hardtopper
Member
My suspicion is they exceeded the total number of keys that can be programmed into the SKIM module. That pretty much explains why the two non Jeep branded keys work and the preferred one does not. I also suspect that the only fix since the keys can not be deleted from the SKIM (that I am aware of) is to replace the SKIM module, pair it to the PCM, then program the existing key and the 2 replacement Jeep brand keys to the new module.
That makes me soooo glad I don't have the Sentry key system, knowing now how poorly thought out it is behind the scenes. On other vehicles that I've dealt with immobilizers and key reprogramming, old ones just get pushed off the back so new ones can be programmed. I'll take the ease of a $2 key from the hardware store over that headache (and the ever so slight theft deterrance peace of mind) any day!