Ford F-150 2016 — technical service bulletin
Bulletin 16U11 · NHTSA communication 10183752 · issued Apr 19, 2016
Technical service bulletin
communication type
Engine and Engine Cooling
component
2016
model years
2
vehicle entries
Official summary
In some of the affected vehicles, the engine coolant to water concentration may be less than specification. Low coolant concentration could result in reduced cooling system freeze protection, reduced corrosion resistance, heater and radiator performance degradation, and water pump noise or leaks
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.