RAM 2500 2021–2022 — technical service bulletin
Bulletin S2118000001RevB · NHTSA communication 10230318 · issued Jul 27, 2022
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2021–2022
model years
8
vehicle entries
Official summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0471 ? Exhaust Pressure Sensor 1 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.