One problem related to automatic transmission control module has been reported for the 2012 Jeep Liberty. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Jeep Liberty based on all problems reported for the 2012 Liberty.
At 48k miles engine started having multiple cylinder missfires, too lean then too rich codes for cyclinders while traveling on the highway, brought to dealer, was charged $148 to replace O2 sensor. Drove vehicle out of the lot, and within five miles from dealer, experienced same trouble. After one and half weeks at the dealer, they had replaced 2 pcm modules, O2 sensors and then the catalytic converter. Vehicle was driven no less than 3 months and 5k driven miles after work was completed the engine started failing again with the same issue, stranding by disabled spouse 1400 miles away from home. Dealer now wants to remove engine head and rebuilt engine. Once was brought to the dealer, service agent told my spouse was advised that no transportation was hoping to be provided to her, since she was traveling with her service animal "a dog" . Even after they were advised of ada laws, and was told to drive the Jeep and have it towed back to the dealer at our expense. When I contacted doge Chrysler customer service, case number 30253034 I was told that they can't provide any assistance until the dealer diagnosed the issue, Jeep have been at the dealer for a week now, and service advise it sayd that is going to take another 2 days before they get it in the shop to look at it. .