Service bulletins for the 2023 Ram 4500
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
294 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Automatic transmission are shown. Show all
| 1808223 | 2023-09-25. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Powertrain Control Module (PCM) Updates Customers may experience the following: ? Cruise control inoperative. This bulletin involves reprogramming the PCM with the latest available software. |
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| 1802323 | 2023-08-21. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? **P1CEA-00 - Boost Side EVAP Purge System Performance.** ? P2300-00 - Ignition Coil A Primary Control Circuit Low. ? P2303-00 - Ignition Coil B Primary Control Circuit Low. ? P2306-00 - Ignition Coil C Primary Control Circuit Low. ? P2309-00 - Ignition Coil D Primary Control Circuit Low. ? P1CEA-00 - Boost Side EVAP Purge System Performance. This bulletin involves reprogramming the PCM with the latest available software. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.