A vehicle airbag assembly includes an attachment bracket, an elongated support member and an airbag. The attachment bracket attaches to a vehicle body member and includes a hinge portion. The elongated support member is pivotally connected to the attachment bracket for pivoting movement about a pivot axis defined by the hinge portion of the attachment bracket. The airbag is attached to the support member and defines a lengthwise direction. The pivot axis is non-parallel to the lengthwise direction. The airbag and the support member are movable together about the pivot axis. The hinge portion is configured to direct movement of the airbag and the support member from a stowed orientation to a deployed orientation upon inflation of the airbag.