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Service bulletins for the 2016 Ram 3500

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.

490 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
18-027-16 REV. A2018-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. DTCs have been changed from a one trip fault to a two trip fault: · **P0421 - Catalyst 1 Efficiency Below Threshold Bank 1.** · P2280 - Air Flow Restriction / Leak Between Air Cleaner And MAF. · P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low. · P208D - (Diesel Exhaust Fluid) Reductant Pump Control Circuit High. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · P2281 - Air Leak Between MAF and Throttle Body. · P218F - Reductant No Flow Detected. · P0218 - Transmission High Temperature Operation Activated (68RFE Only). · P0868 - Line Pressure Low, MIL Action (68RFE Only). · U110E - Lost Ambient Temperature Message. · P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release: · **Reduction in engine noise during regeneration at idle.** · 68RFE Transmission Overall Shift Quality Improvements. · Test results fix for partial range misfire (68RFE Only). · Ambient Air Temperature Improvements. · Stationary Desoot with wiTECH Fix. · OBD Misfire Monitoring Improvement (68RFE Only).
25-003-17 REV. A2018-06-04. Service bulletin. ENGINE AND ENGINE COOLING. Flash: Dosing Control Unit (DCU) Diagnostic and System Improvements This bulletin involves reprogramming the DCU with the latest available software and if necessary replacing the unit. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Codes (DTCs):P207F - Reductant Quality Performance. P202C - Reductant Tank Heater Control Circuit High. P203B - Reductant Level Sensor 1 Circuit Performance.
90034662018-06-04. Service bulletin. ENGINE AND ENGINE COOLING. Rear Crank Shaft Oil Seal and Retainer Plate For Cummins equipped vehicles only; If you are working on a 2016 or 2017 vehicle ONLY and are replacing the Rear Main Seal for oil leak, replace seal, retainer and gasket using PNs; 05086755A$, 05086754A$, 05015705A$. Remove the retainer with the seal installed. Please do not disturb seal in retainer when removing from engine. Please refer to detailed repair instructions in DealerConnect TechConnect for oil seal retainer replacement. Cummins Engineering is currently investigating the root cause of the oil leak concern and would like to analyze these parts. Please contact Chad Eichbrecht at cell (248) 309-2695 to arrange for part return. If you do not receive a response within 15 minutes, please proceed with normal repair.
90033572018-06-04. Service bulletin. ENGINE AND ENGINE COOLING. Pentastar Oil Filter Adapter All vehicles equipped with a 3.2L or 3.6L engine; If replacing the Oil Filter Adapter (OFA) due to a leak detected between OFA and block, an O-ring kit (68191356AA) is now available to repair OFA/Block Interface leaks. Using dye will assist in determining source of leak. Ensure OFA Cap Oring is seated in the proper groove in the cap and not damaged or cut. Engineering is seeking information regarding OFA leaks. Questions/info can be directed to: Bob Jackson Cell (248) 944-0466 - bob.jackson@fcagroup.com Ron Dallison Cell (248-292-9510) ron.dallison@fcagroup.com Joe Lovell Cell (734) 309-6467 - joe.lovell@fcagroup.com If a response is not received within 15 mins, then proceed with the necessary repair.
90037402018-06-04. Service bulletin. ENGINE AND ENGINE COOLING. Oil Pan 2012-2017 Cummins engines with oil pan leaks, please inspect the shallow area of the oil pan for cracks. If cracks are found, please replace as necessary. Cracks are typically found above the cross member area. Please contact Chad Eichbrecht at cell (248) 309-2695 to arrange for part return or email chad.w.eichbrecht@fcagroup.com If you do not receive a response within 15 minutes, please proceed with normal repair.
RL108213A$2017-11-03. Service bulletin. ENGINE AND ENGINE COOLING. NAG1 (5A580) Valve Body As per Warranty Bulletin D-13-22, please use R2108213A$ valve body for all Warranty (W), Mopar (M) and Mopar Vehicle Protection (F) claims.~ Assembly also includes Filter (52108325AA) and Gasket (52108332AA).~
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.
05086755A$2017-11-03. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING. Rear Crank Shaft Oil Seal and retainer plate For Cummins equipped vehicles only;~ If replacing Rear Main Seal for oil leak, replace seal and retainer as a set PN; 9003466. Please do not disturb seal in retainer when removing from engine.~ Cummins Engineering is currently investigating the root cause of the oil leak concern. If there are any questions, please contact Chad Eichbrecht at cell (248) 309-2695~ If you do not receive a response within 15 minutes, please proceed with normal repair
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
68232614A$2017-11-03. Service bulletin. ENGINE AND ENGINE COOLING. Intake Manifold Gasket Intake Manifold Gaskets on Pentastar Upgrade (Sales Code ERC/ERF) are reusable provided they are not cut, torn or melted. The gaskets are not required by warranty to be replaced like they are on Pentastar Classic (ERB/EHB). The new gaskets are not interchangeable with Pentastar Classic Intake Manifold Gaskets.
68206041A$2016-09-15. Service bulletin. POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. "FAN SUPPORT ASSEMBLY, FAN SUPPORT BEARING, FAN PULLEY IF YOU ARE REPLACING THIS PART DUE TO FAN HUB BEARING FAILURE, PLEASE ALSO REPLACE THE FAN CLUTCH ASSEMBLY USING CURRENT MOPAR STOCK (PART NUMBER 52014729A$).~ ONCE INSTALLED, CONTACT CHRISTINE DONEGAN AT (866) 799-1692 EXT 1257 TO INITIATE A FAST TRACK REQUEST FOR THE RETURN OF THE PARTS FOR ANALYSIS."
18-039-162016-06-22. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-18-072-152015-12-03. Service bulletin. ENGINE; EQUIPMENT. 2016 RAM 2500 PICKUP; RAM 3500 PICKUP: CUSTOMERS MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP ILLUMINATION. PROCEDURE ON REPROGRAMMING ENGINE CONTROL MODULE/POWERTRAIN CONTROL MODULE WITH LATEST SOFTWARE AVAILABLE *CN

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.