You can have a second ignition key made at you local lock and key shop. I didn't need two master keys, and didn't have to go to the dealer to have it made and programmed. Dealer wanted about $150.00 to do it. The lock smith ask what year it was, cut the key and plugged in his reader for about 10 min.s and the job was done. Cost was $60.00 which is less then half what the dealer wanted. Sure glad I asked!