*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Power train
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.
Sep 26, 2026Service brakesCrash
I was involved in a car accident on the XXX I was in the turn lane and a second vehicle hit my driver side, spun me around, and I ended up facing the opposite direction. What occurred next is my safety complaint. The vehicle continued to travel forward and, in fact, accelerated and I was unable to turn or stop in spite of hitting the brake. It caused me to hit a third vehicle and I stopped short of a gas line. There was a recall on this vehicle 22S29. The issue was a functional safety monitor software fault which potentially caused unintended acceleration, unintended deceleration, or unexpected movement I purchased the car in 2023. The recall was dated May of 2022 and was noted on the…
Sep 5, 2026Forward collision avoidance › Warnings
This is linked to tracking case 11768528. I wanted to provide the tsb: 23-2040. The fault causes the pre-collision assist to become disabled.
Sep 23, 2026Forward collision avoidance › Warnings
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.
Sep 23, 2026Electrical system
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 vehicle later developed the same type of warning again, and the problem has now resulted in a current high-voltage powertrain malfunction. My vehicle is not included in the existing HVBJB recall (23S56) based on its VIN/build…
Sep 28, 2026Electrical system
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.
Feb 15, 2025Power train
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.
Aug 19, 2025Structure › Body
While driving my front passenger door opened. It has now done it several times while driving the vehicle. Also, I will lock my car and walk into the house and work and my door will open setting my alarm off.
Sep 16, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
