2011 Ford Fiesta Complaints

I am reporting a serious mechanical and safety issue involving my 2011 Ford Fiesta. After receiving a partially state-funded engine replacement in June 2025, my vehicle began experiencing serious transmission problems shortly after. Within a month, it went into limp mode multiple times, and warning lights appeared: the wrench light, incline warning, and “Transmission Malfunction – Service Now” messages. A diagnostic scan revealed multiple DTCs related to the Transmission Control Module (TCM), Input/Output Shaft Speed Sensors, and Clutch A disengagement (P286F) — which I understand are linked to known issues with this model’s transmission. These failures make the car dangerous to drive. The vehicle has lost power unexpectedly, putting me at risk of an accident. I’ve also been told by the repair shop that I may now need a new transmission and/or TCM, despite just receiving a major engine repair. I am unable to afford another large repair and this situation has severely impacted my abi...

The contact owns a 2011 Ford Fiesta. The contact stated that while driving at an undisclosed speed, the vehicle jerked, and failed to accelerate as intended while depressing the accelerator pedal. The vehicle stalled while driving. The contact waited for a short while and was able to restart the vehicle. The contact was able to move over to the side of the road. No warning lights were illuminated. The contact stated that on a separate occasion, while attempting to reverse out of a parking space, the vehicle failed to function while in reverse(R). The vehicle was taken to the dealer where it was diagnosed that the transmission PTU had failed. The vehicle was repaired. The contact stated that recently while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact was able to pull into a parking lot. An unknown warning light was illuminated. The contact turned off the vehicle and waited for a while and was able to re...

The contact owns a 2011 Ford Fiesta. The contact stated that the vehicle hesitated or jerked while depressing the accelerator pedal with the check engine warning light illuminated on the instrument panel. The vehicle was taken to the dealer where the contact was informed that the shift motor was defective. The contact was informed that the part was covered under warranty and the vehicle was repaired. The contact stated that after the repair, the check engine warning light returned while leaving the dealer parking lot. The contact continued driving the vehicle and the vehicle entered LIMP Mode while driving to the residence. The vehicle was returned to the dealer the next day and the contact was informed that the transmission control module was defective and needed to be replaced. The dealer informed the contact that the repair was not covered under warranty and the contact was provided an estimate for the repair; the vehicle was not repaired. The manufacturer was notified of the failu...

Door locks keep unlocking and locking as I'm driving. It is very loud. 4 or 5 times as I'm going 35 and 60 mph

The contact owns a 2011 Ford Fiesta. The contact stated while driving at approximately 65 MPH, the vehicle stalled. The contact stated that the engine malfunction, ABS, and Hill Assist warning lights were illuminated. The contact had taken the vehicle to an independent mechanic where it was diagnosed; however, the contact was unaware of the diagnostic result. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the same mechanic who again diagnosed the vehicle and informed the contact that the vehicle was repaired. The contact stated that the failure reoccurred, and the vehicle was taken to a local dealer. The dealer diagnosed the vehicle and determined that the throttle body, engine electrical harness, and engine mounts needed to be replaced. The vehicle was repaired. The contact stated that the failure had reoccurred, and the vehicle stalled with white smoke coming from the exhaust pipes. The contact had not taken the vehicle back to the dealer. Th...