An airbag system assembly configured to be positioned in the interior of a vehicle that includes an aft wall configured to be positioned forward of a passenger seat and an airbag system. The aft wall includes front and aft surfaces and the aft wall includes a first flap that is formed by a plurality of weakness lines in at least the front surface thereof. The airbag system includes at least a first airbag module having a first airbag support plate with front and aft surfaces. The first airbag support plate is secured to the front surface of the aft wall, and the first airbag support plate includes a first airbag that is configured to deploy in the event of a crash condition and that is disposed on the aft surface of the first airbag support plate. The first airbag is positioned adjacent the first flap.