Stuck seatbelt prius

SOURCE: 2002 Toyota Solara Convertible seat belts not retracting

The front seatblet retractor springs have weakened. Unfortunatly, there are no "user serviceable parts" on them. They would have to be replaced. How many miles is on it? If you have low mileage, the Toyota Customer Experience Center may provide you some assistance, as the belt replacements are quite expensive. I'd call the CEC and explain your dilemma. Here is the number: 1-800-331-4331

SOURCE: replace rear seat belt in 1993 Toyota Corolla

OK. On the front edge of the seat bottom cushion, pull up hard, both sides. This will dislodge the 2 clamps that holds the seat cushion to the floor. Pull the seat cushion out & set it aside. You will now see the female latches bolted to the area where the rear of the seat cushion meets the rear seat back bottom. Remove the bolts (14 mm I think).

SOURCE: Electric retractable seat belt problem

can you help with this problem

SOURCE: my drivers side automatic seatbelt is stuck on the

Open small plastic access panel located between front and rear doors a few inches above floor. Disconnect the two wire connector (usually attached to car frame) and locate the male pin connector, usually 1 red and 1 blue wires. Run two long wires from a car battery neg. post and pos. post (battery on the car or separate.) Hold one wire against one pin of the connector and quickly touch the other wire against the remaining pin. This will cause the motor to turn in one direction. If motor turns in wrong direction simply reverse the wires until motor brings belt to desired position then quickly remove the wires. Reattach connectors to resume 'normal' operation after 'CAUSE' has been repaired.

SOURCE: automatic seatbelts to manual seatbelts

if i were you i would try to make the ones from either the mark 3 supra or try the es250.. im trying to get it to work with the supra but i think your best bet is from the lexus es250. they share the same chassis obviously so most parts are interchangeable.