Yes. Some cars (notably Hondas) do not let you self-program keys; rather it must be done with a scan tool. The era of push-button start has ushered in crazy-e

Yes. Some cars (notably Hondas) do not let you self-program keys; rather it must be done with a scan tool. The era of push-button start has ushered in crazy-expensive key fobs. As the other poster pointed out, vehicles that do allow self-programming generally require two known keys present to program a third. Most people don't realize this until they've lost one of the two OEM keys.