Aftermarket Lexus Ls500H replacement keys: 16 in-stock listings for model years 2018–2021, including key fobs, from $65.60. Common FCC IDs: HYQ14FBF. 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.