I currently own two of the same year vehicles. They BOTH have the same problem with the ECM. I have also spoken with multiple people who own Jeep vehicles @ the same year. We all seem to have; lifter, Rod knocks, oxygen sensors and ECM that have caused multiple other problems (and severe accidents) due to their malfunctioning. I have had both of my vehicles to licensed mechanics, who have advised me of the same problem. One of the 2011 Jeep Libertys have been owned by me since brand new, the other was bought used. PLEASE PLEASE help us out!!! I have spent so much money trying to repair these vehicles!!! THE ECM & OXYGEN SENSOR need to be recalled!!!