Automatic Transmission Control Module problems of the 2021 Ford F-150

I am reporting a severe safety defect where Ford motor company's sequential safety recall software updates are actively corrupting powertrain modules and inducing physical mechanical failures while the vehicle is in operation. Following the completion of the 24s55 engine intake valve recall (which reflashed the pcm and wiped the transmission's adaptive learning tables), my 2021 Ford F-150 developed an immediate operational shudder. Shortly after, a forced over-the-air (ota) update for the 26c10 trailer brake module triggered a secondary network reset via the can-bus. The intersection of these two software-driven actions caused an operational fault that physically broke the torque converter clutch. A compromised torque converter clutch can cause sudden vehicle stalling, unpredictable acceleration lags, and catastrophic powertrain locking while driving at highway speeds, creating an imminent crash hazard. The local Ford dealership service department confirmed the hardware failure and noted that pushing automated software updates over unstable tables leaves the entire transmission highly vulnerable to total systemic failure. Ford is currently refusing to open an escalation file or address this issue. Because Ford's official remedy for safety recalls 24s55 and 26c10 directly introduces a secondary, severe safety risk to the vehicle's powertrain integrity, I request that NHTSA investigate the technical compatibility and safety of these sequential software updates.

My vehicle has been with the Ford dealership for about a month and the mechanic and the engineers still have not found why my vehicle is giving a service wrench warning. When driving the vehicle will flash red warning lights which makes the vehicle unsafe to drive. I have paid for an auxiliary transmission pump and battery. This did not fix my truck. The dealership said they replaced the pcm, but it didn’t fix the truck. I seen that these trucks had recalls.

I just want to provide support for others that have this safety issue, as my 2021 f150 powerboost also has this issue. When making a turn, usually a righthand turn, onto a busy road, the vehicle will fail to accelerate. The delay is not turbo lag, but more so a dead space or lag of any response from the power train. I have found that if I disable the advance trac and traction control, the issue is no longer present. Just wanted to reinforce the confidence at the start and how dangerous it is. You get this false sense of security that the truck is going to accelerate a certain way, then falls flat at a very risky time. Fyi, I am running the latest pcm code and modules updates available from Ford, via fdrs. . Read more...