Originally Posted by ROBDOG1
They extend all the way out and then when you click them they come back around your neck and stay locked.
Originally Posted by KooL
If you don't pull them out all the way, they won't "ratchet" and lock. They'll still have give to them. The locking of them is some kind of safety deal. Children oriented, I think?
Kool's right. I've got two toddlers, so I'm familiar.
Most belts in the rear seats do this for purposes of installing a car seat. You pull the belt all the way
out, thread it through the car seat, buckle it, and then feed the slack back. The belt is then locked and won't give out any slack for any reason until you unbuckle it and feed the entire length back to "reset" it.
As Kool said, to avoid it, just don't extend the belt all the way when you're putting it on. It then functions normally as you would expect.
This is one of the most common mistakes in installing car seats--folks don't realize that you need to pull the belt out all the way first.