In at least certain embodiments, the vehicle seat assembly comprises a frame, a seat pad, a trim cover including a release seam, a connector to maintain the release seam in a closed position, and an air bag assembly within the trim cover. In accordance with this embodiment, the air bag assembly includes an air bag inflatable to project outwardly through the air bag release seam when the air bag seam is in an opened position. Further in accordance with this embodiment, the vehicle seat assembly further includes an air bag guide and a member comprising a first end portion secured to the air bag guide and a second end portion secured to the connector, with the member being movable in response to inflation of the air bag to break the connector to allow the tear seam to move to the opened position.