Automatic Transmission Control Module problems of the 2019 Chrysler Pacifica

My 2019 Chrysler Pacifica experienced repeated electrical/network communication failures. The first sign was erratic dashboard behavior and a check-engine light in our resort parking lot. We drove to pep boys, where it was evaluated and we were told it was okay to drive. We then drove to chick-fil-a (. 4 miles from pep boys). While stopped in the drive-thru in drive with my foot on the brake, the vehicle began dinging, the engine revved, and multiple warning lights/messages appeared, including the check-engine light, red electronic throttle control warning, “blind spot alert temporarily unavailable,” “service trans stop safely shut off engine to engage park,” and “stop/start not ready. ” after shutting it off, it would not reliably restart, and when it did, I could not shift it to move. The vehicle returned to pep boys, where dtcs u0001 (can c bus) and u0401 (implausible data received from ecm/pcm) were documented. It then went to a Chrysler dealership in florida. They evaluated it and told us it checked out and was okay to drive. After leaving that dealership, the problem returned while my family and I were traveling at highway speed. The vehicle malfunctioned and began losing acceleration. I exited the highway. When I stopped at a stop sign, the vehicle died. It restarted but again would not shift. Eventually we were able to reach a nearby gas station. The problem continued intermittently as we tried to get home. Because we could not predict when it would happen again, we determined it was unsafe and had it towed. A Chrysler dealership in georgia then documented numerous loss-of-communication codes and performed a pcm software update. The vehicle passed testing and was released, but the problem returned again after we returned to ohio. The vehicle was ultimately towed to a Chrysler dealership in ohio. The communication faults became active during diagnosis, and the dealer replaced both can-c and can-I splice-block connectors. The problem has not recurred since.

Requesting an n. H. T. S. A. An investigation into the 2019 Chrysler Pacifica defects as they relate to this specific model & VIN number, leased directly from a connecticut cjdr dealer as a new vehicle. Vehicle currently has 53k miles on it. The lurching & hard shifting defects in the transmission are well cited back to 2016 for this model. Our minivan began lurching forward during gear shifts at &/or approaching highway speeds (37mph - 59 mph) at ~35k miles, while on the highway or roadway with this permissible speed. Problem was intermittent & is now constant. Transmission lurching, & slamming began last year is so aggressive that the slamming woke my son from a sound sleep and vibrated the front cabin. A complaint has been made to stallantis & the vehicle has been brought to the local cjdr dealer four times for the same issue. There is no code, so they can not fix the issue, nor can they can get the van to re-create the issue in the 7 or 8 miles they test drive it. Blogs have shown updates to the pcm and tcm. Service bulletin number: 21-027-17 as a possible fix, but we did that & nothing has changed. Tcm has no updates. Stallantis is now telling me I need to bring it back to the dealer and leave it for several days so they can "drive it home" & add more miles to the miles I have already added to it to have it diagnosed, back & forth the dealership & it's a lease. Stallantis is stating they will "look at it" even if the power train warranty is over at 60k miles, but won't guarantee they'll repair it. In the past they have given me mopar vehicle protection plans for the life of the lease for specific issues, when these issues have not been fixable. Case manager says he isn't aware of that & has to check with his supervisor. The concern is the vehicle is going to have a total transmission failure with my children in the van. A "star" case needs to be opened by stellantis for this issue & I am going to request that tonight. Service bull. Attached. Cc. Atty gen. /CT.