Service bulletins for the 2015 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.
399 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| 9003355 | 2017-11-03. Service bulletin. ENGINE AND ENGINE COOLING. 3.2L - 3.6L Cylinder Head Assy Multiple cylinder head replacement. If a cylinder head is replaced on a vehicle more than 1 time for any reason, please call any of the following people. First: Joe Lovell - Cell (734) 309-6467 joe.lovell@fcagroup.com Second: Kevin Refalo - Cell (248) 260-0738 Kevin.refalo@facgroup.com If no response in 15 minutes, proceed with repair. |
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| 68210071A$ | 2017-11-03. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Intake Grid Heater Grid Heater Relay 2012 - 2016 6.7L Cummins engines with Intake Heater issues or DTC P2609 and P0542, please replace the Intake Heater Grid and Relay as a set. 68210071A$ (relay) and 05187880A$ (grid). Inspect electrical cable between the heater grid and relay for signs of possible overheating. Replace cable as necessary. |
| 18-099-16 | 2017-11-03. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module (ECM) with the latest available software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. NOTE: There will be a choice between two calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration. Improvements to prevent or reduce Malfunction Indicator Lamp (MIL) illumination when no defect is present for the following Diagnostic Trouble Codes (DTCs): · **P20EE - Selective Catalytic Reduction (SCR) NOx Catalyst Efficiency Below Threshold - Bank 1 (For ammonia sensor equipped vehicles).** · P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1 (For ammonia sensor deleted systems only). · P218F - Reductant No Flow Detected. · P242F - Diesel Particulate Filter Restriction - Ash Accumulation. · U110E - Lost Ambient Temperature Message. · P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). · P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. · U3017 - Control Module Timer/Clock Performance. · U1421 - Implausible Ignition Key Off Time Received. · P2281 - Air Leak Between MAF And Throttle Body. Other Software Improvements: · Ambient Air Temperature Improvements. · Operational Improvement for Dual Alternators. · Selective Catalytic Reduction (SCR) Efficiency scan tool test improvement. · Fuel Filter Minder calibration changes. · wiTECH Fuel Pressure Override and Fuel System Run Up test improvements. · Exhaust Gas Recirculation (EGR) system improvement to help prevent freeze up. · Diesel Exhaust Fluid (DEF) system enhancement during stationary regeneration. |
| 68232786A$ | 2017-11-03. Service bulletin. ENGINE AND ENGINE COOLING. Housing: Oil Filter Adapter Cummins equipped trucks ONLY; If you are replacing the oil filter adapter as a result of thread damage to the oil filter connector (Spud), DO NOT replace the entire adapter assembly. The oil filter connector is available separately (Part Number 04429355).~ If ordering an adapter due to some other issue, you must also order an oil bypass valve Mopar Part # 04797726AB, as these are not reusable. Please refer to all applicable published service information for oil bypass valve installation |
| 18-038-16 | 2016-06-22. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.