AIRBAG HAVING MULTIPLE INFLATION CHAMBERS SUPPORTED ON A DASH

An assembly for a vehicle includes a dash. The assembly includes an airbag supported by the dash and being inflatable to an inflated position. The airbag includes a knee chamber, a chest chamber supported by the knee chamber in the inflated position, and a head chamber supported by the chest chamber in the inflated position. The chest chamber is connected to the knee chamber at a lower seam that defines a lower fluid pathway. The head chamber is connected to the chest chamber at an upper seam that defines an upper fluid pathway. The assembly includes an inflator supported by the dash and being connected directly to the knee chamber.