The contact owns a 2014 Ford Explorer. The contact stated while driving 70 MPH on I-75, the A-pillar trim detached and was banging on the side of the windows. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Number: 24V031000 (Structure); however, the part to do the recall repair was not yet available. The local dealer was contacted. The dealer removed the trim down to the bolts. The vehicle was not repaired due to the parts being on backorder. 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 failure mileage was approximately 100,000. VIN tool confirms parts not available.