2022 Ford Mustang Mach E Fuel System Problems

Owner reports

Selected complaints filed with NHTSA by 2022 Ford Mustang Mach E owners, lightly cleaned up (personal details are redacted by NHTSA).

I had put the vehicle into One Pedal Drive mode for the first time on the morning of Aug 29th. Vehicle operated as it should for first few places I drove to and stopped, but then I approached a red light, removed foot slowly from accelerator and vehicle came to a full stop as it should. Approximately 2-5 seconds later, without warning or even the collision avoidance system activating, my vehicle suddenly accelerated into the rear of the stopped truck in front of me. Fortunately no serious injuries but someone could have been killed. My foot was NOT on the accelerator at the time - it was hovering over it while waiting for the light to change to green. My vehicle was taken to Ford for evaluation, but they claim it has to be repaired before they can diagnose/confirm the issue. I am the original owner with no previous accidents or incidents.

On November 18, 2022 my vehicle's High Voltage Battery Junction Box (HVBJB) failed. Ford replaced this part with an "upgraded" version of this part and I received my car back on November 28th. Shortly thereafter, the NHTSA issued a recall, the solution for which was a software update that my car received. On October 10, 2023 my vehicle's HVBJB failed once again (the newer upgraded part). Coincidentally, while my car was in the shop, the NHTSA issued a second recall for this issue, indicating that Ford would be recalling the physical HVBJB. Shortly after this recall, my recall was marked as complete because I received the upgraded version of the part once again. …

Ford knowingly sold unsafe vehicles. NHTSA caught them and forced a recall on the High Voltage Junction Box (they are still failing, so you may want to look into this). But what they have hidden from you and all of it's customers that they suckered in buying their defective product, is that the front motors, have undersized wiring, which could cause a fire . They have attempted to hide this from the public, by limiting the power of the car to 5 seconds of full power and then dramatically decreases the power after that. The sold the cars to consumers without revealing that fact, so folks bought the performance "GT" versions and yet they are neutered. It's only a matter of time, where those tiny wires in the front motors give up and start causing fires. It's time for the government to stand up for he consumer here. …

I was pulling into a parking lot at low speed when the car suddenly began accelerating rapidly on its own. Fortunately, when I hit the brakes it stopped without incident. However, if someone had been right in front of me at the time - a pedestrian or car - it could have resulted in a crash. I am certain that I didn't hit the accelerator, nor was it pushed by floor mats or anything like that. It is conceivable that when I was turning, my left palm activated the cruise control in some manner, but that scenario wouldn't explain the acceleration part. And frankly, I don't think that is what happened. I love the vehicle and am not trying to get anything out of it. I am a capable driver with good reflexes and experience. I was able to stop it, but if this were to happen to a new driver or senior driver it could result in a crash. I looked on reddit and many others report exact same issues.

Powertrain malfunction warning while driving to work on 55MPH road. This has occurred twice since buying the car new. November 14, 2022 with 9k miles was when the first warning/malfunction occurred. HVBJB was replaced. This last/second powertrain malfunction and High-Voltage battery warning occurred on May 26, 2023 with 15k miles. HVBJB replaced again. This warning resulted in reduction of power, but not full loss of power. Unfortunately, the last time this occurred was when I was attempting to pass on a two lane road. The power reduction when this warning occurred prevented me from safely passing and getting back in to my lane. Image of warnings on my Ford app are attached for details and dates. Northfield Ford (Northfield, MN) replaced the HVBJB on both occurrences. I have never used a DC Fast Charger. Most used charger is 110v.

1) The high voltage junction box failed causing the vehicle to abruptly stall on a public road. The part will be available for inspection through contacting a local dealership. 2) The vehicle completely stalled at night in the middle of a 6 lane intersection. This posed a hazard for myself as well as for on coming and cross traffic. 3) The dealer has confirmed the failure of this component. 4) The vehicle component is being order of replacement at the dealership. The manufacture has also been informed via their corporate customer service line. 4) 5 seconds before the stall, the vehicle user interface displayed the message "please pull over safely". 10 minutes after the stall the Ford My Pass App showed three error messages: "High-Voltage Battery Warning", "Powertrain Malfunction/Reduced Power" "Charge System Fault"

I bought a 2022 mustang Mach e. Which was supposedly fixed at the factory in regards to the HVBJB issue. However, in mid 2023, my vehicle suffered a limp mode/warning about reduced power while on the interstate, was limited to about 60mph with very poor acceleration. Was diagnosed by ford tech as a failure of the recalled part and required HVBJB and BECM replacement, similar to 22V-412 recall. I think this should be added to RQ23004 investigation, as these vehicles had both the new hardware and software and were supposed to be "fixed".

I was driving my car when all of a sudden it lost all acceleration and power, I was lucky that I wasn't on the highway anymore and was able to pull over safely on a side street while car was rolling still. Dealer said 12V battery fused, and I have been reading forums where this is a common issue.. In a normal ICE car when 12V battery dies while driving, car can still drive, in this case, it just stops and pops up a dozen errors about everything being broken.

The high voltage battery junction box failed on my car at 9500 miles, and now again at 19200 miles. Failure prevents the car from running properly, or at all. The dealership is reporting that Ford has not developed an updated replacement part, and is only replacing with the same part that the vehicle left the factory with.

Car suddenly lost all power and flashed multiple warnings. Steering also became disabled. This was moving at a low speed through a school zone so it did not cause an accident. After several restart attempts the car moved again but quickly same issue occurred. Car was towed to Ford. Still waiting for diagnostic.

Fuel System complaints in other Mustang Mach E years