RAM 2500 2023–2025 — technical service bulletin
Bulletin S2503000003 · NHTSA communication 11018615 · issued May 28, 2025
Technical service bulletin
communication type
Power Train
component
2023–2025
model years
3
vehicle entries
Official summary
Rear Axle Locker Inoperative, Service Axle Locker Message Displayed. Discussion: Some customers may experience a, inop rear axle locker, and Service Axle Locker message. After further investigation, the technician may not find any diagnostic trouble codes (DTCs) set. However, intermittently, they may find the following DTCs set in the Drivetrain Control Module (DTCM). • C141C-11 Rear Differential Control Circuit Short To Ground. • C141C-13 Rear Differential Control Circuit Open. If the technician is working on a vehicle with the above condition, please perform the repair procedure below. Repai
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.