Ford Explorer 2016–2018 — technical service bulletin
Bulletin 21N01 · NHTSA communication 10201085 · issued Aug 19, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2016–2018
model years
3
vehicle entries
Official summary
This program provides a no-cost, one-time repair (if needed) to the high-speed cooling fan relay and respective electrical terminals, if affected, to ten (10) years of service or 150,000 miles from the warranty start date of the vehicle, whichever occurs first.
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.