RAM 2500 2019–2021 — technical service bulletin
Bulletin S2118000012 · NHTSA communication 10230222 · issued Jul 28, 2021
Technical service bulletin
communication type
Exterior Lighting
component
2019–2021
model years
12
vehicle entries
Official summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0607 ? ECU Internal Performance, Set.
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.