then falls outside the cabin and gets slammed in the door latch or jamb, causing sharp cuts.
Dogs or other pets left unattended in the vehicle frequently chew on seatbelt webbing, resulting in localized tearing, puncture marks, or severed belts.
If the interior trim or seatbelt was recently removed for bodywork or repairs, the webbing may have been routed incorrectly, causing it to chafe against sharp metal body structures.
During a severe accident, the extreme physical force exerted by the occupant's body can stretch the webbing beyond its limits, causing the fibers to tear or permanently deform.