How do you unlock seat-belt on s80 Volvo?

To unlock the seat belt in a Volvo S80, simply press the red release button located on the buckle. This will disengage the latch and allow you to pull the seat belt away from your body. If the belt is stuck or jammed, check for any obstructions and ensure the seat belt is properly aligned. If problems persist, consult the vehicle's manual or a professional for assistance.