When you add in the fact that these mechanisms have an inertia lock that holds the belt firm during an accident the retractor itself can be complicated with many internal parts. Over the years I have found one of the leading complaints from drivers is that the spring that pulls in the slack or stows the extra seat belt stops doing so.
When it comes to floor mounted assemblies I have seen a few additional problems. Sometimes change like pennies and dimes can fall into the retractor and jam the ratcheting mechanism. I have also found small toys and debris that has worked its way down to the floor mounted assembly to also cause this kind of jamming problem.
These cups were known to come loose and the spring would jump out. The fix was the dealership technicians installed a retaining clip that snapped over the plastic cap to make sure this spring stayed in place.
If you have any seat-belt problem it is a good idea to call your local dealership and have them run your vehicle identification number to see if any seat belt recalls apply to your specific vehicle. Vehicle manufacturers usually jump on any common seat belt problems quickly because of the safety concerns involved.
About seat belts
I'm sure that you have noticed many safety features are now available as standard equipment that was only available as options a few years ago. Some of these include side impact airbags, built-in crumple zones in the body design, new technology added to seat-belts and automatic retractors, in addition to things like anti-lock brakes, traction control, and stability control.
As long as drivers consider passenger safety as an important factor to be considered when it comes to car buying we will most likely see additional safety features rolled out each and every year. A car-maker that comes up with new technology that saves lives has a large advantage in the marketplace.
If you would like to see the latest articles posted to the online auto repair blog this next leg will take you to the homepage from this page about seat belt problems.