NHTSA Complaint #11703768 — 2019 FORD EXPEDITION

2019 Ford Expedition Max with the 10R80 transmission experienced severe shifting issues shortly after PCM recall 24E13 was performed. The recall involves PCM/TCM updates and adaptive shift strategy reset. After the recall, the vehicle developed shuddering, harsh shifting, flaring between gears, and delayed engagement. Dealer diagnosis found internal transmission damage including CDF hub sleeve axial movement and No. 3 sun gear shell seal failure, along with diagnostic code P07E6. These failures are known on the 10R80, but the issue escalated immediately after the recall update. Transmission required a full overhaul. Concern that the recall calibration and adaptive strategy reset may accelerate internal wear or exacerbate pre-existing vulnerabilities in the 10R80 transmission.