2021 Ford Bronco Sport engine problems

147 owner complaints filed with NHTSA name the engine on the 2021 Ford Bronco Sport — 21% of all complaints for this model year.

147

Engine complaints

21%

share of all complaints

49,700 mi

median reported incident mileage

3 / 10

crash / fire reports

What owners report

“On 9/15/26, while actively driving with my child, the monitor screen suddenly turned black and an error message of "Vehicle Network Communication Error", a few seconds later my dashboard turned black, no display messages, speed limit, or manual gauges were working and that too went blank; blinkers…”
filed Sep 16, 2026
“The vehicle's entire powertrain and transmission system failed completely. The vehicle will not turn on, will not start, and the electronic rotary gear shifter is physically locked out, refusing to shift into Park or Neutral. The transmission assembly component is currently available for physical…”
filed Sep 15, 2026

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

Certain 2021-2024 Model Year Bronco, 2021-2024 Model Year Bronco Sport, 2020-2022 Model Year Corsair and Escape, 2016-2024 Model Year Explorer, 2019-2020 Model Year Fusion, 2016-2018 Model Year Focus RS, 2022-2024 Model…
25B51 · Other · issued May 9, 2026