If you are talking about the seat belt spool which the seat belt goes when it is disconnected. You will have to remove the panel that covers it. It is like a ratchet and if it gets pulled to far it can sometimes get stuck between teeth. So, the cover will either have screws and/or body clips retaining it. Remove the screws then gently pull on the cover to expose seat belt spool. Look for ratchet arm and the teeth on the spool itself. Hold the ratchet arm back and let the spring pull the belt in.
If the release is giving you trouble the only fix most of the time is to replace the belt.
Here are some diagrams (below) to help you get the job done.
Please let us know if you need anything else to get the problem fixed.
Images (click to enlarge)
Friday, June 2nd, 2017 AT 10:21 AM