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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: Fuel system are shown. Show all

Bulletins, newest first
90042672022-10-17. Service bulletin. FUEL SYSTEM, GASOLINE. FUEL, Tank Please be advised, do not replace fuel tanks with a fuel tank that has a different capacity than the vehicle was equipped with from the factory. Please do not attempt to upfit vehicles at the dealer with increased capacity tanks, they are not compatible.
25005142022-09-26. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. Diesel Exhaust Fluid This bulletin provides information regarding the Diesel Exhaust Fluid (DEF) vehicle delivery fill guidelines.
25001212022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Dual EVAP System Extreme Duty Vapor Canister Filter Kit This informational bulletin is to make technicians aware that an EVAP dual vapor canister filter kit(Mopar part #68478013AA)is available in place of the OEM single vapor canister filter.This kit should not be installed on vehicles driven in normal conditions that are not subjected to the below symptom/conditions. Customers operating fleet or severe/extreme duty gasoline vehicles in continuous dusty driving conditions can plug the single OE filter system and may experience a Malfunction Indicator Lamp (MIL) illumination. Upon furtherinvestigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set:P0441 - EVAP Purge System Performance. P062A - Fuel Pump Control Performance. Customers may also experience the following conditions:Hard to fill fuel tank with fuel. Premature shut-off of the gas nozzle when refueling. Flow back of fuel while refueling.
25-001-172022-08-08. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. Diesel Exhaust Fluid This bulletin provides information regarding the Diesel Exhaust Fluid (DEF) vehicle delivery fill guidelines.
90036942022-08-08. Service bulletin. FUEL SYSTEM, GASOLINE. 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
25-004-122022-07-25. Service bulletin. BACK OVER PREVENTION; POWER TRAIN; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Malfunction Indicator Lamp Illumination Due To Oxygen Sensor This bulletin involves replacement of the Oxygen Sensor Connectors for any Oxygen Sensor related DTC. Do NOT replace any parts prior to performing this bulletin and the Verifications test below. If the vehicle has any of the following DTC?s for O2 Sensors, Stored, Pending or Active, perform the Repair Procedure. ? P013A O2 Sensor 1/2 Slow Response - Rich To Lean (Soot related code, see note) ? P013B O2 Sensor 1/2 Slow Response - Lean To Rich (Soot related code, see note) ? P014C O2 Sensor 1/1 Slow Response - Rich To Lean (Soot related code, see note) ? P014D O2 Sensor 1/1 Slow Response - Lean To Rich (Soot related code, see note) ? P0030 O2 Sensor 1/1 Heater Circuit ? P0031 O2 Sensor 1/1 Heater Circuit Low ? P0032 O2 Sensor 1/1 Heater Circuit High ? P0036 O2 Sensor 1/2 Heater Circuit Malfunction ? P0037 O2 Sensor Heater Circuit Low 1/2 ? P0038 O2 Sensor Heater Circuit High 1/2 ? P0053 O2 Sensor Heater 1/1 Resistance ? P0054 O2 Sensor Heater 1/2 Resistance ? P064D Internal Control Module 02 Sensors Processor Performance - Bank 1 ? P0131 1/1 02 Sensor Shorted To Ground ? P0132 1/1 02 Sensor Shorted To Voltage ? P0135 O2 Sensor 1/1 Heater Performance ? P0137 1/2 02 Sensor Shorted To Ground ? P0138 1/2 02 Sensor Shorted To Voltage ? P0141 O2 Sensor 1/2 Heater Performance ? P113C O2 Sensor Power Supply Circuit Performance ? P2195 O2 Sensor 1/1 Out Of Range High ? P2196 O2 Sensor 1/1 Out Of Range Low ? P22AB O2 Sensor Positive Current Control Circuit/Open - Bank 1 Sensor 2 ? P22AE O2 Sensor Reference Voltage Circuit/Open - Bank 1 Sensor 2 ? P22B2 O2 Sensor Negative Current Control Circuit/Open - Bank 1 ? P22B5 O2 Sensor 1/2 Pump Cell Current Trim Circuit Open ? P2237 O2 Sensor 1/1 Pump Cell Current Circuit Low ? P2243 O2 Sensor 1/1 Reference Voltage Circuit Open ? P2251 O2 Sensor 1/1 Negative Current Control Circuit/Open ? P2270 O2 Sensor 1/2 Out Of R
14-005-122022-07-25. Service bulletin. FUEL SYSTEM, OTHER:FUEL FILTER; UNKNOWN OR OTHER. Heavy Duty Filtration MOPAR Retrofit or Add On Parts Available
18-001-132021-03-29. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL; BACK OVER PREVENTION; POWER TRAIN; ELECTRICAL SYSTEM; SERVICE BRAKES. Flash: Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Pickup trucks equipped with a 6.7L Cummins diesel have software improvements/enhancements available for the following DTC's: P049D - EGR CONTROL POSITION EXCEEDED LEARNING LIMIT P0101 - MASS AIR FLOW SENSOR "A" CIRCUIT PERFORMANCE P0191 - FUEL RAIL PRESSURE SENSOR CIRCUIT PERFORMANCE P2000 - NOx ABSORBER EFFICIENCY BELOW THRESHOLD (Diagnostic improvements) P2002 - DIESEL PARTICULATE FILTER EFFICIENCY BELOW THRESHOLD (for high altitude failures) P2195 - O2 SENSOR 1/1 OUT OF RANGE HIGH P2196 - O2 SENSOR 1/1 OUT OF RANGE LOW P2270 - O2 SENSOR 1/2 OUT OF RANGE HIGH P2271 - O2 SENSOR 1/2 OUT OF RANGE LOW P241A - O2 SENSOR 1/1 AND 1/2 OXYGEN CONCENTRATION MISMATCH P242F - DIESEL PARTICULATE FILTER RESTRICTION - ASH ACCUMULATION P2453 - DIESEL PARTICULATE FILTER PRESSURE SENSOR A CIRCUIT PERFORMANCE P2609 - INTAKE AIR HEATER SYSTEM PERFORMANCEVehicles flashed to address the above codes should be driven and repair validated. If code(s) return, follow diagnostic procedures available in DealerCONNECT/TechCONNECT.Improvements other than DTC robustness or enhancements: Improve cruise control functionality Display correct EGR position on WiTech Corrected CAC Outlet temperature voltage reading Display Correct alternator voltage in WiTech Correct for OBD II Readiness for frequent regeneration monitor Correct water in fuel (WIF) parameter to wiTECH ScanTool may report a code as stored, even though the fault has been cleared by completing a significant number of drive cycles without a repeat occurrence Active codes not always displayed correctly Engine derate with IOD removed. This will help prevent turbo damage due to oil thickening in cold climate start up on new vehicles in transit Scan tool readiness reporting issues EGR Valve cleaning and monitoring enhancements to help reduce occurrences of P04
25-001-212021-03-15. Service bulletin. FUEL SYSTEM, GASOLINE. Dual EVAP System Extreme Duty Vapor Canister Filter Kit This informational bulletin is to make technicians aware that an EVAP dual vapor canister filter kit(Mopar part #68478013AA)is available in place of the OEM single vapor canister filter.This kit should not be installed on vehicles driven in normal conditions that are not subjected to the below symptom/conditions. Customers operating fleet or severe/extreme duty gasoline vehicles in continuous dusty driving conditions can plug the single OE filter system and may experience a Malfunction Indicator Lamp (MIL) illumination. Upon furtherinvestigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set:P0441 - EVAP Purge System Performance. P062A - Fuel Pump Control Performance. Customers may also experience the following conditions:Hard to fill fuel tank with fuel. Premature shut-off of the gas nozzle when refueling. Flow back of fuel while refueling.
18-039-202020-05-26. Service bulletin. FUEL SYSTEM, GASOLINE. Possible Driveability Issues due to the Winter-Blend Fuel into the Warmer Season
552722019-07-15. Service bulletin. FUEL SYSTEM, GASOLINE. Tube- Fuel Filler
551362019-07-15. Service bulletin. FUEL SYSTEM, GASOLINE. Tube- Fuel Filler
131102018-12-17. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP. Title 68146401AA: Tube - Fuel Filler Start Date: 10/19/2015 7:00 AM End Date Message You have been identified as either having stock, or have stock in transit to your dealership. Please return all suspect stock of following part number: 68146401AA. See the attached file for identifying suspect material. Please return suspect parts back to your facing depot using Return Code 02, before 09 November, 2015. Return any open orders in process too. Direct all questions via email to mopardmail@fcagroup.com.
130032018-12-17. Service bulletin. EQUIPMENT:OTHER:LABELS; FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES. Title Inspection and return of PN 68210332AA - FUEL PRESSURE SENSOR Start Date: 10/6/2015 7:00 AM End Date Message You are receiving this email as you have been identified to have stock on hand or have stock in transit to your dealership. Reports of dealers receiving incorrect fuel pressure sensors packaged as 68210332AA. Correct and suspect parts can be identified visually by the color of the label on the sensors. Correct sensors have white color label on the part whereas the suspect sensors have yellow colored labels. Reference pictures attached for visual identification. Please inspect stock on hand and return any suspect parts found back to your facing PDC using MRA code 02. Replacement parts can be obtained by reordering the same part number. Direct all questions via email to vn83@chrysler.com
68210300A2018-11-26. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:AUXILLARY TANK. Fuel tank Before replacing this part, please call Keith Kerby on his Cell (248) 420-5540 OR Manuel Gandara on cell (248) 622 8109 ~ Mexican Dealers please call Ricardo Lozada at cell +52 1 55 1370 3187. If no return call in 15 minutes, continue with repair.
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.
311272018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP; FUEL SYSTEM, GASOLINE. Housing Assy - Fuel Filler Door Youhave been identified aseither having stock,or have stock in transit toyour dealership. Please return allsuspect stock of part numbers:68148794AH,68148794AF,68148794AD,68156453AH,68156453AF, 68156453AD,68161542AE,68161542AD.See attachment for identifying suspect material. Please return suspect partsback toyour facing depot using Return Code 02,before 19April,2017.
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.
25-002-142018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; POWER TRAIN. Malfunction Indicator Lamp Illumination Due To Oxygen Sensor This bulletin involves the installation of an Oxygen (O2) Sensor Overlay Harness for any Oxygen Sensor related DTC(s). The Overlay Harness will consist of twelve 18 AWG wires (six from each Oxygen Sensor) that run to a new Oxygen Sensor Module connector. Four wires will be removed from the original vehicle O2 Module connector and installed in the new overlay harness O2 Module connector.Do NOT replace any parts prior to performing this bulletin and the Verifications test below. If the vehicle has any of the following DTC?s for O2 Sensors, Stored, Pending or Active, perform the Repair Procedure. P013A O2 Sensor 1/2 Slow Response - Rich To Lean (Soot related code, see note). P013B O2 Sensor 1/2 Slow Response - Lean To Rich (Soot related code, see note). P014C O2 Sensor 1/1 Slow Response - Rich To Lean (Soot related code, see note)P014D O2 Sensor 1/1 Slow Response - Lean To Rich (Soot related code, see note) P0030 O2 Sensor 1/1 Heater Circuit P0031 O2 Sensor 1/1 Heater Circuit Low P0032 O2 Sensor 1/1 Heater Circuit High P0036 O2 Sensor 1/2 Heater Circuit Malfunction P0037 O2 Sensor Heater Circuit Low 1/2 P0038 O2 Sensor Heater Circuit High 1/2 P0053 O2 Sensor Heater 1/1 Resistance P0054 O2 Sensor Heater 1/2 Resistance P064D Internal Control Module 02 Sensors Processor Performance - Bank 1 P0131 1/1 02 Sensor Shorted To Ground P0132 1/1 02 Sensor Shorted To Voltage P0135 O2 Sensor 1/1 Heater Performance P0137 1/2 02 Sensor Shorted To Ground P0138 1/2 02 Sensor Shorted To Voltage P0141 O2 Sensor 1/2 Heater Performance P113C O2 Sensor Power Supply Circuit Performance P2195 O2 Sensor 1/1 Out Of Range High P2196 O2 Sensor 1/1 Out Of Range Low P22AB O2 Sensor Positive Current Control Circuit/Open - Bank 1 Sensor 2 P22AE O2 Sensor Reference Voltage Circuit/Open - Bank 1 Sensor 2 P22B2 O2 Sensor Negative Current Control Circuit/Open - Bank 1 P22B5 O2 Sensor 1/2 Pump Cel
90025032018-06-11. Service bulletin. EQUIPMENT; POWER TRAIN; BACK OVER PREVENTION; VISIBILITY; SUSPENSION; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Part Description: RHR Radio Issue Description: Issue 1: While performing RHR radio reflash (software update), on rare occasions, the flash can fail to properly update the radio resulting in the radio running in Emergency IFS mode. This error condition can occur due to interrupting the software update, background radio operations interfering with the reflash process, etc. The radio will reboot, but with limited functionality (examples may include but are not limited to: NAV, Voice Recognition, Bluetooth, or AUX jack are inop, no available space shown on HDD, etc.). The radio can still be properly updated by simply reinserting the software update disc and performing the reflash procedure again. To assist in the verification that the radio is running Emergency IFS perform the following:~ 1. Power on radio~2. Press MENU H/K~3. Press System Setup S/K~4. Press Manage HDD S/K~5. Press Display Available Space on HDD S/K~6. When running Emergency IFS, all items under Used, Available, and Capacity report as dashes~ Issue 2: If you are having troubles connecting a phone or a MP3 player, try removing the battery on the device and then going through the pairing/connection procedure again. If you cannot remove the battery on the device, perform a reboot. Each manufacturer has a different series of buttons to hold down to perform a reboot. If the problem still persists, try the device on another like vehicle with the same radio. If you are having the same connection issues on another like vehicle, the device may be faulty or it may not be compatible with the RHR radio. Go to www.chrysler.com/hostb/crossbrand/owners/en and click on ?Bluetooth Phone Compatibility Test Results? link for a list of phones that are compatible. For MP3 players and media storage devices, only .wma, .aac, .mp3, .sacd, .jpeg & .jpg files are supported. Remove all other file types and reevaluate the concern. ~ Issue 3: If upgrading a vehicle from a low line radio that has factory installed UConnect
18-016-142018-05-21. Service bulletin. FUEL SYSTEM, 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.
18-022-132018-05-21. 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.
14-005-122018-05-14. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, OTHER:FUEL FILTER. Heavy Duty Filtration MOPAR Retrofit or Add On Parts Available
18-066-16 REV. A2017-11-03. Service bulletin. FUEL SYSTEM, GASOLINE; POWER TRAIN; ELECTRICAL SYSTEM. Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. Some customers may describe one or more of the following: MIL Illumination Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · P2096 - Downstream Fuel Trim System 1 Lean (5.7L Engines). · P2097 - Downstream Fuel Trim System 1 Rich (5.7L Engines). · P2098 - Downstream Fuel Trim System 2 Lean (5.7L Engines). · P2099 - Downstream Fuel Trim System 2 Rich (5.7L Engines). Drivability Improvements: · MIL Lamp without DTC Active - Permanent Fault Code Issue (fix permanent fault code retention). · ASD Relay (to improve fuel pump relay initialization at key on). · Fuel pump relay operation at key on. · Engine seems to lacks power at high engine RPMs (5.7L and 4.7L Engines). · Shudder or shake condition on wide open throttle stab during downshift event (5.7L and 4.7L Engines). · EVAP Diagnostic Enhancements. This diagnostic routine will be disabled while the vehicle is in decel fuel shut off mode.(3.7L/4.7L Engines only). · Audible knock sound on WOT launches (DJ/DD 5.7L Engines only). Transmission Improvements: · High engine RPMs needed before vehicle will upshift from 3rd to 4th. (5.7L and 4.7L Engines). · Harsh 1st to 2nd gear upshift (5.7L and 4.7L Engines). · Unexpected or busy downshift while coasting between 45-48 mph (72-77 kmh) (DS 5.7L Engines only).

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