Check the seat belts, buckles, latch plates, and guide loops for obvious damage and signs of wear. Ensure that the seat belt reminder light activates when the key is turned to the Run or Start positions, accompanied by a chime. The seat belts are designed to lock up during sudden stops or impacts while allowing free movement during normal driving; verify that the retractors return the belt against your chest while driving and rewind the belt fully when the buckle is unlatched. If any checks reveal issues with the seat belt system, replace parts as necessary.