2021 Ford Mustang Mach-E problems

“On August 8, 2026, my 2021 Ford Mustang Mach-E Premium experienced a serious electronic lockout. The vehicle was running, with the air conditioning and music on, when the doors locked and I was unable to regain entry. My keys, phone, purse, medication, and other essential belongings were inside the vehicle. I attempted multiple methods to regain access, including the driver’s door keypad, but I was unsuccessful. I remained locked out for approximately 7.5 hours and ultimately had to break the windshield to reach inside and unlock the vehicle. My understanding is that Ford had previously performed a recall remedy addressing a potential electronic door-lockout issue on this vehicle. I am concerned that the vehicle experienced a similar safety-related malfunction after that remedy. I do not yet know the precise technical cause and am requesting investigation. Following this incident, my vehicle experienced repeated 12-volt battery and no-start problems. When the vehicle was left at Kenny Ross Ford for diagnosis, I was later unable to get it to respond to the key or show lights or audible signals, and it did not appear to respond when connected to a charger. The…”

“The Pre-Collision Assist becomes suddenly unavailable when driving over uneven surfaces, including bumps and rumble strips. When the service center of my local ford dealer investigated this code, they discovered it is a software issue, and the only way to remedy the problem is to perform 5 software updates and an alignment: The updates are on: IPMA, PSCM, CCM, CMR, PDW. IPMA alignment. There are no other solutions to correct the issue to prevent the safety feature from failing. The impact of this failure is an increased chance of a collision due to sudden loss of front collision detection.”

“2021 model mustang Mache got a new High Voltage Battery Warning on the dashboard and asked to stop the vehicle. My car is Premium trim standard range, but other trims and extended range battery models were recalled for this exact issue earlier, but the premium trim standard range car was not included in recalls. I have read online forums that many people who own standard range cars are seeing this warning suddenly now. Please work with Ford to include standard range cars from 2021 mustang Mache EV to recall for this repair, i think it is also called HVBJB error. I don't have the exact recall number issued for extended range cars earlier for this same error.”

“While accelerating on a highway on-ramp, the vehicle displayed Powertrain Malfunction/Reduced Power, a High-Voltage Battery Warning. Power was reduced while merging into traffic. The same warnings appeared at about 90,000 miles and cleared on their own. This is a Standard Range RWD Mach-E, which was excluded from the high-voltage battery junction box recall. The vehicle was towed to AutoNation Ford Katy and diagnosed with HVBJB failure. Loss of propulsion at highway speeds is a safety hazard. I am requesting that NHTSA investigate whether Standard Range vehicles should be included in the recall.”

“The contact owns a 2021 Ford Mustang Mach-E. While the contact's daughter was driving at an undisclosed speed, the vehicle independently accelerated. The brake pedal was depressed; however, the vehicle failed to stop as intended. No warning lights were illuminated. The contact stated that the failure occurred while the vehicle was being parked in the residence driveway. The vehicle crashed into the right side of the residence before coming to a stop. The air bags did not deploy. The contact stated that the right side of the garage was damaged. No injuries were sustained. The contact stated that the failure was a known failure with the vehicle. The contact stated that an unknown recall with a similar failure was completed in 2022. The vehicle was towed to a local tow yard. The vehicle was deemed a total loss by the insurance company. The manufacturer was not made aware of the failure. The failure mileage was approximately 65,000.”

“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…”