Mikes07JK

I went to have a spare key made today for my wife. Of course I drove her truck instead of the jeep, so after getting home it would slide into the key hole and ignition but that's it. No movement. So I drove the jeep back to the place that cut the key. Had another made and it worked! Kinda...it would unlock the doors and start the jeep....but after starting the jeep would die. Use my key it would start and run fine. Use the new cut key start and die. Over and over, any suggestions?

Grimmjpr

You need a key with a chip in it most likely, and it will also need to be programmed to the ECU. You will need two working keys to program it, or locksmith or dealer if you lost one...

jeepmojo

for a spare key lol serious

zstairlessone

So no one can cut a key and steal your Jeep... That's why jacking rich cars is becoming a hot issue, they need the key from you to sell as a whole running vehicle

Mikes07JK

I didn't think my key had a chip in it. Its got the fat oval shaped head. Same style that caravans had etc. If I can't get one cut cheaply,than I guess she ain't getting one.

ronjenx

Does your spare key look like the gray one in this photo? This one has a chip, but it still needed to be programmed into the Jeep's WCM..

Mikes07JK

Yep,that's it.

Olskoolkool

I have a key(s) with no built in fob. Also I lost my main key, only have the spare. Manual locks/windows/no remote start. Would my keys be chipped?

zstairlessone

Yep... If its the gray one

ronjenx

Any key that is cut to the lock will start the JK. It takes a recognized chip in the key to keep the engine running more than a few seconds.