If you bought it new and you keep taking it in, providing the miles are low enough, try to lemon law it. At least if they can't fix it they can buy it back. I highly recommend that you consult a lemon law attourney. Don't believe what people tell you when they say it doesn't work, that's what it's there for. If nothing else happens maybe the dealer will get off their butt and do the right thing even if it means replacing the engine.
2010 Liberty KK Sport, deep water blue, weathertech in channel vent visors, weathertech digital floor mats, Detoures backbone winch mount w/smittybilt XRC 10 comp winch, rigid industries dually led lights on smittybilt fairhead mount, Rocklizard skink supersliders and Gecko safari rack, cobra cb w/48" firestick antenna, general grabber at2 245/75-16, OME heavy duty springs, OME shocks, about 3" - 3 1/2" of lift, Detoures Knucklebone spare tire and Jerry can mount, mopar skids, class 3 hitch w/7 pin wire harness, headlight covers, 4.10's and Detroit TruTracs F&R