Aftermarket GMC Yukon replacement keys: 23 in-stock listings for model years 2007–2023, including transponder keys, key fobs, from $17.20. Common FCC IDs: YG0G21TB2. 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.