An assembly for a vehicle seat includes an air bag module having an inflatable air bag, and a trim cover that covers at least a portion of the air bag module. The trim cover further has a deployment seam for allowing the air bag to deploy through the trim cover. The assembly also includes an air bag deployment member for guiding deployment of the air bag, and the deployment member has first and second sections. The first section is connected to the trim cover and extends toward a first side of the air bag module. The second section is connected to the first section at a location proximate the trim cover and extends toward a second side of the air bag module. Furthermore, the second section of the deployment member is not connected directly to the trim cover, and the deployment member is connected to the trim cover on only one side of the deployment seam.