Volkswagen Group of America (Volkswagen) is recalling certain 2011-2017 Audi Q5 vehicles. The sunroof drainage system may allow water to soak into the foam surrounding the side head air bag inflator canister resulting in the corrosion of the canister. If this happens, the corrosion can weaken the canister and the inflator could fracture without air bag deployment, propelling fragments into the passenger compartment, striking and causing serious injury to vehicle occupants.