He probably has the chip in it. My chip key head looks very similar to a "normal" key with a rubber head.
You can get it programmed at your local dealer. Some lock smiths can do it, but you have to have at least 2 programmed keys to program another one (at least that is how it is at one of my local lock smiths).
BTW- the shutting down is how the chip keys are supposed to work... starting and then shutting down after a few seconds...
His: 2000 WJ, 2.5" BB, mx-6 shocks, Rancho 5000 Steering Stabilizer, 245/75/16 MTRs, 1" addco rear sway bar, 9005 fog upgrade
Hers: 03 KJ, 5-speed, 245/70/16 General HTS
WTB: 1 Timberline wheel or a set of JK steelies