The present teachings provide for a vehicle seatbelt positioner. The vehicle can include a pillar and seatbelt. The seatbelt positioner can include a cassette, router, and tether. The cassette can be mounted to a first side of the pillar. The router can include a guide body configured to releasably couple the router to the seatbelt. The router can be movable between an extended position in which the router is spaced apart from the pillar, and a retracted position in which the router contacts the pillar. The tether can have a first end coupled to the cassette and a second end coupled to the router. When the router is in the extended position, the tether can extend through an aperture defined by the pillar to a second side of the pillar. The cassette can be configured to retract the tether toward the cassette to position the router in the retracted position.