I just had the common problem fixed of the rear seatbelt getting stuck because it was retracted too far. After a trip to the dealer and having them install new "buttons/stopper" on the belt, I went home to reinstall my son's child seat.

When I reinstalled the child seat, I was being VERY mindful of the position of that button on the belt. As my seat is getting tightened, that rivet is right at the car's buckle. Then I put my knee on the seat and shoulders on the roof and crank down like there's no tomorrow! PROBLEM IS, THE BUTTON NEEDS TO GO THROUGH THE BUCKLE AT THIS POINT. THIS IS WHEN THE BUTTON BREAKS OFF!!!

So what I did to prevent this was to unbuckle the seatbelt, feed the belt through to get the button out of harms way, then with the knee and shoulder trick, get teh buckle back in (kind of how one puts in a seat when using one of the locking clips, if your car didn't have the "child" position on the buckle that volvo and saab have).

Then, once the belt is buckled and safely past the button, CRANK AWAY!

One last thing, I'll never put down my rear seats without checking to tsee if I still have those buttons in place.

Just wanted to pass on what I've learned the hard way.