Thanks for the advice, I did take a quick look inside and didn't see any obvious obstruction, but I do intend to take a much closer look... with 4 kids God knows what might have found its way into it. If I can't get it cleared I will go ahead and replace the part, thanks to all again.

This worked for my 2005 S80 also, same procedure, but I am having a problem getting the new replacement lens to lock in place (I am replacing a broken lens, complete with new bulb). The old lens came out easily, but despite my best attempts the new lens refuses to click in, although it stays in plac...

I will give it a go, thanks

Hi-- my rear seat driver's side (leftmost) seatbelt won't engage, i.e. it won't "click" in place, just falls back out. Any advice? thanks to all who try!
ps- mileage = 67k if it matters