Ford F-250 2017–2018 — technical service bulletin
Bulletin TSB 18-2278 · NHTSA communication 10149750 · issued Sep 14, 2018
Technical service bulletin
communication type
Engine
component
2017–2018
model years
6
vehicle entries
Official summary
Some 2017-2018 F-Super Duty vehicles equipped with a 6.7L engine may exhibit a concern where the DEF level indicator appears to be stuck in the full position. Follow the Service Procedure steps to correct the condition.
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.