Which parts fail
Components named in complaints (automatic emergency braking, adaptive cruise, lane keeping, backup camera).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2021 Ford Mustang Mach E owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2021 Ford Mustang Mach E. The contact stated that while the wife was driving the vehicle and approaching oncoming traffic the vehicle was stopped. Immediately after stopping the pre-collision warning activated and the vehicle suddenly experienced unintended acceleration crashing into the rear of a second vehicle and pushing the vehicle nearly 50 feet into and across the street intersection. During the incident the driver sustained an injured neck, the front passenger sustained an injured neck and fractured left wrist. Both occupants required medical treatment. Also, the second vehicle's occupant sustained an unknown injury. No further information was available. A police report was taken at the scene and both vehicles were towed to an undisclosed location. The cause of the failure was not determined. …
The contact owns a 2021 Ford Mustang Mach-E. The contact stated that while operating the vehicle, the message "Collision Avoidance Camera Fault" was displayed, indicating a camera malfunction. The contact stated that the message was also present on the Mobile App. The contact also stated that the failure was a recurring failure and the camera had been replaced four times, and the vehicle was serviced several times for the failure. The manufacturer and local dealer were made aware of the failure, but no assistance was offered. The failure mileage was 31,014.
The contact owns a 2021 Ford Mustang March E. The contact stated that while reversing, the back over prevention camera image was frozen, and the driver was unable to view the images behind the vehicle. The vehicle was taken to the local dealer who determined that the back over prevention camera was faulty; however, the VIN was not included in NHTSA Campaign Number: 25V315000 (BACK OVER PREVENTION). The vehicle was not repaired. The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 7,500.
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.
While parking in a garage the vehicle unexpectedly accelerated and ran into a wall. Anyone in or around the car may have been seriously ignored. The issues has happened twice but can not be reproduced by me. There we no indicators that the event was about to take place There is a recall for this on the vehicle type but not for the date of my manufacturing.
I have been having Ford try to resolve the safety systems from failing while driving for over 2 years. In October 2023 I took a settlement (hush money) for my time and effort, thinking that the safety systems were fixed. The dealership currently has had my vehicle for over 7 days and will not give it back until they have found a resolution (good for them). The dealer placed a buyback request with Ford Motor Co last week because of the extensive troubles, safety concerns and inability to resolve, however Ford has denied it because of the settlement. I am not wanting money, I am not wanting anything other than for Ford to take the vehicle back and pay off the loan. I have a teenage driver and I am at a point that the safety of this vehicle is putting myself, my daughter and OTHERS at risk every time it is driven on public roads. …
I frequently get front camera fault warnings from my car and then it disables the adaptive cruise control and the collision warning and assistance features. I have attempted to fix this and the Ford dealer held my car for about 14 days (also damaging it twice). They attempted to replace the module but could not get the new one to work and then opted to put the old module back in and apply a software update. There is a TSB for this issue to replace the coaxial cable that goes between the camera and the IPMA module. For some reason the dealer did not opt to replace this cable after attempting to replace the module. There are a large number of reports of this problem on Mach-E forums and Reddit and clearly a recall is necessary because dealers are not adhering to the TSB (perhaps to wait out warranties). …
I am the owner of a 2021 Ford Mustang Mach-E and have experienced repeated failures of the front-facing camera system, which directly impacts critical safety features such as automatic emergency braking, lane-keeping assist, and adaptive cruise control. When the camera fails, these safety systems become unavailable or behave unpredictably, putting my safety and that of others at risk. The issue began around 40,000 miles. It is typically preceded by dashboard warnings such as "Front Camera Fault" or "Driver Assistance Features Unavailable." I paid out of pocket for a repair at an authorized Ford dealership, but only four months later, the exact same issue happened again. Now, Ford is requiring me to pay for the repair again, despite this being a repeated safety-related failure of the same component. …
There are many reports of the Mustang Mach E "accelerating unexpectedly." This usually happens in parking lots or other situations involving low speed and a rapid turn of the wheel. I know exactly what the problem is, because it happened to me this morning. While parking in my parking garage, my car rapidly accelerated uphill and I only narrowly avoided hitting a wall. Here is why: There are two interconnected problems. The first is that the "cruise control on/off" button is located on the far left of the interior of the steering wheel, which makes it easy to accidentally press when doing a sharp, quick one-handed turn of the wheel (like when parking). When this happens, CC engages while in the act of parking. This is exactly what happened to me. …
After having my front windshield replaced due to a recall my front camera quit working properly. This happened a year ago. Since then I have had a warning come up on my dash ever time I start my car saying the front camera has a fault and the front collision avoidance does not work. Additionally this effected the following. I have no cruise control, no blue cruise, no lane keeping assist, no self park, no adaptive cruise control and no accident avoidance system functions. There was a service bulletin issued but it should be a recall as it effects anyone that has had the windshield replaced. Apparently the wires that connect the camera are ridiculously fragile and when the windshield was replaced they were damaged. I have been waiting since spring 2023 for the parts after software updates failed to fix the problem and Ford realized the problem. …
Related recalls
Back over prevention › Software
Ford Motor Company (Ford) is recalling certain 2021-2024 Bronco, F-150, 2021-2024 Edge, 2022-2025 Escape, F-250, F-350, F-450, F-550, F-600, 2022-2024 Expedition, 2022-2025 Transit, 2021-2023 Mach-E, 2024 Ranger, Mustang, 2021-2023 Lincoln Nautilus, 2022-2024 Navigator, and 2023-2024 Corsair vehicles.
Remedy: The accessory protocol interface module (APIM) software will be updated by a dealer or through an over-the-air update, free of charge.
Collision Avoidance complaints in other Mustang Mach E years
Frequently asked questions
How common are collision avoidance problems on the 2021 Ford Mustang Mach E?
NHTSA has 112 complaints about the driver assistance of the 2021 Ford Mustang Mach E, 32% of the model year's 351 complaints. The component named most often is warnings (89 mentions).
Is there a recall for 2021 Ford Mustang Mach E collision avoidance problems?
Yes — NHTSA recall 25V-315 (software, May 9, 2025). Recall repairs are free at authorized dealers.
At what mileage do 2021 Ford Mustang Mach E collision avoidance problems start?
Half of the complaints with a recorded mileage happened before about 30,000 miles, and 50% before 25,000 miles.
Is it dangerous?
Owners linked 4 crashes, 0 fires and 3 injuries to driver assistance problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.