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Check Engine - DEF problems

170K views 267 replies 86 participants last post by  John Jeep  
I am basically a ditto head to all the previous comments. Started having issues back in June and been in and out of the deal ship with software updates. My Jeep has been at the dealership since Dec. 27th with me finally having to take the TSB about the catalyst replacement.

The dealership intially told me there was crystalization contamination which I laughed at... Had to let them know there was an actual dqevice to check for contamination...and again pointed out the issues with the catalyst The service advisor said he would relay that on...