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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
21-012-142018-06-11. Service bulletin. 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.
21-011-142018-06-11. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. Flash: Improved Medium to Heavy Throttle Downshift Response This bulletin involves flash reprogramming of the Transmission Control Module (TCM) with new software. Customers may indicate that the vehicle does not downshift quick enough under medium to heavy throttle.
18-025-142018-06-11. Service bulletin. POWER TRAIN. Flash: Powertrain System Improvements/Enhancements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. The following powertrain system improvements/enhancements are included in this software release: ? Enhanced Automatic Oil Change Indicator(EAOCI) system enhancements that force the use of the severe duty cycle algorithm anytime the PCM is replaced. The vehicle duty cycle information used in the EAOCI calculation is stored in the PCM and cannot be recovered/transferred when the controller is replaced. As a result, the severe duty cycle is used in these scenarios 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 (Applies only to DJ vehicles)
BJA465972018-06-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN. Job aid - If you have a suspected TC shudder/vibration, check the Interactive Network for Service Bulletins for the vehicle you are working on. A test-drive snap shot may help you isolate the source of the issue.
18-028-14 REV. A2018-05-21. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:COOLING SYSTEM. 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
18-072-16 REV. A2016-11-08. Service bulletin. POWER TRAIN. "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.
18-072-162016-09-16. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. "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.
68056356A$2016-09-15. Service bulletin. POWER TRAIN:AXLE HUBS; 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."
21-012-142016-06-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
21-012-14REV.A2016-06-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
21-030-142016-05-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
16-001-142015-03-24. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. CHRYSLER: DODGE RAM, CUSTOMERS MAY EXPERIENCE A EXTENSIVE VIBRATION COMING FROM THE REAR OF THE VEHICLE WHICH REQUIRES THE REAR SHAFT REPLACEMENT. *LJ
SB-16-001-142014-12-16. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT. DODGE: ON CERTAIN TRUCKS, WHEN AT SPEEDS BETWEEN 50 MPH (80 KPH) AND 75 MPH (120 KPH), FROM THE REAR OF TRUCK, VIBRATION CAN BE FELT. MODEL 2014 RAM 1500, RAM, WRANGLER. *PE

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