RAM 3500 2020 — technical service bulletin
Bulletin 1805522 · NHTSA communication 10229153 · issued Mar 18, 2022
Technical service bulletin
communication type
Electrical System
component
2020
model years
3
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module (ECM) / PowertrainControl Module (PCM) with the latest available software.
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.