One problem related to check engine light on 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.
I bought my Jeep Liberty jet in Feb 2012 brand new out of the show room. I am a military vet and wanted a reliable car to drive in for my pcs moves. I started having vehicle shakes in 2013 for my 2012 Jeep Liberty jet. In December 2013 I took it to milton reuben Chrysler dealership for check engine light. I was also informed there was a safety recall on it that I was unaware of. The vehicle was in the shop for over a month for cylinder 3,4,7 misfires. The heads were replaced. In August 2014, not even a year after my vehicle was in the shop I had to return for shakes. My child was in the car at the time it was shaking violently. I called Chrysler, not the dealership, to complain of this safety issue and for long term help solving the issue. They basically said I was on my own and the dealership didn't want the vehicle as a trade in because of its lengthy wrap sheet. They replaced cylinder 3 and 7 again. I thought the worst was over until August 29, 2015 the shakes came back. I took it to dealership and they gave me a bill for $1100 for cylinder 5 misfire. The vehicle has less than 80,000 miles on a 100,000 mile warranty. It has been in the shop every year since we have had it for major work. The dealership doesn't want it and Chrysler is not taking responsibility for the fact they built a faulty vehicle. Every 20,000 miles I am having issues.