2021 Ford Mustang Mach E electrical system problems
Updated from NHTSA data · How we count
154 owners have reported electrical system problems with the 2021 Ford Mustang Mach E, 44% of all complaints about this model year. The typical problem appeared around 30,696 mi.
- Electrical System complaints
- 154
- Crashes
- 2
- Fires
- 1
- Injuries
- 1
- Related recalls
- 4
- Median mileage
- 30,696 mi
Specific components reported
Electrical System covers: Battery, wiring, infotainment, instrument cluster, communication and software.
| Component | Complaints |
|---|---|
| Electrical system | 147 |
| Electrical system:propulsion system:charging:cable/cord:accessory | 2 |
| Electrical system:body control module/bcm | 1 |
| Electrical system:instrument panel:speedometer/odometer | 1 |
| Electrical system:instrument panel:speedometer/odometer:sensor/sending unit | 1 |
| Electrical system:propulsion system:charging:module:accessory | 1 |
| Electrical system:propulsion system:traction battery:management system/energy control module (bms/becm) | 1 |
| Electrical system:12v/24v/48v battery | 1 |
Electrical System complaints across Ford Mustang Mach E years
Mileage when the problem appeared
Related recalls
- ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE · LATCHES/LOCKS/LINKAGES:DOORS:LATCH
Ford Motor Company (Ford) is recalling certain 2021-2025 Mustang Mach E vehicles. In the event of a low battery charge, the electronic door latches may remain locked once the driver or front passenger exits and shuts the door, possibly trapping someone who is unable to use the inside door release handles, such as a child in the back seat.
Risk: The inability to enter or exit the vehicle in an emergency increases the risk of injury.
Remedy: Dealers will update the Powertrain Control Module (PCM) and the Secondary On-Board Diagnostic Control Module C (SOBDMC) software, free of charge. Owner notification letters were mailed to 2021-2025 Mustang Mach-E owners September 12, 2025. Additionally, Owner notification letters were mailed to 2024-2025 Mustang Mach-E owners July 10, 2025. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S65.
- ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM):SOFTWARE
Ford Motor Company (Ford) is recalling certain 2021-2022 Mustang Mach-E vehicles previously repaired incorrectly under recall number 22V-412. The high voltage battery main contactors may overheat.
Risk: An overheated high voltage battery contactor may cause the vehicle to lose drive power, increasing the risk of a crash.
Remedy: Dealers will update the on-board software, free of charge. Owner notification letters were mailed April 11, 2025. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S14.
- ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM)
Ford Motor Company (Ford) is recalling certain 2021-2022 Mustang Mach-E vehicles equipped with an extended range battery. The high voltage battery main contactors may overheat.
Risk: An overheated high voltage battery contactor can result in a loss of drive power, increasing the risk of a crash.
Remedy: Dealers will replace the high voltage battery junction box, free of charge. Owner notification letters were mailed December 29, 2023. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 23S56. Vehicles included in this recall that were previously repaired under recall 22V-412 will need to have the new remedy completed.
- ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM):SOFTWARE
Ford Motor Company (Ford) is recalling certain 2021-2022 Mustang Mach-E vehicles. The high voltage battery main contactors may overheat.
Risk: An overheated high voltage battery contactor may cause the vehicle to lose drive power, increasing the risk of a crash.
Remedy: Dealers will update the on-board software, free of charge. Owner notification letters were mailed on July 8, 2022. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 22S41.
What owners say
- Filed Sep 28, 2026TXElectrical SystemTransmission & Drivetrain
I own a 2021 Ford Mustang Mach-E Standard Range RWD. My vehicle has experienced a high-voltage powertrain malfunction involving the high-voltage battery system/HV Battery Junction Box (HVBJB). The vehicle is currently at a Ford dealership for diagnosis and repair. What concerns me is that the same high-voltage/powertrain warning appeared on my vehicle previously, before the vehicle reached 100,000 miles. The warning appeared in my FordPass history, then went away. The…
NHTSA complaint #11767486 · source - Filed Sep 28, 2026WIElectrical SystemFuel, Hybrid & EV Propulsion
My 2021 Mustang MachE experienced a failure of the relay which connects its high-voltage battery to the rest of the car. The car is an EV, and the result of this is that the drive-motor had no power, and the car would not move. I would like to ask, please, that all model years with this known-issue (HVBJB - high voltage battery junction box) be recalled.
NHTSA complaint #11767362 · source - Filed Sep 28, 2026TXElectrical SystemFuel, Hybrid & EV PropulsionTransmission & Drivetrain
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…
NHTSA complaint #11767349 · source - Filed Sep 1, 2026CAElectrical System
My 2021 Ford Mustang Mach-E (142,009 miles) intermittently fails to accept a charge at public DC fast-charging stations. My husband relies on these stations because our home electrical panel cannot support a home EV charger, and he uses this vehicle daily for his work in commercial real estate, often needing to charge it twice a day while traveling throughout Southern California. We first brought the vehicle to Tuttle-Click’s Capistrano Ford (San Juan Capistrano, CA) for…
NHTSA complaint #11761335 · source - Filed Aug 20, 2026DCElectrical System
This is the information from the Ford dealership that was looking at my vehicle, but did not complete the repair: "Verified customer concern. During diagnosis, the following on-demand DCs were retrieved from the BECM: POAA1:00, POAA4:00, and P0563:00. Following TSB 25- 2247, a High Current Fuse Box is required for replacement to start. During the FDRS High Voltage System De-energizing procedure, FDRS detected a stuck contactor. After opening the LVSD as instructed, FDRS…
NHTSA complaint #11758351 · source - Filed Aug 9, 2026CAElectrical SystemOther / Unknown
While merging onto the freeway and accelerating, the center touchscreen detached from its mount. The screen has two components: a rear housing fixed to the dash and a glass front panel that sits on top of it — the glass panel came loose on its own; I have never attempted to remove or pry it. The panel remained connected only by internal wiring and hung loose from the dash while the vehicle was in motion. This created three distinct safety hazards: (1) the screen was dangling…
NHTSA complaint #11755696 · source - Filed Aug 6, 2026NJElectrical SystemEngineFuel, Hybrid & EV Propulsion
The HVBJB ($3500 + Tax) went on my car. It is out of battery system warranty by 25,000 miles (ended at 100,000 miles, I have 125,000 miles). I called Ford Corporate and they said they "have no current programs" to give me any good will discount on the repair. This is a big, known issue with Mustang Mach-e's There was a recall for this HVBJB part / system on many of the 2021 models, but somehow mine wasn't included in the recall. I cannot afford this repair, and I was hoping…
NHTSA complaint #11755300 · source - Filed May 27, 2026NYDriver Assistance & Safety TechElectrical System
This is a safety issue. The front collision assist is not working. I have returned the car to the Ford Dealer (Biener Ford) several times but the dangerous issue persists. I'm not the only one. There are many complaints listed on the web and the Ford Mach E forum. Ford needs to recall their EV Ford Mach-E vehicles and fix this dangerous safety issue once and for all.
NHTSA complaint #11740320 · source - Filed May 7, 2026AZDriver Assistance & Safety TechElectrical System
The car gives two messages, "Front Camera Fault Service Required" and "Pre-Collision assist not available." The cruise control does not work, however, the front camera does work. I had the vehicle scan done at the Ford dealer and was told it needs a 7 hour software update, after which it may need cables replaced. I do not understand how software goes bad. I do understand something may have happened to cables but that would not be checked until they had charged me $ 1,400 for…
NHTSA complaint #11736423 · source - Filed Feb 19, 2026ILElectrical SystemOther / UnknownTransmission & Drivetrain
Vehicle experienced immediate loss of motive power while in motion at 45 mph after "Stop Safely Now" alert. This is a repeat power failure. The vehicle was in service for 75+ days (Dec-Feb) for this exact defect. The Ford service center said they replaced the “battery controller” yet the issue recurred. The car previously flagged this alert while in motion 2 times prior (one on the highway going ~65mph and on another major street going roughly ~45 mph). As a Ford Reacquired…
NHTSA complaint #11719257 · source - Filed Feb 7, 2026PAElectrical SystemFuel, Hybrid & EV PropulsionVisibility & Wipers
After recall-related software updates were performed on my 2021 Ford Mustang Mach-E, the vehicle began experiencing repeated electrical and climate control failures. The heating and defrost system stopped working, leaving the vehicle without heat and causing the windows to fog, which reduces visibility in cold weather and creates unsafe driving conditions. The vehicle has been taken to multiple authorized Ford dealerships for inspection and repair; however, the problem…
NHTSA complaint #11716499 · source - Filed Jan 22, 2026FLElectrical SystemTransmission & Drivetrain
I am requesting immediate escalation regarding my 2021 Ford Mustang Mach-E (VIN: [XXX] ), which is currently undrivable due to being stuck in “Power Accessory Active” mode. The vehicle will not enter Drive. The dealer has diagnosed DCEM / high-voltage system-related faults and stated that recall repairs cannot be completed unless I first pay approximately $3,000 to repair the “main battery.” My concern is that the symptoms and failure mode exactly match the known…
NHTSA complaint #11712665 · source
Other 2021 Ford Mustang Mach E problem areas
- Driver Assistance & Safety Tech (112)
- Transmission & Drivetrain (52)
- Other / Unknown (50)
- Fuel, Hybrid & EV Propulsion (49)
- Acceleration & Cruise Control (37)
- Brakes (32)
- Visibility & Wipers (20)
- Engine (17)
- Steering (15)
- Body & Structure (9)
- Lighting (4)
- Seats & Seat Belts (3)
- Suspension (2)
Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology