Aftermarket Cadillac Xts replacement keys: 9 in-stock listings for model years 2013–2019, including key fobs, from $27.70. Common FCC IDs: HYQ2AB, NBG009768T. Match the FCC ID and part number on your current key, or use our free VIN lookup. Keys are not OEM and most need cutting or programming; eligible items can be returned within 90 days.