RAM 2500 2023 — technical service bulletin
Bulletin 18-066-25 · NHTSA communication 11021023 · issued Jul 24, 2025
Technical service bulletin
communication type
Electrical System
component
2023
model years
1
vehicle entries
Official summary
Not applicable to vehicles built for US market. Flash: Powertrain Control Module (PCM) 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): ● P0868-00 - Transmission Fluid Pressure Low. ● P0933-00 - Hydraulic Pressure Sensor Range/performance ● P0735-00 - Gear 5 Shift Incorrect Ratio. ● P0729-00 - Gear 6 Shift Incorrect Ratio. Customers may also experience one or more of the following: ● While driving the vehicle, the Instrument Panel Cluster (IPC) is showing a transmissi
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.