RAM 2500 2019–2022 — technical service bulletin
Bulletin S2121000008RevC · NHTSA communication 10221399 · issued Jun 2, 2022
Technical service bulletin
communication type
Power Train
component
2019–2022
model years
8
vehicle entries
Official summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P0765 ? UD Solenoid Circuit, P0871 ? Transmission Fluid Pressure Sensor/Switch ?C? Circuit Performance, and/or P0755 ? 2C Solenoid Circuit, 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.