Complaint Summary: I brought my 2015 Jeep Renegade Trailhawk (VIN: [XXX] ) to AutoNation CDJR Roseville on May 17, 2025, for the U90 emissions recall. The catalytic converter was replaced, and the PCM software was updated. However, the U0402 diagnostic trouble code (implausible data received from TCM) remains stored. This code has been persistent and prevents the vehicle from passing California emissions, which is required for my registration as the car was transferred from out-of-state. The service advisor initially stated that the TCM was updated, but later corrected himself and admitted the TCM already had the latest version and was not reprogrammed. I have not been given written confirmation that the TCM software or wiring was verified or addressed. I am concerned the dealership is refusing to properly resolve this under recall and is instead recommending a full transmission replacement without supporting mechanical codes or verifying the emissions system software/communication is compliant. Iam requesting FCAas assistance, and the BAR in California to enforce the complete and proper execution of the U90 recall and resolution of the U0402 code under recall scope. Please help ensure the vehicle is brought into emissions compliance. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)