Powertrain shift system fault and stalling
POWER TRAIN, ENGINE
6 NHTSA complaints · 2025-03 → 2026-07
“While driving home and stopped at a red light, the dashboard displayed a "Service Required" warning followed immediately by a "Shift System Fault" message. The vehicle would not accelerate and stalled in the middle of the road with traffic going around me”
“The powertrain stopped shifting properly and unable to drive smoothly and at a proper speed. Pulled over and and it could not be shifted out of PARK. Had to be towed to a Ford dealer shop. Ford App sent message: POERTRAIN MALFUNCTION REDUCED POWER”
“The vehicle was previously diagnosed and repaired under warranty for the same 'Shift System Fault: Service Required' condition (transmission main control valve body replacement, RO #609213, completed July 21, 2026). Approximately 14 hours after pickup, on July 22, 2026, the…”