2012 Ford Fiesta: check engine light

Filed Oct 29, 2025 · Acceleration, Body · CO · 1 injury

I was driving to work this morning; the car made a horrible "clunk" when I accelerated to around 20 then lost power and nearly crashed. The car then displayed error lights (yellow CEL, yellow wrench icon, HEAD unit showed "transmission issue service immediately" This is a direct result of the DPs6 transmission put into all 7th gen Ford Focus/Fiesta models. This DCT transmission has been replaced 3 times for this particular car and failed the same manner each time - meaning 3 near accidents have occured because this transmission fails. Across the USA; more than 50 people have been injured as a result of this transmission failing.

Filed Aug 22, 2024 · Engine · CA

The contact owns a 2012 Ford Fiesta. The contact stated while driving at an undisclosed speed, there was an abnormal ticking sound coming from the engine compartment, and the vehicle began to vibrate violently, after which the contact observed white smoke coming from the exhaust pipe. The contact also stated that there was a coolant odor throughout the interior of the vehicle. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The overheating and check engine warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to the federal safety agency Campaign Number: 17V209000 (Engine and Engine Cooling), but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the federal safety agency Hotline for assistance. The failure mileage was unknown.

Filed Sep 8, 2023 · Transmission · 119,000 miles · NM

The contact owns a 2012 Ford Fiesta. The contact received notification of Technical Service Bulletin: 16-0109 (DPS 6 Automatic Transmission – Excessive Transmission Clutch Shudder and/or Transmission Fluid Leak); however, the part to do the repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the repair. The contact stated that while driving at an undisclosed speed, the transmission failed to shift properly with the check engine warning light illuminated. The dealer was made aware of the failure but confirmed that parts were not available. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 119,000.

Filed Feb 20, 2023 · NC

Incident= on February 15, 2023 While vehicle is in drive, upon stopping going up a slight hill, the vehicle started rolling backwards.I did not do anything except slow down/stop. It failed to engage in any gear after it started sliding back, including reverse to try to get me out of traffic ( the gear shifter was just sliding without resistance) except park for almost 15 minutes. My mother and my dog were in the car with me at this time. We were also in the left lane of traffic/ during moderate traffic. The car is an automatic. The vehicle finally engaged in low gear and I was able to drive 10mph to get home. Mechanic, the next morning, stated that my transmission is slipping/not engaging properly. He also advised against driving. And, gave me a really long list of diagnostic codes pertaining to my transmission. My check engine light is also on, now. My check engine light has been going on and off for a few weeks because my catalytic converter is starting to go out, but was off until this incident. I do have the list of diagnostic codes from the mechanic. My vehicle is not driveable because I can't guarantee that it will get me from point A to point B without slipping out of gear again and putting my life and other drivers on the road in harm's way.

Filed Feb 9, 2023 · Electrical, Engine · PA

2012 ford fiesta check engine light on codes reading o2 sensors, catalytic intake, misfires, fuel injection, etc. I have had my fiesta at 3 mechanics all very known for there reliability all diagnosing it different issue recommending me to go to dealership which I was turned away because the recalls for the vehicle isn’t an issue for any of the possible diagnostics. Single mother of 3 now no vehicle, no money and no way of providing without transportation. Less than 150,000 Miles owned less than two years and the amount of money put into the vehicle ford should be ashamed. Shuddering and accelerating issue was told clutch and transmission issue but no help or actual known diagnosis since ford won’t diagnose the suspected diagnosis from any of the mechanics I have taken the vehicle to and they can’t for sure diagnose it until ford confirms the diagnosis since this is a known issue. They also sent me two recalls but refused to fix the recalls because I wasn’t 100% sure my vehicle needed the repair and threatened to charge me 150 diagnostic charge for the recall after I already poured my heart out to them about the issue I can’t seem to even get repaired due to there lack of care care as a manufacturer

Filed Jan 10, 2023 · Acceleration, Engine · 28,100 miles · NC

The contact owns a 2012 Ford Fiesta. The contact stated that the vehicle failed to start with several unknown warning lights illuminated. The vehicle was taken to the local dealer to be diagnosed. The contact was informed that the transmission module and battery needed to be replaced. The vehicle was repaired; however, the failure persisted. While driving, the vehicle continued to jerk and there was smoke coming through the vents. The check engine warning light was illuminated. Additionally, there was an abnormal booming sound detected. The contact had to depress the accelerator pedal continually for the vehicle to respond as needed. The vehicle was taken to an independent mechanic to be diagnosed, and the contact was informed that the catalytic converter needed to be replaced. The manufacturer was contacted but provided no additional assistance. The failure mileage was approximately 28,100. The consumer stated parts alone were $872 of which he doesn't have due to his disability.

Filed Oct 18, 2022 · Transmission · 74,870 miles · AZ

The contact owns a 2012 Ford Fiesta. The contact stated while driving 40 MPH, the vehicle stalled and went into the LIMP mode. There was no warning light illuminated. The contact was able to restart the vehicle; however, the failure reoccurred several times while veering to the side of the road. The vehicle was towed to the residence. The contact was able to drive the vehicle to the dealer; however, the vehicle would not exceed 20 MPH. The check engine warning light was illuminated. The dealer diagnosed that the transmission control module (TCM), the transmission clutch assembly, and the battery needed to be replaced. The vehicle was not repaired. The contact associated the failure with Ford Customer Satisfaction Program Campaign Number: 14M02 (Transmission Control Module Extended Warranty Coverage). The manufacturer was notified of the failure. The failure mileage was approximately 74,870.

Filed Oct 17, 2022 · Transmission · 88,000 miles · CT

The contact owns a 2012 Ford Fiesta. The contact stated while driving 50 MPH, he heard an abnormal sound, and the vehicle stalled. The contact stated that the check engine warning light was illuminated. The contact was able to restart the vehicle however, the vehicle failed to accelerate above 30 MPH while driving back to his residence. The contact took the vehicle to the local dealer, where it was diagnosed with needing the power train module to be replaced. The dealer informed the contact that the parts were not available. The contact purchased the parts at an auto parts store and brought them back to the dealer. The dealer stated that the computer failed to code the module. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 88,000.

Filed Aug 31, 2022 · Transmission · 37,520 miles · OK

The contact owns a 2012 Ford Fiesta. The contact stated while driving 30 MPH and depressing the brake pedal while approaching a traffic light, the vehicle began to shake until the vehicle came to a full stop. The contact stated that the check engine warning light was illuminated. The contact stated while attempting to make a right turn and depressing on the accelerator pedal, the vehicle failed to move forward. The contact stated that she turned off the vehicle for a couple of minutes however, the vehicle failed to restart. The contact stated that after the 6th attempt, the vehicle restarted but continued to experience the failure. The contact drove the vehicle to an independent mechanic and was informed that the transmission needed to be replaced. The vehicle was not repaired. The contact took the vehicle to the local dealer, where it was diagnosed with needing the clutch and the transmission control module (TCM) to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 37,520.

Filed Aug 31, 2022 · Transmission · 112,000 miles · MO

The contact's son owns a 2012 Ford Fiesta. The contact stated that while her son was driving at an undisclosed speed, the vehicle stalled and was unable to reverse with the check engine warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the failure was related to Customer Satisfaction Program: 14M02 (Transmission Control Module Extended Warranty Coverage); however, the warranty had expired. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to file a complaint with the federal safety agency Hotline. The failure mileage was approximately 112,000.

Filed Jun 17, 2022 · Engine, Seats · LA

Seats move after adjusting and sometimes the malfunction check engine code comes on

Filed Oct 26, 2021 · MD

started and moved the gear lever from "P" mode to "D" mode to move the vehicle forward. But couldn't move the vehicle. So tried to changed the gear mode and move but couldn't do. Then switched off the engine and tried to switch on. But couldn't do it. Tried several times and started the vehicle but couldn't move the vehicle, because the gear lever moved only physically. The "Check engine" light was lit all the time on the dash board. We had to tow the vehicle to the dealership since we couldn't drive the vehicle.