RAM Promaster 2014–2016 — technical service bulletin
Bulletin 2500323 · NHTSA communication 10243259 · issued Aug 17, 2023
Technical service bulletin
communication type
Fuel System, Diesel
component
2014–2016
model years
3
vehicle entries
Official summary
3.0L Diesel Emissions Warranty Extension XB0 Possible Malfunction Indicator Lamp (MIL) illumination after installation of updated engine calibrations.
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.