Ford Explorer Police Intercept 2020 — technical service bulletin
Bulletin 20B21-S1 · NHTSA communication 10180375 · issued Sep 17, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020
model years
3
vehicle entries
Official summary
Certain 2020 Model Year Transit vehicles with 3.5L engines and F-150 / Police Interceptor Utility vehicles with 3.3L engines - Cylinder Head Replacement
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.