| CPC B60R 21/2155 (2013.01) [B60R 21/207 (2013.01)] | 20 Claims |

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1. A vehicle, comprising:
a body defining a passenger compartment;
a seat assembly comprising a backrest portion; and
an airbag system positioned behind the backrest portion relative to the passenger compartment, and comprising:
a housing comprising an opening and a door engagement component;
an airbag, configured to expand from a stowed state to a deployed state in response to a trigger, wherein the airbag: (i) is located inside the housing while in the stowed state, and (ii) extends out of the opening while expanding to the deployed state; and
a hinged door comprising a free end, wherein the free end is configured to:
engage with the door engagement component while the airbag is in the stowed state, such that the hinged door extends across the opening to close the opening; and
disengage with the door engagement component and pivot away from the opening due to the airbag expanding to the deployed state.
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