2023 Ford Mustang Mach E Engine Problems

I am reporting a recurring safety defect involving my 2023 Ford Mustang Mach-E Premium. The defect appears to involve the high-voltage battery system, powertrain system, and High Voltage Battery Junction Box (HVBJB). The vehicle and related components are available for inspection upon request. My vehicle experienced failures on May 28, 2026, June 25, 2026, and October 1, 2026. Prior to each failure, the vehicle displayed "High Voltage Battery Warning" and "Powertrain Malfunction/Reduced Power" messages. Following these warnings, the vehicle became completely inoperable and would not start. This has now occurred three times, indicating a recurring defect rather than an isolated incident. This defect created safety risks for both myself and others. During the first incident on May 28, 2026, the vehicle became inoperable while in the drive-through lane of a busy coffee shop. Because the vehicle could not be started or moved, it blocked access to the drive-through during peak morning and lunch periods, forcing the business to temporarily close the drive-through lane. This created a traffic obstruction and left me stranded. On all three occasions, the vehicle became unusable without warning, creating the risk of being stranded and unable to safely rely on the vehicle for transportation. The vehicle was taken to a Ford dealership after each incident for inspection and diagnosis. Despite multiple service visits, the issue has not been permanently resolved, and the same warnings and failure conditions continue to occur. The vehicle and components have been inspected following each incident; however, no repair has successfully corrected the problem or prevented it from recurring. The repeated occurrence of High Voltage Battery Warning, Powertrain Malfunction/Reduced Power, and HVBJB shutdown conditions that render the vehicle unable to start raises serious concerns about the reliability and safety of the vehicle. I am requesting that NHTSA investigate this defect.

NHTSA ID

11769941

Incident

May 28, 2026

After stopping the vehicle to run an errand, the vehicle locked up. The steering wheel would not turn. The vehicle would not shift into any gear. The vehicle was inoperable and I found myself stranded 25 miles from home. The vehicle was towed to our local Ford dealership where it has been for the past two weeks. This failure could just as occurred on the road causing a dangerous situation.

NHTSA ID

11701311

Incident

Nov 8, 2025

I’ve had this situation happen at least 2 to 3 times but specifically I’ll talk about the most recent. I was reversing out of my parking spot approximately 20 feet or so to where I can turn around and circle around the parking lot and exit. When I switched over to drive the vehicle accelerated rapidly unprompted. I was able to stop it by using the break, but I can also see how this could be a significant safety issue.

NHTSA ID

11692968

Incident

Oct 11, 2025

Recall Action Soon Issue Since 06-20-2025 Powertrain control module and secondary on-board diagnostic control module c software upddate For More Information Telematics Generated Issue Recall Action Soon Issue Since 04-25-2025 Drivers side seat buckle replacement For More Information Telematics Generated Issue Recall Action Soon Issue Since 11-08-2024 2021-2023 model year mach-e vehicles paint sealant issues - door hems inspection - repair For More Information Telematics Generated Issue

NHTSA ID

11674869

Incident

Jun 20, 2025

Recall Action Soon Issue Since 06-20-2025 Powertrain control module and secondary on-board diagnostic control module c software upddate For More Information Telematics Generated Issue Recall Action Soon Issue Since 04-25-2025 Drivers side seat buckle replacement For More Information Telematics Generated Issue Recall Action Soon Issue Since 11-08-2024 2021-2023 model year mach-e vehicles paint sealant issues - door hems inspection - repair For More Information Telematics Generated Issue

NHTSA ID

11674867

Incident

Jun 20, 2025

I have a 2023 Mach e premium on lease.  
I drive using single pedal mode. 
Three days ago I pulled into a parking spot in front of a restaurant in a plaza. When I took my foot off the accelerator the car came to a complete stop (as it should have ) … about a half a second later, before I could put the transmission into park, the vehicle went full throttle and jolted forward up over the curb onto the plaza sidewalk and crashed into a full brick column. I slammed on the breaks as fast as I could, but if the brick column was not there, we would have crashed into the restaurant. There is damage to the front drivers side of the vehicle. The airbags did not deploy. The beeping sensors never went off. Honestly, the experience scared the crap out of me. We’re lucky no one was injured. 
Ford has the car at the dealership now. 
they told me that something seems to have malfunctioned. They told me that the car should have deployed the airbags, the sensors should have went off, a deceleration stamp should be logged in the vehicle data and it should be telling ford that the car experienced a collision. None of that happened. 
needless to say, they are now telling me that because they can’t mimic the problem, Ford is instructing them to return the vehicle to me. 
they have nothing to repair, and are not taking ownership for the damage. I honestly don’t want to take the car back. 
my wife isn’t comfortable driving it anymore as she feels it’s a safety risk.

NHTSA ID

11654233

Incident

Apr 8, 2025

I was driving along the road at 35 mph when the vehicle lost power and refused to accelerate or keep speed. The cluster flashed a warning indicating "Stop Safely Now", so I pulled over and came to a stop, and I shifted to P. Thereafter, the vehicle shut off and would not start, continuing to indicate to "Service Vehicle Now", as well as additional new errors, including "Service Powertrain", "Full Accessory Power", "Collision Assist Unavailable", and at least 8 other errors that would not go away. Two red lights were indicated on the cluster - one of them looks like a car with a "!" through it, and the other is a wrench. The vehicle is charged every night to 95% using a Level 2 CCS charger directly to the vehicle's charging port, no adapters. The vehicle had 91% battery remaining when this occurred. About 20 minutes after the incident, while waiting for a tow truck, the vehicle went completely dead and all components were unresponsive. The ignition would not activate, the doors would not open, and the open doors would not properly shut (the electronic catch mechanisms were not catching the door to keep it shut). I could not activate the screen to put it into Emergency Tow mode. The vehicle has 17,999 miles and was purchased brand new in September 2023 with 0 miles.

NHTSA ID

11637805

Incident

Jan 22, 2025

Vehicle will suddenly without warning change driving "mode". This includes while in motion or when vehicle is parked, shut off, and re-started. I had submitted video of this occurring many times to the Ford Service Dealer. Vehicle will disengage from "One-Pedal Driving" mode without warning. This is a serious driving hazard because the normal "brake regen" feature to slow and stop the vehicle is suddenly no longer "engaged". Vehicle will no longer receive safety updates via vehicle OTA (over the air) updates to address these and other vehicle defects. The last OTA was in June 2024 with a regression/repeat update manually applied at the Ford Service Dealer in September 2024. The vehicle is now substantially out of date with respect to safety and other vehicle OTA updates. The Ford Service Dealer cannot repair these problems. They have attempted to address and repair without success, even claiming in Sept 2024 this vehicle was "road-tested" by their Technician, however the mileage on the odometer had not changed since the vehicle was left at the Ford Service Dealer. Lastly, regarding the active recall on the vehicle, 5 Ford Service Dealers in the area stated the NHTSA Recall is "unnecessary" and the manufacturer (Ford) knows the replacement parts are not available. Specifically, I was informed my vehicle would remain "parked" waiting for service for 4-6 weeks before any diagnosis or repairs would be made.

NHTSA ID

11634956

Incident

Sep 26, 2024