New Keyless Entry 4 Button Replacement Remote Car Key Fob for Select Lesabre, Park Avenue, DeVille, Seville, Eldorado, Aurora That Use FCC ID KOBUT1BT 25665574 25665575 This is a brand new replacement keyless entry remote key fob for select GM vehicles: LeSabre, Park Avenue, DeVille, Eldorado, Aurora and more. Please check product description below for vehicle fit guide. Please make sure that your original remote has GM part number 25665574 or 25665575 and FCC ID: KOBUT1BT. There are two possible remotes for the vehicles listed in the compatibility guide and they are not interchangeable. This remote must be programmed by a qualified automotive locksmith or dealership. Replacement remote for GM # 25665574 or 25665575 and FCC ID: KOBUT1BT New complete working remote with all electronics and batteries included plus FREE tech support with every order. Every single remote is tested before it is sent to make sure it is transmitting.