My unlocking problem is the tipm. Unbeleivably, it had to be replaced to the tune of around $300.
My advice to you would be to get rid of the jeep as soon as possible as these things have the poorest engineering of just about anything I've experienced.
I bought a super clean 2010 Liberty with 105,000 miles on it for my daughter six months ago because its what she really wanted. Come to find out, the heads on a 3.7 are notorious for cracking or blowing head gaskets, I'm replacing mine now. A $2400 job. The rear pinion seal is out and the doors won't unlock.
In comparison, my brother and I both bought 10 year old Mercedes ML430 and a ML 320 with 100,000 plus miles on them, they were built in Alabama. They are the easiest cars you'll ever work on and completely reliable. Four wheel drive 8 and 6 cylinders and parts are readily available.