RAM 1500 2020 — technical service bulletin
Bulletin 08-242-25 · NHTSA communication 11021826 · issued Aug 6, 2025
Technical service bulletin
communication type
Electrical System
component
2020
model years
1
vehicle entries
Official summary
Flash: Park Assist Module (PAM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B128E-25 - PTS Sensor 1-Signal Shape/Waveform Failure. ● B128F-25 - PTS Sensor 2-Signal Shape/Waveform Failure. ● B1290-25 - PTS Sensor 3-Signal Shape/Waveform Failure. ● B1291-25 - PTS Sensor 4-Signal Shape/Waveform Failure. ● B1292-25 - PTS Sensor 5-Signal Shape/Waveform Failure. ● B1293-25 - PTS Sensor 6-Signal Shape/Waveform Failure. ● B1295-25 - PTS Sensor 8-Signal Shape/Waveform F
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.