2012 Ford F-150: sudden loss of power

Filed Jul 29, 2026 · Transmission · UT

At approximately 146,451 miles, the transmission molded leadframe on my 2012 Ford F-150 failed while I was driving approximately 60 mph on a highway. Without warning, the transmission harshly downshifted, the truck lost power, the speedometer stopped working, the wrench warning light came on, the seat belt warning light illuminated, and the transmission entered fail-safe (limp) mode. I could not maintain highway speed. This created a serious safety hazard. The unexpected downshift and sudden loss of power in moving traffic could have caused a crash. I was fortunate that no vehicle was directly behind me when the failure occurred. After a diagnostic code appeared, I identified the problem with my own code reader, and a Ford dealership confirmed the failure was the transmission molded leadframe. Ford declined to cover the repair because its Customer Satisfaction Program had expired. They acknowledged that it was a defective part, though. This leaves me paying to replace a part they know is defective and is highly severe and extremely dangerous, as it presents an immediate risk of a high-speed crash. I believe this is a serious safety defect because it can occur without warning and cause an unexpected downshift, sudden loss of power, loss of the speedometer, and fail-safe transmission operation while the vehicle is moving. I don't have the part, but I can ask that they save it. The vehicle has only been inspected by 2 dealerships. One diagnosed the issue. Again, no warning lights that the part was failing until it actually failed. That led to the first dealership misdiagnosing the issue. I believe this is a serious defect and can cause crashes, injury, or fatalities.

Filed Jan 14, 2026 · Acceleration, Electrical · SC

The vehicle experienced repeated and unpredictable loss of drivability while in operation. The transmission intermittently disengages and the gear indicator rapidly cycles between Park, Reverse, Neutral, and Drive without driver input. During these events, the vehicle loses propulsion and becomes unsafe to operate in traffic. Warning messages and instrument cluster anomalies were observed prior to and during the failures, including erratic dashboard behavior. The issue has occurred multiple times and is reproducible. The condition appears to be related to a known safety recall involving the transmission lead frame / powertrain control system. The failure creates a serious safety risk due to sudden loss of power and inability to control vehicle movement, especially in traffic or while stopped at intersections. The vehicle is not safe to drive and has been removed from regular service. Diagnostic data, video evidence, and photographs documenting the failure and warning indicators are available upon request. The manufacturer has been notified and a recall case has been opened, but the defect has not yet been resolved. The vehicle remains unrepaired at the time of this report.

Filed Dec 27, 2025 · Steering · CT

Vehicle: 2012 Ford F-150 Incident Description: While driving straight under normal conditions, the “Service Power Steering Service Now” warning message suddenly appeared on the dashboard, accompanied by an audible warning alarm. Immediately after this warning, the steering wheel became extremely stiff and difficult to turn, with a sudden loss of power steering assistance. This failure occurred At the time, traffic was heavy, making it very difficult and dangerous to safely maneuver the vehicle and pull over. The sudden loss of steering assistance created a serious safety risk for myself and other drivers and could have resulted in a crash. I was eventually able to pull over to a safe location, This appears to be a sudden steering system failure and represents a significant safety concern

Filed Jul 17, 2025 · Electrical, Transmission · MI

The transmission made a noise of metal and all electrical when out while driving but the engine stay on but no power to the road. yes its available. my car loss all power electrical and power to the road, had to put off to the side on the road and turn the truck off and on again. The problem has been reproduced but not confirmed by a dealer. I have done a existential look of the under and power train and cant see everything out of place. yes like every warning light when on seconds before all power when out. has never done that before.

Filed Feb 24, 2025 · Transmission · 122,000 miles · VA

The contact owns a 2012 Ford F-150. The contact stated that while driving at various speeds, the transmission unexpectedly downshifted into first gear. The contact stated that the light for the speedometer went black and failed to illuminate as intended. The contact stated that the vehicle then lost power. The vehicle was steered to the side of the road and restarted after several minutes after each failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 122,000.

Filed Oct 24, 2023 · Steering · 17,362 miles · UT

The contact owns a 2012 Ford F-150. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of power steering assist. The contact was able to drive to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 17,362.

Filed Jul 4, 2023 · Transmission · SC

Vehicle started to downshift while driving at highway speeds a few months ago. Also a loss of power and acceleration with instrument failure. Later learned this was a common problem with the 11-13 f-150s that Ford knows about. They did give everyone a 10 year, 150k warranty but my truck is just barely out being a 12 with 151k miles. I took it to dealer where it cost me around a $1000 to fix. Was told by service manager there were many more people with the same issue. The transmission leadframe assembly was bad in thousands of trucks. There is a back order of over 12000 of these parts I was told. I think there should be a recall on all of these transmissions and be fixed by Ford. Also, refunds for those of us who already paid out of pocket. Thank you for your attention in this matter.

Filed Jun 30, 2023 · Steering · 209,000 miles · SC

The contact owns a 2012 Ford F-150. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of power steering assist. The restraint warning light was illuminated. The vehicle was towed to an independent mechanic, who informed the contact that the steering gear assembly needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 209,000.

Filed May 25, 2023 · Steering · 141,000 miles · TN

The contact owns a 2012 Ford F-150. The contact stated while driving 65 MPH, the vehicle lost power steering functionality with the traction control warning light illuminated. Due to the failure, the vehicle was towed to an independent mechanic where it was discovered that the power steering angle sensors were defective, and the rack and pinion needed to be replaced. An unknown dealer was notified of the failure and the contact was informed that there were no recalls on the VIN. The manufacturer was not notified of the failure. The vehicle was not repaired and remained in the possession of the dealer. The failure mileage was approximately 141,000.

Filed Apr 23, 2023 · Steering · CO

As your driving advance track failure light comes on and you lose power steering. Steering gets real tight and hard to turn. Almost got in a car accident but was able to turn the steering as hard as i could just to make the turn. Drive for a little while then all of a sudden power steering kicked back on. It happen every time i drive my truck.

Filed Aug 22, 2022 · Electrical, Transmission · WI

The truck will randomly downshift while driving losing all power on the highway not allowing the truck to increase in speed until it is turned off and restarted. After it is restarted, the speedometer stays at 0 not showing how fast we are going. While this is happening, the check engine light flashes. I have contacted the Ford dealership in our area multiple times over the last month, and they have yet to respond on the concern. Not all the trucks electrical components are working. The radio, power locks, power windows, and horn do not work. In July 2022 the truck was taken to a Ford dealership to be diagnosed, and they couldn't find a reason/cause for this in order to get the truck repaired.

Filed May 6, 2022 · Brakes, Engine · NY

Brake Failure: The brake Vacuum Boost pump is failing which causes a loss of power assist brakes. This is a massive safety issue and can cause serious accidents. Oddly Fors no longer manufactures the Bracket to be able to replace the pump and there is no aftermarket alternative. My Dealer tells me their notes from ford say obtains from aftermarket but I have scoured the internet and nobody makes the bracket. IT's a terrible design and a huge safety issue that should be recalled completely . Ford watts to charge over $900 to fix it but cant even get the parts as described above. Transmission Lead Rail: Recently had the Transmission Lead rail fail whcih casued sudden downshiting at highway speeds and the shift indicator to not illuinate. THis again is a massive safetey issue that Ford issued sevral TSB on but never recalled. This almost got me killed on thehighway a few times. They charged me over $1500 to replace the LEAD rail when again this defcetive design and craftsmenship that is a massive safetey issue and should be fully recalled. Engine Stutter: My truck has almost always stuttered anytime you wne tover hal throtle, There are sveral TSB on this but FORD has not stepped up and taken care o fht eissue via recall. Apprnetly moisture build up in the inercooler and gets sucked into the intake due to poor design. Timing Chain Stretch: I now have Timing chain stretch, this also seems ot be quite common due to poor design. Rear Door Failure: I can no longer open my rear half door due to failure of internal plastic door components. You can research any o fhtese issues and find that htey are very common pronlems in F150 and other Ford vehicles due to their negligence in design and engineering and some are huge safetey issues that FORD has somehow been alloweed to ignore or issue insufficinet TSB instead of Recall.