Automatic Transmission Control Module problems of the 2024 Jeep Grand Cherokee

In traffic, in drive, at speed 40 mph, vehicle shifted automatic transmission to low gear, dropped speed to 10 mph, every alarm indicator came on, rpms were in the 6k red line range, was able to pull of the road, engine shut down, was not able to shift, restart, or use key fob functions. Towed to dealer replaced aux battery, replaced tcm valve body assembly. Vehicle mileage 4,380.

While driving in the los angelas area on March 24, 2025, on the 210 freeway approaching the 605 freeway the vehicle abruptly decelerated from 65mph to 45mph. A message appeared instructing "continue to your destination, do not turn off your engine, if you turn off your engine you may not be able to start it again. " we contacted Jeep connected who directed us to cerritos cdjr. As we were heading south on the 605 freeway the vehicle again abruptly decelerated to 28mph. This placed us in a dangerous safety situation as we were at the height of the afternoon traffic. The service advisor was able to determine that the valve body(vb) and transmission control module(tcm) had failed. Also, both batteries were fully drained of their charge. The mileage was 4095. The comment was that the batteries contributed to the vb/tcm failure. We have continued to experience battery degradation with five (5) batteries having been replaced within the first year of ownership. We continue to identify battery degradation to the dealership but have received no correction to this defect. Over the past four (4) months we have documented "resting" battery voltage at a level where they are at or below 50% of their expected lifetime. While it is suggested that parasitic drain is the cause, we continually ensure that lights, radio, heating and air-conditioning and Jeep connected are turned off when parked. I have documented to the utah division of consumer protection and ncds these conditions. The ruling from ncds denied. "I have reached this conclusion for the following reason: the customer did prove by shop work orders a manufacturer defect does exist with the batteries discharging, which has affected the use and safety of the vehicle. However, there has only been three repair attempts with replacing batteries which is not considered unreasonable in my opinion. " with the recognition by an arbitrator that a manufacture defect exists which affects safety, it cannot be limited to my vehicle.