I had a similar problem and convinced the used car dealer that cars come with 2 keys( if you lose your master you need a new computer parts and labor over 2000 plus a stuck car) It cost 150 for the key and 30 to program it. I have seen key blanks on ebay for 50. The problem is getting someone to cut it. Lexus getst he key cut from your VIN in Ohio not localy. I am not sure a local lock smith will cut the special lexus key. HTH