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Service bulletins for the 2012 Dodge Ram

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.

378 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
25-001-172018-06-11. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Diesel Exhaust Fluid This bulletin provides information regarding the Diesel Exhaust Fluid (DEF) vehicle delivery fill guidelines.
307312018-06-11. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING. 04627694AA Purge Control - Valve You have been identified as either having stock, or have stock in transit to your dealership. Suspect stock of part number: 04627694AA must be returned. See attached for identifying suspect stock. Please return suspect parts back to your facing depot using Return Code 02, before 17 April, 2017.
90036942018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. Oil Pump Assembly If error code P06DD present on any Pentastar V6 application, please inspect oil pump for relief valve failure. See photo attached. If valve is found out of place please call Bob Jackson (248) 944-0466 bob.jackson@fcagroup.com, or Joe Lovell (734) 309-6467 joe.lovell@fcagroup.com before proceeding. If unable to reach after 15 minutes record the following information and proceed with oil pump replacement and hold part for return to FCA via Fastrack system
18-012-14 REV. A2018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. Flash: Malfunction Indicator Lamp (MIL) Illumination. Includes Various Driveability Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes have been set: P0300 - Multiple Cylinder Misfire.The P0300 improvement only applies to vehicles using a block heater in ambient temperatures greater than -20°F(-29°C). P2008 - Short Runner Valve (SRV) Control Circuit. P1004 - Short Runner Valve Control Performance. P2016 - Intake Manifold Runner Position Sensor Circuit Low. P2017 - Intake Manifold Runner Position Sensor Circuit High. P0456 - Evap System Small Leak(applies only to vehicles equipped with a CNG engine): Excess gasoline mode operation under normal operating conditions (switching to gasoline mode too often). Slight hesitation on initial acceleration when starting in gasoline mode. Engine speed fluctuation on first gasoline to CNG mode transition under extremely low ambient temps.Also software enhancements were made to improve transmission durability.
25-005-142018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL. Diesel Exhaust Fluid This bulletin provides information regarding the Diesel Exhaust Fluid (DEF) vehicle delivery fill guidelines.
90017622018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. Part Description: Thermostat, Engine Issue Description: Important! There has been an application change to the Cummins turbo diesel thermostat. When replacing a thermostat confirm the correct replacement is choosen.~ 2010, 2011, and 2012 RAM Trucks 2500/3500/4500/5500 engine coolant operating temperature has been increased to 200 degrees requiring thermostat 68067109AA.~ 2009, 2013, and 2014 RAM Trucks 2500/3500/4500/5500 engine coolant operating temperature is 190 degrees requiring thermostat 68005464AA.~ These thermostats are not interchangeable and doing so will result in reduced engine performance.
N08020720132018-06-04. Service bulletin. EQUIPMENT; ENGINE; POWER TRAIN. Advanced Field Action Communication ? N0802072013 Chrysler Group LLC (Chrysler) announced a safety recall on certain 2009 through 2012 model year: (DS) Ram Truck (ND) Dodge Dakota (HB) Dodge Durango (HG) Chrysler Aspen NOTE: All of the above involved vehicles are equipped with a Chrysler 9.25? rear axle (sales code DRB) or C235 rear axle (sales code DRN). The above vehicles may have been built with a rear axle pinion nut that can loosen, which could result in the rear axle locking up. This could cause a loss of vehicle control and/or a crash with little warning. Chrysler will conduct a voluntary safety recall on all affected vehicles to install a rear axle pinion nut retainer. Dealers will be notified of the launch of this safety recall by way of established methods used in the past.
90026882018-06-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING. 68069384A$, R8069384A$, 68086182A$, R8027067A$, RL002012A$ - Gasket, Cylinder Head Cover Before replacing injectors for Diagnostic Trouble Codes P0201, P0202, P0203, P0204, P0205, and/or P0206, please make sure that the wiring loom and/or connector in the valve cover gasket is not the root cause to your concern. In addition, make sure that the wiring attaching nuts are torqued to their proper value.~
09-001-132018-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Gasoline Engine Diagnostic Inspection Procedure This bulletin provides a procedure to determine repair versus replacement of a gasoline long block engine assembly. This procedure is to be used prior to conducting any engine related repairs or removal of engine components.
09-004-16 REV. A2018-06-04. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Cummins Service Engine Replacement This bulletin involves replacing the engine assembly. Remanufactured long block or short block was installed during a prior repair. A new replacement engine will be installed.
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.
18-012-142018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Flash: Malfunction Indicator Lamp (MIL) Illumination. Includes Various Driveability Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes have been set: ? P0300 - Multiple Cylinder Misfire NOTE: The P0300 improvement only applies to vehicles using a block heater in ambient temperatures greater than -20°F(-29°C). ? P2008 - Short Runner Valve (SRV) Control Circuit ? P1004 - Short Runner Valve Control Performance ? P2016 - Intake Manifold Runner Position Sensor Circuit Low ? P2017 - Intake Manifold Runner Position Sensor Circuit High ? P0456 - Evap System Small Leak Customers may also experience any of the following conditions (applies only to vehicles equipped with a CNG engine): ? Excess gasoline mode operation under normal operating conditions (switching to gasoline mode too often) ? Slight hesitation on initial acceleration when starting in gasoline mode ? Engine speed fluctuation on first gasoline to CNG mode transition under extremely low ambient temps
18-022-132018-05-21. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Cummins 6.7L Turbo Diesel Common Diagnostic Process New 6.7L Cummins®Turbo Diesel Common Diagnostic Process is now available as part of the standard diagnostic process located in TechCONNECT>Service Info.
18-012-132018-05-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL; ELECTRICAL SYSTEM:SOFTWARE. FLASH: Diagnostic and System Enhancements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Cab chassis trucks equipped with a 6.7L Cummins diesel have a number of software improvements available. This latest Service Bulletin (SB) will include:Improvements To Prevent Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: P061A - ETC LEVEL 2 TORQUE PERFORMANCE P229F - AFTERTREATMENT NOx SENSOR CIRCUIT PERFORMANCE - BANK 1 SENSOR 2 P2453 - DIESEL PARTICULATE FILTER PRESSURE SENSOR A CIRCUIT PERFORMANCE P2609 - INTAKE AIR HEATER SYSTEM PERFORMANCE P1123 - POWER TAKE OFF SYSTEM MONITOR CONTROL ERROR U010E - LOST COMMUNICATION WITH DIESEL EXHAUST FLUID CONTROL UNIT U059F - INVALID DATA RECEIVED FROM NOx SENSOR "B" P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1; for DTC's set at highway speed and/or high load drive cycles Vehicles with DTC P20EE set in conditions other than highway speed and/or high load drive cycles should have normal diagnostics performed Enhanced Diagnostics For: Selective Catalyst Reduction (SCR) efficiency diagnostic improvements.Other Updates: Too frequent regeneration readiness improvement Correct CAC out voltage in WiTech Add ability to read EMP sensor value in WiTech Enable EMP deicing algorithm Display correct crankcase pressure in WiTech Display correct EGR position in WiTech Improve idle shutdown messages - extra message removed Display correct alternator voltage in WiTech Idle shutdown message on EVIC. Turbo protection feature (Not displayed if vehicle is in park or no vehicle speed). Limits RPM at cold ambient to prevent turbo damage. Scan tool display updates. Correct operation of remote PTO. System robustness improvements.
09-001-132018-02-21. Service bulletin. ENGINE. Gasoline Engine Diagnostic Inspection Procedure This bulletin provides a procedure to determine repair versus replacement of a gasoline long block engine assembly. This procedure is to be used prior to conducting any engine related repairs or removal of engine components.
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.
09-010-16 REV. A2017-11-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Engine Surge Or Hard Start (X63 Warranty Extension) This bulletin involves replacing the Exhaust Gas Recirculation (EGR) valve, if code P0404 is set. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTC) has been set in the Powertrain Control Module (PCM): · P0404 - EGR Position Sensor Performance - (Exhaust Gas Recirculation). In addition, the customer may notice the following condition(s) due to the P0404 DTC being set: · An occasional engine surge can be felt. · Engine is hard to start at times.
09-010-162017-11-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Engine Surge Or Hard Start (X63 Warranty Extension) This bulletin involves replacing the Exhaust Gas Recirculation (EGR) valve, if code P0404 is set. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTC) has been set in the Powertrain Control Module (PCM): · P0404 - EGR Position Sensor Performance - (Exhaust Gas Recirculation). In addition, the customer may notice the following condition(s) due to the P0404 DTC being set: · An occasional engine surge can be felt. · Engine is hard to start at times.
D-16-152016-09-20. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). "(X63) EXHAUST GAS RECIRCULATION (EGR) VALVE - 2012 - 2013 RAM PICKUP (DS) TO ANNOUNCE AN EXTENDED WARRANTY FOR THE EGR VALVE ON THE FOLLOWING SELECT VEHICLES: 2012-2013 RAM 1500 EQUIPPED WITH A 4.7L V8 ENGIND (SALES CODE EVE)"
25-004-132016-06-02. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
25-006-132016-05-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
25-005-142016-05-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
25-004-0132016-05-13. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
25-004-122016-05-13. 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.