RAM 1500 2022 — technical service bulletin
Bulletin S2221000001 · NHTSA communication 10227987 · issued Apr 5, 2022
Technical service bulletin
communication type
Power Train
component
2022
model years
1
vehicle entries
Official summary
Customer complaint may include a Mil/check engine lamp on condition. Other driveablility complaints may include, trans will not shift, stuck in gear, vehicle in limp mode, lack of power, vibration. Upon further investigation, a DTC for U0402 - Implausible Data Received From TCM may be set in the PCM.
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.