RAM 1500 2025 — technical service bulletin
Bulletin 08-139-25 · NHTSA communication 11017976 · issued Apr 30, 2025
Technical service bulletin
communication type
Electrical System
component
2025
model years
1
vehicle entries
Official summary
"Digital Key Control Module (DKCM) Transceiver Position Calibration Technicians may comment on the following: ● Technician finds Diagnostic Trouble Code (DTC) ""B1898-00 - Digital Key Control Module Sensors Not Learned"" has set erroneously with no Malfunction Indicator Lamp (MIL) illumination or actual customer facing symptoms This bulletin involves performing the DKCM Transceiver Position calibration. "
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.