RAM 2500 2018–2020 — technical service bulletin
Bulletin D-19-02 Rev. E · NHTSA communication 10177507 · issued Jun 3, 2020
Technical service bulletin
communication type
Fuel System, Diesel
component
2018–2020
model years
9
vehicle entries
Official summary
Fast Feedback Program - 6.7L Cummins Engine - 2019 & 2020 HD Ram & 6.7L Cummins Diesel Engine Control Module (ECM) - 2018 Ram- All Models (Rev. E)
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.