This aftermarket replacement transponder key is designed specifically for Chevrolet Express and GMC Savana vehicles. The complete transponder ignition car key features high security technology with Part Number B120-PT and ID 46 chip. This remote fob car transponder requires cutting prior to use to match your vehicle's lock cylinder. Professional programming by a dealer or automotive locksmith is necessary to synchronize the key with your vehicle's immobilizer system. The package includes 2 remote fob car transponder keys, providing a convenient backup option for your vehicle access needs.