From Houston driving through Louisiana last week and jeep transmission downshifted (default mode). Drove to closest dealership and dropped off and rented car. Dealership identified the problem as a bad ECM module. Ordered a new one installed it and the new ECU isn't programing properly. Vin # is installed but the ECM won't store the key code (or so I'm told).

What are these Rantards doing wrong at this dealership? Help, Advise, 2 cents would be appreciated.