A system includes a first webbing payout sensor configured to detect a first webbing payout of a seatbelt associated with a vehicle seat, the first webbing payout being a length of webbing extended from a retractor of the seatbelt, an occupant detection module configured to identify a state of the vehicle seat, the occupant detection module identifying an occupied state when an occupant is seated on the vehicle seat and an unoccupied state when the vehicle seat is free from an occupant, and a seatbelt wear condition module in communication with the first webbing payout sensor and the occupant detection module and configured to identify whether a seatbelt buckle extender is used in conjunction with the seatbelt based on the first webbing payout and the state of the vehicle seat identified by the occupant detection module.