Re: Test drove the 3.0L Diesel today!
It depends what the warranty issue is. If it is say a suspension issue thenit makes no difference if you have an aftermarket ecu or chip or whatever because that isnt related to the suspension.
There would only be a trace if there is some form of datalogging, in which case you can just claim that the car was stuffing up and the ecu was stuffing up, you didnt have a chip etc.
2012 Grand Cherokee True Blue CRD :D