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Service bulletins for the 2014 Ram 1500

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.

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

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
S2025000001 Rev.2020-12-21. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
90037042020-08-24. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN. Transmission Oil Pan, Heater (TMU), Tube or O-ring Applies to vehicles equipped with 8 speed transmissions only; if you have a leak that appears to be at the pan the use of proper leak detection is recommended. The fluid in the 8 speeds can be detected with a black light and there are aftermarket spray on leak detection materials to help ensure that the leak is properly diagnosed and not from another location such as cooler lines, heater tubes, or case porosity. Please note that the transmission pan gasket is available for many of the 8 speed applications FCA offers. Please review the available quick connect and transfer tube parts, as replacement of the TMU may not be required. If a TOC line connection is found to be the source, the quick connect may need replacement. If the leak source is coming from the connection of the TMU to the transmission, the transfer tube may need replacement. When parts are returned to the QEC the retaining clips (snap ring) for the quick disconnect fittings are missing. (This leaves a question as to whether the clips were missing from the assembly plant, or the technician removed them in order to make line removal easier.) Please return the clips with the transmission heater and note if they were not there to begin with. For any questions regarding transmission heater, contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.
S20080000632020-05-26. Service bulletin. FUEL SYSTEM, DIESEL; ELECTRICAL SYSTEM; POWER TRAIN. Malfunction Indicator Lamp (MIL) on. Diagnostic Trouble Codes (DTCs) P2463 ? Diesel Particulate Filter Soot Accumulation, and P2453 ? Diesel Particulate Filter Differential Pressure Sensor Circuit Performance Set.
V512020-01-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Customer Satisfaction Notification V51 Reprogram Powertrain Control Module
553092019-07-15. Service bulletin. EQUIPMENT; POWER TRAIN. Power Transfer Unit
545832019-07-15. Service bulletin. POWER TRAIN. Transmission ? With Torque Converter
90039882019-07-15. Service bulletin. POWER TRAIN. Brake Transmission Shift Interlock (BTSI) Please contact Stacey Davis at (248) 260-6078 or stacey.davis@fcagroup.com if the following scenario occurs; The T79 or U11 recall was completed where the shifter inspection was acceptable and the software flash was performed but then the customer comes back needing the BTSI bracket replaced for coming out of park without the brake or key.
18-112-152019-05-20. Service bulletin. POWER TRAIN. Flash: Powertrain System Improvements/Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following powertrain system improvements/enhancements are included in this software release. These enhancements are listed by vehicle application. DS vehicles equipped with a 3.6L engine (sales code ERB). * Enhanced Automatic Oil Change Indicator (EAOCI) system improvements to switch to a severe duty cycle algorithm anytime the PCM is replaced to ensure the customer receives a timely oil change required message. * Corrected a generic scan tool display issue regarding Mode 6 data accuracy. DS vehicles equipped with a 5.7L engine (sales code EZH). * System improvements to prevent Malfunction Indicator Lamp (MIL) illumination with a Diagnostic Trouble Code (DTC) P0300 - Multiple Cylinder Misfire when using a block heater in ambient temperatures greater than -20°F (-29°C). * Enhanced Automatic Oil Change Indicator (EAOCI) system improvements to switch to a severe duty cycle algorithm anytime the PCM is replaced to ensure the customer receives a timely oil change required message. * Corrected a generic scan tool display issue regarding Mode 6 data accuracy. DJ, DD, and D2 vehicles equipped with a 5.7L engine (sales code EZC or EZF). * U0140 - Lost Communication With Body Control Module (attempting to clear this DTC will be unsuccessful). * Transmission torque management enhancement when shifting from drive to reverse. * Software to correct Malfunction Indicator Lamp (MIL) illumination with Diagnostic Trouble Code (DTC) P0481 - Cooling Fan 2 Control Circuit/Open setting in the PCM memory. * Enhanced Automatic Oil Change Indicator (EAOCI) system improvements to switch to a severe duty cycle algorithm anytime the PCM is replaced to ensure the customer receives a timely oil change required message. * Corrected a generic scan tool display issue regarding Mode 6 data accuracy. * Improved tran
68317270A2018-11-26. Service bulletin. POWER TRAIN. 2014 KL 9-Speed service transaxle with 2015 common hardware This 9-speed transaxle must be ordered thru Mopar?s Powertrain Service Center (PSC) for a specific VIN and must be installed in that vehicle or the correct calibration will not load to the Engine Control Module (ECM) and Transmission Control Module (TCM).~ This 9-speed transaxle assembly requires an update to the Engine Control Module AND the Transmission Control Module using WiTech. Failure to complete both updates will result in possible damage and/or incorrect operation of this unit.
68211004A2018-11-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. Shifter - Automatic Trans Before this part is replaced for any issue please call John Grzecki on cell (248) 379- 0969. If you do not receive a return call within 15 minutes, proceed with the repair. Please be sure to accurately record any DTCs identified with the scan tool and document them on the repair order.
68090604A2018-11-26. Service bulletin. POWER TRAIN; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). Power Transfer Unit Prior to replacing the PTU, please review the following .~ Check if the service 4WD light is intermittent by driving under heavy throttle will produce a C1494-92 DTC, if yes, please call FCA axle engineering and do not replace the PTU. Bruce Michel at cell (248) 260-8641, or Jian Zhu at cell (248) 379- 1132. If neither answers with 15 minutes then proceed with the repair. ~ If the service 4WD light lamp is on steady then replace the Power Transfer Unit.
21-004-152018-11-19. Service bulletin. POWER TRAIN; ENGINE; ELECTRICAL SYSTEM. Flash: 845RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. The following TCM calibration improvements are available for vehicles equipped an 845RE Automatic Transmission (Sales Code DFL). These updates are listed by vehicle and engine. LD and LX vehicles equipped with a 3.6L engine (Sales Code ERB) ? Software to correct a harsh bump feel during a 2-1 downshift. ? Software to enable the scan tool based transmission ?Quick Learn.? ? Software to address customer concerns of Malfunction Indicator Lamp (MIL) illumination and Diagnostic Trouble Code (DTC) P215C Output Shaft Speed, Wheel Speed Correlation setting on AWD equipped vehicles. LX and WK vehicles equipped with a 3.0L engine (Sales Code EHD) ? Software to correct a harsh bump feel during a 2-1 downshift. WK vehicles equipped with a 3.6L engine (Sales Code ERB) ? ECO mode will not retain settings. If ECO mode is turned off, it will turn back on after the ignition is cycled. ? Software to correct a harsh bump feel during a 2-1 downshift. DS vehicles equipped with 3.6L engine (Sales Code ERB) ? Software to correct a harsh bump feel during a 2-1 downshift. ? Software to address a customer?s concern of less than desired shift quality in Four Wheel Drive (4wd) Low mode during medium to heavy acceleration. ? Software to address customer concerns of Malfunction Indicator Lamp (MIL) illumination and Diagnostic Trouble Code (DTC) P215C Output Shaft Speed, Wheel Speed Correlation setting on AWD equipped vehicles. ? Software improvements to powertrain braking in Tow/Haul mode. ? Software to improve downshift response from a medium to heavy pedal acceleration. ? Driveability improvements at higher altitudes. ? Software to improve acceleration during cruise control operation ? Software to correct a condition where DTC U11C3 - ESM Lost Communication With TCM On D-Pt CAN may have been displayed inste
18-015-152018-09-24. Service bulletin. EXTERIOR LIGHTING; POWER TRAIN. Malfunction Indicator Lamp (MIL) Illumination And/Or Intermittent No Crank No Start This bulletin involves inspecting the Charge Air Cooler (CAC) system for excessive water and/or ice and drying the CAC components if needed. It also involves installing a winter front cover. A small number of customers may experience a MIL illumination when ambient temperatures fall below 32°F (0 °C). Upon further inspection, a technician may find the following Diagnostic Trouble Codes (DTCs). ? P0299 - Turbocharger Underboost Condition ? U1424 - Implausible Engine Torque Signal Received In addition, customer vehicle may come in with a no crank/no start. This may have occurred after the vehicle has been driven for an extended period of time in extremely low ambient and then allowed to sit overnight. Further diagnosis may indicate a possible inoperative starter. DISCUSSION: A possible cause of these concerns may be contributed to internal icing of the Charge Air Cooler (CAC) system and intake manifold. Icing will occur because warm, moist air from the turbo charger is being rapidly cooled and the moisture is then condensed into liquid by the CAC. The liquid is then distributed into the rest of the intake system, which is operating at ambient temperature, where it will then freeze. Vehicles that are driven for extended periods of time are susceptible to higher amounts of ice build up within the intake manifold. Once the vehicle is turned off and allowed to sit, the ice formation in the intake will begin to melt due to the elevated underhood temperatures. The moisture will then run down the intake runners and accumulate in the combustion chamber through an open intake valve causing the engine to hydro-lock. To prevent icing in the CAC system when vehicle is operated in low ambient temperatures, it is highly recommended that the vehicle have winter front cover installed. This raises the CAC outlet temperatures above freezing which will help reduce condensation build up.
21-012-14 REV. A2018-06-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. Transmission Shift Enhancements - Adaptation Drive Learn Procedure This bulletin involves performing a subjective shift quality rating when customers experience poor shift quality and if necessary, performing the transmission adaptation learn procedure. In addition, this bulletin involves performing transmission adaptation learn procedure when the transmission is repaired/replaced and/or the valve body/TCU assembly (mechatronic) is replaced, or when the adaptation memory cells are cleared with the wiTECH diagnostic scan tool. Customers may indicate that their transmission shift quality does not meet their expectations.
18-072-162018-06-11. Service bulletin. EXTERIOR LIGHTING; POWER TRAIN; STRUCTURE; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following powertrain system improvements/enhancements are included in this software release. These enhancements are listed by vehicle application. DS vehicles equipped with a 3.6L engine (Sales Code ERB). U0140 - Lost Communication With Body Control Module (attempting to clear this DTC will be unsuccessful). ASD Relay Enhancements To Improve Fuel Pump Relay Initialization At Key On - (Auto Shutdown). Enhanced Automatic Oil Change Indicator (EAOCI) system improvements to switch to a severe duty cycle algorithm anytime the PCM is replaced to ensure the customer receives a timely oil change required message. Corrected a generic scan tool display issue regarding Mode 6 data accuracy. DS vehicles equipped with a 5.7L engine (Sales Code EZH). U0140 - Lost Communication With Body Control Module (attempting to clear this DTC will be unsuccessful. ASD Relay Enhancements To Improve Fuel Pump Relay Initialization At Key On - (Auto Shutdown). System improvements to prevent Malfunction Indicator Lamp (MIL) illumination with a Diagnostic Trouble Code (DTC) P0300 - Multiple Cylinder Misfire when using a block heater in ambient temperatures greater than -29°C (-20°F). Enhanced Automatic Oil Change Indicator (EAOCI) system improvements to switch to a severe duty cycle algorithm anytime the PCM is replaced to ensure the customer receives a timely oil change required message. Corrected a generic scan tool display issue regarding Mode 6 data accuracy. DJ, DD, and D2 vehicles equipped with a 5.7L engine (Sales Codes EZC or EZF). U0140 - Lost Communication With Body Control Module (attempting to clear this DTC will be unsuccessful). Transmission torque management enhancement when shifting from drive to reverse. Software to correct Malfunction Indicator Lamp (MIL) illumination wi
68056356A$2018-06-11. Service bulletin. POWER TRAIN. Axle Assembly, Axle Carrier, Axle Ring and Pinion Engineering is currently investigating concerns with pinion seals on the 2014-15 MY Ram 1500 Pick-up with a rear axle manufactured within the October to November 2014 calendar year. Please contact Ridhan Riyal at cell (810) 513-3832 for further instruction. If he cannot be reached with 15 minutes proceed with your repair.~ The DS Limited Slip Differential operates as a torque sensing device because when torque is applied to the differential gear set the reaction forces of the bevel gears apply an axial force into the clutch system providing the torque bias. When the input torque is very low the reaction forces will decrease allowing the differential to ACT SIMILIAR TO A OPEN DIFFERENTIAL (zero preload). Please do not confuse this with prior model year Limited Slip Differentials. See the service manual for complete details.
18-025-14 REV. A2018-06-11. Service bulletin. POWER TRAIN. Flash: Powertrain System Improvements/Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following powertrain system improvements/enhancements are included in this software release. These enhancements are listed by vehicle application.DS vehicles equipped with a 3.6L engine (sales code ERB). Enhanced Automatic Oil Change Indicator(EAOCI) system improvements to switch to a severe duty cycle algorithm anytime the PCM is replaced to ensure the customer receives a timely oil change required message. Corrected a generic scan tool display issue regarding Mode 6 data accuracy.DS vehicles equipped with a 5.7L engine (sales code EZH). Charging system voltage regulator control improvements. System improvements to prevent Malfunction Indicator Lamp (MIL) illumination with a Diagnostic Trouble Code (DTC) P0300 - Multiple Cylinder Misfire when using a block heater in ambient temperatures greater than -20°F (-29°C). Enhanced Automatic Oil Change Indicator(EAOCI) system improvements to switch to a severe duty cycle algorithm anytime the PCM is replaced to ensure the customer receives a timely oil change required message. Corrected a generic scan tool display issue regarding Mode 6 data accuracy.DJ, DD, and D2 vehicles equipped with a 5.7L engine (sales code EZC) Transmission torque management enhancement when shifting from drive to reverse. Software to correct Malfunction Indicator Lamp (MIL) illumination with Diagnostic Trouble Code (DTC) P0481 - Cooling Fan 2 Control Circuit/Open setting in the PCM memory. Enhanced Automatic Oil Change Indicator(EAOCI) system improvements to switch to a severe duty cycle algorithm anytime the PCM is replaced to ensure the customer receives a timely oil change required message. Corrected a generic scan tool display issue regarding Mode 6 data accuracy. Improved transmission Quick Learn routine performance
21-003-14 REV. A2018-06-11. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: 845RE Transmission Shift Enhancements, 2-1 Downshift This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. The following TCM calibration improvements are available for vehicles equipped an 845RE Automatic Transmission (Sales Code DFL). These updates are listed by vehicle and engine.LD and LX vehicles equipped with a 3.6L engine (Sales Code ERB) Software to correct a harsh bump feel during a 2-1 downshift. Software to enable the scan tool based transmission ?Quick Learn.? Software to address customer concerns of Malfunction Indicator Lamp (MIL) illumination and Diagnostic Trouble Code (DTC) P215C Output Shaft Speed, Wheel Speed Correlation setting on AWD equipped vehicles.LX and WK vehicles equipped with a 3.0L engine (Sales Code EHD) Software to correct a harsh bump feel during a 2-1 downshift.WK vehicles equipped with a 3.6L engine (Sales Code ERB) Software to correct a harsh bump feel during a 2-1 downshift.DS vehicles equipped with 3.6L engine (Sales Code ERB) Software to correct a harsh bump feel during a 2-1 downshift. Software to address a customer?s concern of less than desired shift quality in Four Wheel Drive (4wd) Low mode during medium to heavy acceleration. Software to address customer concerns of Malfunction Indicator Lamp (MIL) illumination and Diagnostic Trouble Code (DTC) P215C Output Shaft Speed, Wheel Speed Correlation setting on AWD equipped vehicles. Software improvements to powertrain braking in Tow/Haul mode. Software to improve downshift response from a medium to heavy pedal acceleration. Driveability improvements at higher altitudes. Software to improve acceleration during cruise control operation Software to correct a condition where DTC U11C3 - ESM Lost Communication With TCM On D-Pt CAN may have been displayed instead of U11E3 - TCM Lost communication with ESM On D-PT CAN.WD vehicles equipped with a 3.6L engine (Sales Code ERB)
21-030-14 REV. A2018-06-11. Service bulletin. POWER TRAIN. 845RE Transmission Quick Learn Procedure This bulletin provides information on how to perform the new scan tool based transmission Quick Learn procedure. This procedure is required after certain transmission repairs or to improve a customer's concern of poor shift quality. Customers may indicate that their transmission shift quality does not meet their expectations.
21-030-142018-06-11. Service bulletin. POWER TRAIN. 845RE Transmission Quick Learn Procedure This bulletin provides information on how to perform the new scan tool based transmission Quick Learn procedure. This procedure is required after certain transmission repairs or to remedy a customer?s concern of poor shift quality. Customers may indicate that their transmission shift quality does not meet their expectations.
21-012-14 REV. B2018-06-11. Service bulletin. POWER TRAIN. 8 Speed Transmission Shift Adaptation, Drive Learn Procedure This bulletin involves performing a Transmission Adaptation Learn procedure based on a subjective shift quality rating evaluation.The adaptation drive learn procedure must be performed on all 8-speed transmissions when the transmission is repaired/replaced and/or the Valve Body/TCU assembly (mechatronic) is replaced, or when the adaptation memory cells are cleared with the wiTECH diagnostic scan tool. Customers may indicate that their transmission shift quality does not meet their expectations.
08-072-142018-06-11. Service bulletin. POWER TRAIN. Intermittently The Vehicle Will Not Shift Out Of Park This bulletin involves replacing the electronic shifter, if required. The customer may experience not being able to shift out of park. This condition can be corrected by turning off the vehicle and allowing all of the modules to go to sleep. Once the modules have gone through a key cycle the DTC will go from active to stored and then the vehicle can be shifted out of park. On further inspection DTCs P0607-00-ECU INTERNAL PERFORMANCE and P0928-00-BTSI CONTROL may be found active or stored.
21-025-142018-06-11. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING. Vehicle Remains in First Gear Too Long After Engine Restarts With Stop/Start Feature This bulletin involves flash reprogramming of the Transmission Control Module (TCM) with new software. Customers may indicate that the vehicle remains in first gear too long after the engine restarts with the Stop/Start feature.
21-016-142018-06-11. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Transmission Shift Enhancements This bulletin involves flash reprogramming of the Transmission Control Module (TCM) with new software. The customer may indicate that they may have experienced any of the following: ? 4x4 Low Mode shift quality during a medium to heavy throttle ? MIL Illumination for DTC P215C - OUTPUT SHAFT SPEED WHEEL SPEED CORRELATION In addition, calibration changes have been made in the following areas to improve: ? Powertrain braking while in Tow/Haul mode ? Downshift response from a medium to heavy pedal ? Drivability at high altitude ? Acceleration performance during cruise control operation This calibration release also corrects a condition where DTC U11C3 may have been displayed when DTC U11E3 should have been displayed resulting in a possible misdiagnosis.
18-028-142018-06-11. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Flash: MIL Illumination - Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that any of the following Diagnostic Trouble Code(s) may have been set erroneously: ? ? P0045-00 - TURBOCHARGER BOOST CONTROL CIRCUIT/OPEN ? P0087-00 - FUEL RAIL PRESSURE TOO LOW ? P009A-00 - INTAKE AIR TEMPERATURE / AMBIENT AIR TEMPERATURE CORRELATION ? P0128-00 - THERMOSTAT RATIONALITY ? P0234-00 - TURBOCHARGER OVERBOOST CONDITION ? P0420-00 - CATALYST EFFICIENCY (BANK 1) ? P0426-00 - CATALYST TEMPERATURE SENSOR CIRCUIT PERFORMANCE (BANK 1 SENSOR 1) ? P05F8-00 - REDUCTANT HEATER CONTROL MODULE PERFORMANCE ? P050E-00 - COLD START ENGINE EXHAUST TEMPERATURE TOO LOW ? P200A-00 - INTAKE MANIFOLD RUNNER PERFORMANCE - BANK 1 ? P200B-00 - INTAKE MANIFOLD RUNNER PERFORMANCE - BANK 2 ? P202E-00 - REDUCTANT INJECTION VALVE CIRCUIT PERFORMANCE ? P204F-00 - REDUCTANT SYSTEM PERFORMANCE ? P2080-00 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE ? P20BA-00 - REDUCTANT HEATER 1 CONTROL CIRCUIT PERFORMANCE ? P20BE-00 - REDUCTANT PRESSURE LINE HEATER CONTROL CIRCUIT PERFORMANCE ? P20C2-00 - REDUCTANT HEATER 3 CONTROL CIRCUIT PERFORMANCE ? P20E9-00 - REDUCTANT PRESSURE TOO HIGH ? P20EE-00 - SCR NOX CATALYST EFFICIENCY BELOW THRESHOLD BANK 1 ? P225C-00 - NOX SENSOR 1/1 PERFORMANCE - SIGNAL STUCK HIGH ? P225D-00 - NOX SENSOR 1/1 PERFORMANCE - SIGNAL STUCK LOW ? P2453-00 - DIESEL PARTICULATE FILTER DIFFERENTIAL PRESSURE SENSOR CIRCUIT PERFORMANCE ? P249C-00 - EXCESSIVE TIME TO ENTER CLOSED LOOP REDUCTANT INJECTION CONTROL ? P24C2-00 - EXHAUST GAS TEMPERATURE MEASUREMENT SYSTEM - MULTIPLE SENSOR CORRELATION BANK 1 ? P24F2-00 - EGR TEMPERATURE/CHARGE AIR COOLER TEMPERATURE CORRELATION ? P2564-00 - TURBOCHARGER POSITION SENSOR C

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