2021 Ford Mustang Mach E engine problems
17 owner complaints filed with NHTSA name the engine on the 2021 Ford Mustang Mach E — 5% of all complaints for this model year.
What owners report
“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…”
filed Aug 6, 2026
“While driving my 2021 Ford Mustang Mach-E, the front electric drive unit failed suddenly with no warning signs, warning lights, unusual noises, or any prior indication of a problem. During the failure, multiple fault messages appeared on the instrument cluster, including warnings that disabled…”
filed Jul 17, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Mustang Mach E years
| Year | Reports | Share |
|---|---|---|
| 2023 Mustang Mach E | 7 | 6% |
| 2022 Mustang Mach E | 15 | 11% |
Other reported problem areas on the 2021 Ford Mustang Mach E
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.