A tension sensing assembly for a seat restraint system in a vehicle includes a rigid frame of a seat restraint buckle of the seat rstraint system. The tension seensing assembly also includes a movable member mounted on the rigid frame and adapted to be connected to vehicle structure. The movable member is movable relative to the rigid frame. The tension sensing assembly furtheer includes a magnet mounted to the rigid frame and a Hall effect sensor mounted to the movable member and cooperable with the magnet to change an output of the Hall effect sensor to indicate a tension level in the seat restraint system.