Ford Bronco Sport 2023–2026 — technical service bulletin
Bulletin 25B33 · NHTSA communication 11034207 · issued Jun 1, 2026
Technical service bulletin
communication type
Engine
component
2023–2026
model years
11
vehicle entries
Official summary
Certain 2023-2025 Model Year Escape and Corsair, 2024-2025 Model Year Nautilus, 2025-2026 Model Year Bronco Sport and 2025 Model Year Maverick Vehicles Equipped with an Engine Block Heater System Block Heater Replacement
Vehicles covered
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.