Blow-molded active side bolster with tear tabs

An active bolster for a door of a transportation vehicle, comprising:

• a sheet metal door frame including a plurality of brackets;
• a door cover panel mounted to the door frame, the cover panel having a bolster aperture, a living hinge disposed around the perimeter of the bolster aperture, and a plurality of mounting bosses disposed around the perimeter of the bolster aperture;
• a blow-molded bladder arranged to fit within the bolster aperture having a Class A front surface substantially co-planar with the cover panel, having a pleated Class B back surface, and having a plurality of side mounting tabs extending laterally from the sides of the bladder, each side mounting tab attached to a respective mounting boss and including a respective tear seam configured to pull away from the respective mounting boss during inflation of the bladder;
• and
• a plurality of capture pins insert molded into the back surface, each captured by a respective bracket.