2021 Ford Mustang Mach-E Speed Control & Cruise Problems

When in cruise control, any speed, car suddenly accelerates This happens while driving, or sometimes after stopping and then resuming previous set speed. For example I was driving in cruise control at 38 mph, when the car suddenly sped to 50mph. Or when on a highway, driving at 55mph, the car suddenly accelerated to 70mph. Started about 3 weeks ago.

A KNOWN faulty camera problem for 100s of Ford EVs. Starts off as very intermediate warnings until it stops working all together. This problem doesn't allow you to use cruise control and a host of other standard safety features. This should be a recall, I can't imagine someone getting hurt or worse because ford isn't getting ahead of this thing.

It accelerated unexpectedly with no input while decelerating in one pedal drive mode. Cruise control was not in use at all during the drive.

The car is frequently but intermittently reporting a failure with the front camera: "Front camera fault Service required". When this happens, the adaptive cruise control and other ADAS are disabled, which is a safety hazard while driving the car, especially at highway speeds. This issue began very infrequently in March 2024 and now happens on the majority of trips when driving the vehicle. I took the car to a Ford service center for repair. They did a software update on the car and told me that they were sure that the update would fix the issue. The front camera fault re-occurred within a week after having the software update done.

When stopped at a stoplight, in unbridled mode with one pedal driving engaged, the car surged forward on it's own. The surge forward caused my vehicle to rear-end another vehicle. I would assume the failure was the one pedal driving system and it is available for inspection. The problem has not been reproduced or inspected yet, but we have an appointment for a Ford dealer to evaluate the car. The only warning was the pre collision warning which did go off.

I am getting a warning in the car that the front camera is failing. The warning includes an error that the front camera failed, and that the forward collision is unavailable. Each time this happens, this causes the cruise control, lane centering and lane departure systems to disengage, which means the vehicles hard brakes at highway speeds when this happens. It disabled forward collision detection when this happens. Ford has TSB for this but when I took it in for repair/replacement they said it wasn't covered by anything and charged for the fix.

Having completed the high voltage junction box recall with the Mach-E a week or so before, I was braking in order to complete a left-turn in one-pedal drive mode (therefore lifting my foot off the accelerator causing the vehicle to slow down). I received a notification as I did so that one pedal drive mode had a fault and was deactivated (this appeared on the screen by the steering wheel). This caused the car to lurch forwards, as it shifted from OPD to standard drive mode. Fortunately no cars were ahead of me and I was able to quickly slow the vehicle by braking, but I'm alarmed as to what would have happened had this been in traffic.

I drove the car to work with no issues. I left work a little over 9 hours later. I was able to enter car without issues. Turned on car and didn’t notice any issues. My phone connected as usual via CarPlay and I navigated home. Leaving the work area is low speed, so I never exceeded 20 mph and just went by feeling, but once I was on a more open stretch of road, I noticed that the instrument cluster was frozen and the speed it was displaying felt too slow compared to how I felt I was going. In essence, I couldn’t tell how fast I was going. After closer examination (mind you I was driving while figuring this stuff out), I noticed that the instrument cluster would update once in say 10seconds or so (but it was variable). I tried to set cruise control to initiate blue cruise, but I couldn’t tell what speed cruise control was being set to due to this enormous lag. I also wasn’t sure if the system would also exhibit this lag. Finally, I noticed that even the lights indicator for the blinker would refresh very slowly but the audible “click” associated with the blinker was normal. The drive home was very distracted and painful due to this issue. I documented the behavior in a video if needed.

Vehicle in Adaptive cruise will unintentionally accelerate when a motorcycle is lane splitting to the right of the vehicle, causing the vehicle to accelerate towards a slowing or stopped vehicle. This puts me and other motorists at risk of a crash.

There is a software problem which was introduced in a previous OTA which causes drive modes to change. These drive modes are Whisper, Engage, and Unbridle. Each has their own acceleration/throttle response characteristics, as well as steering and suspension feel. You also have the ability to enable one-pedal drive in the drive mode menu. The software bug will randomly throw an error on the main screen that says "Drive Mode Not Available" change your drive mode from Whisper or Unbridle to Engage, affecting the throttle response that can occasionally lead to unintended acceleration. On occasion, it can also lead to disengaging of the one-pedal drive mode at the same time, which can cause the vehicle to not slow down when the foot is lifted off the accelerator. If the driver is unaware that 1PD has become disengaged unintentionally (which cannot be re-engaged without power-cycling the vehicle), it could lead to a crash as the driver is not expecting to use the brake pedal. In a moment's notice situation, it could be deadly. The vehicle has not been inspected, however, this problem has been reported by many other Mustang Mach-E owners. I will link my forum post at the end of this report which has other claims of this fault. The vehicle is available for inspection upon request. It cannot be easily reproduced as it is entirely random. Yesterday (11/8/2023 @ 1:40 EST), I was pulling into a parking spot with concrete posts around it. This time, it happened as I was turning into the spot. I was in Whisper mode this time. I noticed the car SPED UP a bit as I was letting my foot off the accelerator, and I had to slam on the brakes. Sure enough, "Drive Mode Not Available" was up on the screen. I was about 1 inch away from this concrete post. If my reaction time was just a bit slower in hitting the brakes, the vehicle would have crashed itself, relatively outside of my control. https://www.macheforum.com/site/threads/huge-safety-issue-1pd-drive-mode-not-available.31712/

The contact owns a 2021 Ford Mustang Mach E. The contact stated that while driving slowly in reverse and reversing of a parking space, the vehicle suddenly experienced unintended acceleration and erroneously drove across the street before crashing into an apartment building wall. During the crash, the driver sustained a lower back injury and left arm laceration which required medical treatment. The vehicle was towed to a local body shop. No police report was taken. The cause of the failure was not determined. The manufacturer was notified of the failure. The local dealer was not contacted. The failure mileage was 14,750.

All of the advanced safety features have stopped working in my Mach E The curse control does not work either the adaptive or the standard. The pre-collision system is not working, lane assit is not working. The absence of these working systems is a danger. Ford knows about this software problem with the software, however they refuse to fix the problem at there expense. The Mach E was designed from the ground up as software driven, the manufacture should be responsible to ensure that the software is up to date.

I keep receiving a fault for the front camera which seems to be a very common occurrence amongst Mach-e owners lately. After receiving this message, the cruise control abruptly kicks off. All functions of the cruise control do not work in this instance…adaptive, speed keeping, lane control, etc. This fault happens about once every couple of minutes while driving. When I’m using cruise control in ‘one-pedal’ drive mode and this fault occurs, the vehicle immediately starts braking. This happened one time as I was entering a narrow bridge in Solomons, MD, and a car behind me nearly rear ended me.

I have complained several times with Ford Dealers to fix the issues involving my vehicle accelerating on its own. The vehicle within a week will accelerate on its own 4-6 times when exiting a parking spot or my driveway.

Front Camera Fault & Pre-Collision Assist Not Available Error messages since August 2022 around the time after a recall for windshield reglue.

On approximately March 20, 2022, I was driving my Mach E vehicle. I pulled into a driveway and parked my vehicle. Upon exiting my vehicle, my vehicle began accelerating forward up the inclined driveway. It then struck a parked vehicle and came to a stop. The car accelerated uninetentionally which is in alignment with the current recall. Additionally, the advanced emergency braking did not work as the brakes did not deploy and the car only went back to rest after I re-entered the car post-accident.

The contact owns a 2021 Ford Mustang Mach-E. The contact stated that while her husband was driving slowly into the garage and the vehicle suddenly experienced unintended acceleration and crashed into the home and went through to the bedroom, causing damages to the vehicle and the home. No warning lights were illuminated. The vehicle was taken to a local dealer for an unrelated recall repair and the contact made the mechanic aware of the failure. The mechanic confirmed that there was no related recall on the VIN. The vehicle was not diagnosed. The contact was concerned about the safety of driving the vehicle and was referred to the manufacturer for guidance. The contact filed a claim with the insurance provider and the vehicle, and the home was repaired. The manufacturer was made aware of the failure and a case number was provided. The approximate failure mileage was 2,335.