How do you unlock Volvo seat belt re-tractor?

To unlock a Volvo seat belt retractor, first ensure the seat belt is not twisted or jammed. Gently pull the seat belt out to its full length and then let it retract slowly back into the mechanism. If it remains stuck, check for any obstructions or debris in the retractor mechanism. If the problem persists, consult your vehicle's manual or a professional for assistance.