Ford Bronco 2016–2024 — technical service bulletin
Bulletin 25B51 · NHTSA communication 11033577 · issued May 9, 2026
Technical service bulletin
communication type
Engine
component
2016–2024
model years
43
vehicle entries
Official summary
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 Year Maverick, 2016-2019 Model Year MKC and 2019-2024 Model Year Ranger Vehicles Equipped with a 2.0L or 2.3L Engine and Engine Block Heater System Block Heater Replacement
Vehicles covered
- 2021 Ford Bronco
- 2022 Ford Bronco
- 2023 Ford Bronco
- 2024 Ford Bronco
- 2021 Ford Bronco Sport
- 2022 Ford Bronco Sport
- 2023 Ford Bronco Sport
- 2024 Ford Bronco Sport
- 2020 Ford Escape
- 2021 Ford Escape
- 2022 Ford Escape
- 2016 Ford Explorer
- 2017 Ford Explorer
- 2018 Ford Explorer
- 2019 Ford Explorer
- 2020 Ford Explorer
- 2021 Ford Explorer
- 2022 Ford Explorer
- 2023 Ford Explorer
- 2024 Ford Explorer
- 2016 Ford Focus
- 2017 Ford Focus
- 2018 Ford Focus
- 2019 Ford Fusion
- 2020 Ford Fusion
- 2019 Ford Fusion Hybrid
- 2020 Ford Fusion Hybrid
- 2022 Ford Maverick
- 2023 Ford Maverick
- 2024 Ford Maverick
- 2019 Ford Ranger
- 2020 Ford Ranger
- 2021 Ford Ranger
- 2022 Ford Ranger
- 2023 Ford Ranger
- 2024 Ford Ranger
- 2020 Lincoln Corsair
- 2021 Lincoln Corsair
- 2022 Lincoln Corsair
- 2016 Lincoln MKC
- 2017 Lincoln MKC
- 2018 Lincoln MKC
- 2019 Lincoln MKC
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.