Internal control module (main computer) issue. Expensive to fix, so maybe try resetting, especially if it is not drivable. Have never done this on a Jeep, but here are steps: Disconnect battery cable (negative, then positive). Press and hold brake pedal for at least 30 seconds (ensures no residual voltage in system). Reconnect battery cables (positive, then negative). Start and run. Give it time (several starts and several miles of mixed driving) to re-learn.
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