Ford Mustang Mach E driver assist problems

315 of the 1,252 complaints filed about the Ford Mustang Mach E are about the driver-assist systems — 100% of everything owners reported. The worst model year for it is 2021.

315

Complaints

100%

Share of all complaints

19

Crashes

0

Fires

Driver Assist & Collision Avoidance complaints by model year

Median failure at 3,800 miles

Median failure at 23,000 miles

Median failure at 15,000 miles

What owners said

2023 Ford Mustang Mach E Callicoon, NY

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Impacts: Electric system software & fools/locks/linegae. The EV vehicle has suffered a catastrophic, complete failure of its central software architecture, specifically impacting the APIM module and RDS system. Ford's internal In-Vehicle Technology (IVT) records confirm this failure originated in December 2025 while vehicle was fully under its 3-year bumper-to-bumper warranty. Because vehicle's underlying diagnostic and software infrastructure is completely frozen in an unresolved "updating" loop, the vehicle's onboard diagnostic tools are entirely incapable of reading or reporting critical hardware and structural component failures. Initial service was May 26. This software failure has caused severe, active safety hazards. In July 2026, the driver-side door latch completely failed to secure. Because software is bricked, no diagnostic code or dashboard warning was generated. As a 100% disabled driver, I was forced to drive 35 minutes home from an oncology medical appointment physically holding the driver’s door shut at speed on public roads to prevent it from swinging open. Furthermore, vehicle's network connectivity has completely shut down while driving on 3 separate occasions. During door latch failure, I was trapped in a rural area with zero cellular service. Because onboard telematics and modem systems are frozen and failing to receive critical safety patches, vehicle's SOS Post-Crash Alert System and tracking telemetry are severely compromised. If an accident or ejection had occurred due to the door latch failure, emergency services would have had no automated tracking link. Ford has failed to repair this after multiple extended dealer stays and has admitted through their IVT department that vehicle is unfixable due to massive never before seen software failure via standard service and requires manufacturer buyback. Dealer files att show no vehicle updates since Feb 2026 tho IVT confirmed May 28 not updates since Dec 2025 from Ford known software glitch.

NHTSA complaint #11762679 — an unverified report by a vehicle owner.

2023 Ford Mustang Mach E Chester Springs, PA

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

My 2023 Ford Mustang Mach-E GT experienced a sudden electronic parking brake failure. The vehicle displayed a parking brake fault warning, and the electronic parking brake became stuck in the engaged position and would not release despite repeated attempts and restarting the vehicle. The failure completely immobilized the vehicle and required Ford Roadside Assistance to tow it to an authorized Ford dealership. The Ford dealer diagnosed the issue in writing as: “REAR EPB HARNESS CORRODED; STARTING TO CORRODE ON RR AS WELL; RECOMMEND REPLACING BOTH REAR PIGTAILS WITH UPDATED STYLE.” The dealer therefore found corrosion affecting the electronic parking brake wiring on one rear side and corrosion beginning on the other side. Both rear EPB pigtails are being replaced with an updated-style component. This failure appears substantially similar to the electronic parking brake wiring/connector issue Ford previously identified in Customer Satisfaction Program 22P31 for certain earlier Mustang Mach-E vehicles. Ford's documentation for 22P31 states that damage to the EPB wiring can result in a parking brake malfunction and, in some cases, an inability to disengage the parking brake. My 2023 vehicle is apparently not included in that program despite experiencing a very similar failure mode. I am submitting this complaint because corrosion of the electronic parking brake wiring on a relatively new vehicle resulted in the parking brake becoming permanently engaged and the vehicle being completely immobilized. The dealer also found corrosion developing on the opposite-side EPB wiring and recommended replacement of both sides with updated-style pigtails. I believe NHTSA should evaluate whether this EPB wiring/connector corrosion condition extends to 2023 Mustang Mach-E vehicles beyond the population originally identified by Ford.

NHTSA complaint #11761038 — an unverified report by a vehicle owner.

2023 Ford Mustang Mach E Pahrump, NV Crash 1 injured

LANE DEPARTURE: ASSIST

Vehicle unexpectedly and without driver command steered/pulled to the right, departed the roadway and struck a guardrail. Dashcam footage documents the vehicle’s movement immediately before impact. BlueCruise was not equipped/being used. Driver did not intentionally steer the vehicle from the roadway.

NHTSA complaint #11759414 — an unverified report by a vehicle owner.

2023 Ford Mustang Mach E Pahrump, NV Crash 1 injured

LANE DEPARTURE: ASSIST

Vehicle unexpectedly and without driver command steered/pulled to the right, departed the roadway and struck a guardrail. Dashcam footage documents the vehicle’s movement immediately before impact. BlueCruise was not equipped/being used. Driver did not intentionally steer the vehicle from the roadway.

NHTSA complaint #11759415 — an unverified report by a vehicle owner.

2023 Ford Mustang Mach E Vista, CA

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

We recently brough the Mach E in for a recall of the rear camera. We mention the front camera alerts. They said due to safety concerns, sometime when the back camera goes out it affects all cameras. When we picked up the car, they told use that the front camera, which controls active cruise control, self-driving and emergency stopping is not covered under the recall. How can this not be a safety issue. The cost to fix it is over $4000. Please let me know if there are any upcoming recalls. Thanks!

NHTSA complaint #11758524 — an unverified report by a vehicle owner.

2023 Ford Mustang Mach E Vista, CA

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

We recently brough the Mach E in for a recall of the rear camera. We mention the front camera alerts. They said due to safety concerns, sometime when the back camera goes out it affects all cameras. When we picked up the car, they told use that the front camera, which controls active cruise control, self-driving and emergency stopping is not covered under the recall. How can this not be a safety issue. The cost to fix it is over $4000. Please let me know if there are any upcoming recalls. Thanks!

NHTSA complaint #11758524 — an unverified report by a vehicle owner.

2023 Ford Mustang Mach E Vista, CA

FORWARD COLLISION AVOIDANCE: WARNINGS

We recently brough the Mach E in for a recall of the rear camera. We mention the front camera alerts. They said due to safety concerns, sometime when the back camera goes out it affects all cameras. When we picked up the car, they told use that the front camera, which controls active cruise control, self-driving and emergency stopping is not covered under the recall. How can this not be a safety issue. The cost to fix it is over $4000. Please let me know if there are any upcoming recalls. Thanks!

NHTSA complaint #11758524 — an unverified report by a vehicle owner.

2022 Ford Mustang Mach E Oak Creek, WI

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

Ongoing issues with forward facing radar preventing collision assistance and adaptive cruise control along with lane keep assist from working. Ford knows about this. There is even a TSB. A car manufactured in an era that requires collision prevention should not be allowed to have significant camera faults that prevent safety systems from functioning properly. Unfortunately, the plan for many is to continue operating without these important safety features and crashes will occur as a result. Ford should be required to properly fix their radar system functionality in the Mach-E.

NHTSA complaint #11748663 — an unverified report by a vehicle owner.

2022 Ford Mustang Mach E Oak Creek, WI

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Ongoing issues with forward facing radar preventing collision assistance and adaptive cruise control along with lane keep assist from working. Ford knows about this. There is even a TSB. A car manufactured in an era that requires collision prevention should not be allowed to have significant camera faults that prevent safety systems from functioning properly. Unfortunately, the plan for many is to continue operating without these important safety features and crashes will occur as a result. Ford should be required to properly fix their radar system functionality in the Mach-E.

NHTSA complaint #11748663 — an unverified report by a vehicle owner.

2022 Ford Mustang Mach E Oak Creek, WI

FORWARD COLLISION AVOIDANCE: WARNINGS

Ongoing issues with forward facing radar preventing collision assistance and adaptive cruise control along with lane keep assist from working. Ford knows about this. There is even a TSB. A car manufactured in an era that requires collision prevention should not be allowed to have significant camera faults that prevent safety systems from functioning properly. Unfortunately, the plan for many is to continue operating without these important safety features and crashes will occur as a result. Ford should be required to properly fix their radar system functionality in the Mach-E.

NHTSA complaint #11748663 — an unverified report by a vehicle owner.

2023 Ford Mustang Mach E Sylmar, CA

FORWARD COLLISION AVOIDANCE: WARNINGS

Vehicle in question had problems since day. One computer was affected was never fixed. Many problems ended up in agency for repairs a total of 9 1/2 months and I’ve only have a three year lease on the vehicle and have not been able to use it fully because of electrical and further issues. Litigation found with my attorneys and Ford attorneys, that the vehicle had multiple problems and was issued by a judge, repayment and penalties.

NHTSA complaint #11746355 — an unverified report by a vehicle owner.

2021 Ford Mustang Mach E Merritt, NC

LANE DEPARTURE: ASSIST

Vehicle: 2021 Ford Mustang Mach-E VIN: [XXX] Mileage: 56,005 I am filing this complaint to bring to NHTSA's attention a safety concern regarding Ford Motor Company's decision to make the Blue Cruise driver-assistance system available only via a paid subscription beginning January 2027, at a cost of $49.99 per month. Blue Cruise is a hands-free highway driving assistance system — a Level 2 driver-assistance safety technology. The hardware enabling this system was installed in my vehicle at the time of purchase and was represented as a feature of the vehicle. Ford is now moving to disable this safety feature on existing, in-service vehicles unless owners pay an ongoing subscription fee. I respectfully request that NHTSA examine whether a manufacturer's ability to remotely disable or withhold active safety technology on vehicles already in service — technology that was sold as part of the vehicle — raises concerns under federal motor vehicle safety standards. Specifically: 1. Consumers purchased these vehicles with the reasonable expectation that installed safety hardware would remain functional. 2. Ford's decision to monetize this feature post-sale, on vehicles already in service, effectively degrades the safety capability of those vehicles for owners who cannot or will not pay. 3. The precedent this sets — manufacturers using over-the-air software controls to disable safety features for revenue — warrants regulatory attention. I am not alone in this concern. There are thousands of Blue Cruise-equipped Mustang Mach-E, F-150, and Expedition owners facing this same situation. I respectfully ask NHTSA to investigate whether Ford's subscription model for Blue Cruise is consistent with federal vehicle safety obligations, and whether any regulatory guidance is warranted to protect consumers from the post-sale removal of safety technology. [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11745591 — an unverified report by a vehicle owner.

2021 Ford Mustang Mach E Merritt, NC

FORWARD COLLISION AVOIDANCE: WARNINGS

Vehicle: 2021 Ford Mustang Mach-E VIN: [XXX] Mileage: 56,005 I am filing this complaint to bring to NHTSA's attention a safety concern regarding Ford Motor Company's decision to make the Blue Cruise driver-assistance system available only via a paid subscription beginning January 2027, at a cost of $49.99 per month. Blue Cruise is a hands-free highway driving assistance system — a Level 2 driver-assistance safety technology. The hardware enabling this system was installed in my vehicle at the time of purchase and was represented as a feature of the vehicle. Ford is now moving to disable this safety feature on existing, in-service vehicles unless owners pay an ongoing subscription fee. I respectfully request that NHTSA examine whether a manufacturer's ability to remotely disable or withhold active safety technology on vehicles already in service — technology that was sold as part of the vehicle — raises concerns under federal motor vehicle safety standards. Specifically: 1. Consumers purchased these vehicles with the reasonable expectation that installed safety hardware would remain functional. 2. Ford's decision to monetize this feature post-sale, on vehicles already in service, effectively degrades the safety capability of those vehicles for owners who cannot or will not pay. 3. The precedent this sets — manufacturers using over-the-air software controls to disable safety features for revenue — warrants regulatory attention. I am not alone in this concern. There are thousands of Blue Cruise-equipped Mustang Mach-E, F-150, and Expedition owners facing this same situation. I respectfully ask NHTSA to investigate whether Ford's subscription model for Blue Cruise is consistent with federal vehicle safety obligations, and whether any regulatory guidance is warranted to protect consumers from the post-sale removal of safety technology. [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11745591 — an unverified report by a vehicle owner.

2021 Ford Mustang Mach E Merritt, NC

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Vehicle: 2021 Ford Mustang Mach-E VIN: [XXX] Mileage: 56,005 I am filing this complaint to bring to NHTSA's attention a safety concern regarding Ford Motor Company's decision to make the Blue Cruise driver-assistance system available only via a paid subscription beginning January 2027, at a cost of $49.99 per month. Blue Cruise is a hands-free highway driving assistance system — a Level 2 driver-assistance safety technology. The hardware enabling this system was installed in my vehicle at the time of purchase and was represented as a feature of the vehicle. Ford is now moving to disable this safety feature on existing, in-service vehicles unless owners pay an ongoing subscription fee. I respectfully request that NHTSA examine whether a manufacturer's ability to remotely disable or withhold active safety technology on vehicles already in service — technology that was sold as part of the vehicle — raises concerns under federal motor vehicle safety standards. Specifically: 1. Consumers purchased these vehicles with the reasonable expectation that installed safety hardware would remain functional. 2. Ford's decision to monetize this feature post-sale, on vehicles already in service, effectively degrades the safety capability of those vehicles for owners who cannot or will not pay. 3. The precedent this sets — manufacturers using over-the-air software controls to disable safety features for revenue — warrants regulatory attention. I am not alone in this concern. There are thousands of Blue Cruise-equipped Mustang Mach-E, F-150, and Expedition owners facing this same situation. I respectfully ask NHTSA to investigate whether Ford's subscription model for Blue Cruise is consistent with federal vehicle safety obligations, and whether any regulatory guidance is warranted to protect consumers from the post-sale removal of safety technology. [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11745591 — an unverified report by a vehicle owner.

2021 Ford Mustang Mach E Scotts Valley, CA

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

The front camera system does not function which causes all forward collision safety features to become unavailable, as well as any cruise control or automatic high beam lights. Seems to be a common issues and is related to faulty fiber optic cables.

NHTSA complaint #11744862 — an unverified report by a vehicle owner.

2021 Ford Mustang Mach E Scotts Valley, CA

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

The front camera system does not function which causes all forward collision safety features to become unavailable, as well as any cruise control or automatic high beam lights. Seems to be a common issues and is related to faulty fiber optic cables.

NHTSA complaint #11744862 — an unverified report by a vehicle owner.

2021 Ford Mustang Mach E Scotts Valley, CA

FORWARD COLLISION AVOIDANCE: WARNINGS

The front camera system does not function which causes all forward collision safety features to become unavailable, as well as any cruise control or automatic high beam lights. Seems to be a common issues and is related to faulty fiber optic cables.

NHTSA complaint #11744862 — an unverified report by a vehicle owner.

2025 Ford Mustang Mach E Oxford, MI

FORWARD COLLISION AVOIDANCE: WARNINGS

I was driving normally at about 45 mph with no strong acceleration, after about 20 minutes of driving... Then Cross Traffic Alert, Crash Alert, ABS Failure Alert, Parking Brake Fault Alert, and probably more alerts suddenly went off while driving. Warning Lights for all these features stayed on, and I completely lost regenerative braking and power braking. I'm not sure if I lost anything else because I immediately pulled over, having to stand on the brakes to slowly stop. Once at a stop, I put it in park and warnings about parking brake faults continued to go off. I turned off the car, and warning about a parking brake fault continued to go off. I waited a few seconds and then opened the door to force the normal system shutdown. I pressed the brake and hit the start button again, but it didn't seem to recognize that I had pressed the brake and started in accessory (ACC) mode. After a few more second, I pressed the brake again and hit the start button (while still in ACC Mode), and the vehicle moved to full running mode without all of the warnings. This situation could have easily resulted in a full crash if I were driving at a faster speed and/or if I required immediate stopping.

NHTSA complaint #11742703 — an unverified report by a vehicle owner.

2022 Ford Mustang Mach E Aubrey, TX

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

The vehicle’s rear/360 camera system, SYNC/APIM display system, and Reverse Brake Assist/back-over prevention system appear to have malfunctioned. The vehicle is available for inspection upon request. After a software update was performed by the Ford dealer, the vehicle began displaying the warning message: “Reverse Brake Assist not available — See manual.” At the same time, the rear/360 camera image became distorted and unreliable. The camera display has shown abnormal behavior, including distortion, flickering, black/green screen behavior, and an inaccurate or unclear 360-degree view. This issue was not present before the dealer-performed software update. The safety risk is that the rear camera and Reverse Brake Assist are used when backing up to help detect objects, people, vehicles, or obstacles behind the vehicle. Because the camera image is distorted and Reverse Brake Assist is unavailable, the driver may not receive accurate visual information or automatic braking assistance while reversing. This creates a risk of backing into a pedestrian, another vehicle, property, or an unseen object. The problem has not yet been confirmed by a dealer or independent service center after the failure. UNKNOWN whether Ford has reproduced the issue. The vehicle/component has not yet been inspected by the manufacturer, police, insurance representatives, or others after the issue appeared. UNKNOWN whether the issue is caused by the dealer-performed software update, APIM/SYNC software, rear/360 camera module, camera calibration, camera wiring/connection, or another related system. There were warning messages and symptoms after the failure began. The warning message “Reverse Brake Assist not available — See manual” appeared after the dealer-performed software update. The camera distortion and rear/360 camera display malfunction also appeared after the dea

NHTSA complaint #11741405 — an unverified report by a vehicle owner.

2023 Ford Mustang Mach E Simi Valley, CA

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

While I was driving the brakes did not work. I had to slam on the brakes in order to stop the car. The back portion of the car then skid. The following warnings were sent to the phone and appeared on the dashboard as well. There were more on the dashboard but since I was driving I focused on trying to maneuver the car and not reading the dashboard. Not knowing what happened I continued to drive to duplicate the issue. The brakes were consistently only working when slamming on the brakes (and skidding). There was no traffic, allowing us to rely on driving slow speeds and letting the car to come to natural stops. We took it to the dealership immediately who were unable to duplicate. They diagnosed it as a network overload and attempted to release the car back to us. Currently working with a Ford Advocate as a Network Overload will shut our brakes off again. It's just a matter of when. Which is why they can't duplicate it. They can't predict when the Ford Network that communicates to the MachE braking mechanism will overload again. Powertrain malfunction/Reduced power Powertrain system fault Anti brake fault Anti lock brake system fault Brake system Fault Service brakes Electronic Parking Brake Hill start assist warning Hill start assist fault Pre collision assist not available Collision assist unavailable

NHTSA complaint #11741403 — an unverified report by a vehicle owner.

Other Ford Mustang Mach E problems