So I bought a new to me (2016 Renegade w/15,430 mi). Had it 2 weeks, check engine light on. Brought it back to dealership, said it had to go to jeep dealership. I asked what codes it was throwing, they provided the 2 it showed. FF a few days, dealership has no update.. I call the jeep dealership it was at and was told it had MANY stored codes, a laundry list of them... but they couldn't do anything about any of them since none of them were active, and there is no active check engine light on at the moment (because when 1st dealership hooked it up to scanner, the dummy cleared the codes). Here's my question now that you know the basic back story. Can stored codes be fixed? The 2 provided to me were "communication" type codes.. and the only thing they are actually doing is replacing the damn radiator due to the recent recall/issues. Um, what about the communication problems?? Doesn't the jeep dealership have the ability to investigate the stored codes and fix the actual problem?? Anyone else run into this?