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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.

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
1129062026-07-02. Service bulletin. ENGINE. BEARING - CRANKSHAFT THRUST and KIT
1129062026-07-02. Service bulletin. ENGINE. BEARING - CRANKSHAFT THRUST and KIT
18048232023-05-30. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
S21090000042023-01-17. Service bulletin. ENGINE AND ENGINE COOLING. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
S22090000042022-12-19. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. If a Mopar oil filter is not available, use a filter that meets or exceeds USCAR36 specification and is compatible with semi and full synthetic oils.
683328102022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. Service - Four Piece Oil Pan Gasket All Cummins Equipped Vehicles ONLY - The replacement oil pan gasket can be a four piece gasket rather than a single piece gasket. This applies to Cummins 5.9L and 6.7L engines only. Installation: 1. Clean the oil pan T-joints.~ 2. Fill the T-joint between the pan rail/gear housing and pan rail/rear seal retainer with sealant. Use Mopar® Silicone Rubber Adhesive Sealant or equivalent. 3. Apply a 2-mm [0.063-in] bead of Mopar Engine Sealant RTV Silicone Rubber Adhesive, to the oil pan flange.~ 4. The four piece gasket will need to be assembled to make a complete oil pan gasket. 5. Lay the oil pan gasket(s) onto the oil pan flange.~ 6. Ensure the oil pan gasket segment joints are properly aligned. 7. Apply a 2-mm [0.063-in] bead of Mopar Engine Sealant RTV Silicone Rubber Adhesive, to the top of the oil pan gasket.~ 8. Install the oil pan. Starting from the center and working outward, tighten the oil pan bolts to 28 N·m [21 ft. lbs.].
90028872022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. Part Description: Valve Body Assembly Issue Description: Valve body design was changed between 2010MY and 2011MY applications. To prevent mix matching valve bodies and solenoid packs the connectors are color coded.~ Valve bodies with a white connector can be used on 2010, 2009, 2008..., model years. Valve bodies with a gray connector can only be used on 2011, 2012, 2013..., model years.~ Solenoid packs with a white connector are used with 2010, 2009, 2008..., model years. Solenoid packs with a gray connector are used with 2011, 2012, 2013..., model years.
S21090000042022-09-26. Service bulletin. ENGINE AND ENGINE COOLING. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
90043502022-09-26. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. GEAR MOTOR, Transfer Case The gear motor assembly is shipped in AWD/2WD position. The transfer case needs to be positioned in AWD/2WD position to properly assemble gear motor to T-Case. Please reference Star Online publication S2121000003 for further details. Do not have the transfer case in in another position other than AWD/2WD and rotate the motor to align the bolt holes as this could result in damage to the gear motor.
S1709000010RevB2022-09-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR; UNKNOWN OR OTHER. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
90044122022-09-15. Service bulletin. ENGINE AND ENGINE COOLING. MASTER CYLINDER, Brake A new master cylinder reservoir has been made available that is backward compatible but not interchangeable with old parts as follows: 68144489AA MASTER CYLINDER (OLD) or 68144492AA RESERVOIR (OLD) should be replaced with 68285796AA MASTER CYLINDER AND 68285797AA RESERVOIR (NEW) in pairs and not individually.
90037402022-09-15. 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.
90017622022-08-22. Service bulletin. POWER TRAIN; 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.
0900416REVA2022-08-22. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin involves replacing the engine assembly.
90026882022-07-25. Service bulletin. WHEELS; 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.~
18-012-132022-07-25. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; ENGINE. 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.
18-022-132022-07-18. Service bulletin. ENGINE AND ENGINE COOLING. 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.
S1709000010 Rev.2022-07-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
0900416 REV A2022-07-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. This bulletin involves replacing the engine assembly.
S1709000010 RevB2022-05-31. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
90033572021-04-26. Service bulletin. ENGINE AND ENGINE COOLING. ADAPTER, Engine Oil Filter (Pentastar V6) All vehicles equipped with a 3.2L or 3.6L except for model year 2014 vehicles with leak concern: 1) Ensure the Oil Filter Adapter (OFA) Cap O-ring is seated in the proper groove in the cap and not damaged or cut. 2) If replacing the (OFA) due to a leak detected between (OFA) and block. Ensure the torque on the 5 bolts are torqued to 12nm. If not record the actual values, torque to 12nm and contact the FCA employees listed below. 3) Remove the (OFA) and replace the O-ring and gaskets only (Kit #68191356A$), NOT THE OFA. 4) If oil was drained, add oil dye to ensure the leak is repaired. For model year 2014 vehicles replace the Oil Filter Adaptor. 5) When replacing PN's 68310865A$ & 68308741A$, it may be necessary to transfer the Oil Temp/Pressure Sensor from the old OFA to the new OFA.
90043502021-04-26. Service bulletin. ENGINE AND ENGINE COOLING. GEAR MOTOR, Transfer Case The gear motor assembly is shipped in AWD/2WD position. The transfer case needs to be positioned in AWD/2WD position to properly assemble gear motor to T-Case. Please reference Star Online publication S2121000003 for further details. Do not have the transfer case in in another position other than AWD/2WD and rotate the motor to align the bolt holes as this could result in damage to the gear motor.
18-022-132021-03-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; EQUIPMENT. Cummins 6.7L Turbo Diesel Common Diagnostic Process New 6.7L Cummins®Turbo Diesel Common Diagnostic Process is now available as part of the standard diagnostic process located in TechCONNECT>Service Info.
S1709000010 Rev.2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary.
90039682019-10-28. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; ENGINE. CONDENSER, Air Conditioning If it is determined that the A/C compressor does not engage due to a refrigerant leak at the receiver/drier plug on the A/C condenser, order the receiver/drier plug kit P/N 68447796A$ and follow the repair instructions included on the instruction sheet.

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