The contact owns a 2014 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags); however, the part to do the recall repair was unavailable. The dealer was contacted; however, the contact was informed that parts were on back order. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.