I have a Nissan with "keyless ignition" (push-button start) and it came with two keys and a small piece of metal with a five digit code stamped on it. Apparentl

I have a Nissan with "keyless ignition" (push-button start) and it came with two keys and a small piece of metal with a five digit code stamped on it. Apparently if I lose my keys I just need that five digit code to have new keys programmed.