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Service bulletins for the 2015 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.

590 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
68056356A2022-08-08. Service bulletin. EQUIPMENT; 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.
18018162022-07-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Powertrain Diagnostic And System Enhancements.
1800215 REV A2022-07-05. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated
S2008000113 Rev.2021-05-24. Service bulletin. POWER TRAIN. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle, Intermittent Key Not Detected Message
21-028-152021-05-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 8HP70 Tranmission shift enhancements.
S2008000081 Rev.2021-03-01. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM; POWER TRAIN. Cruise Control Inoperative.
S2025000001 Rev.2020-12-28. Service bulletin. EXTERIOR LIGHTING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT. (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
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.
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.
21-064-152019-05-20. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: 8HP70 Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. The purpose of this software release is to enable the capability to capture non Diagnostic Trouble Code (DTC) control module data through the Uconnect Data Recording system. In addition, the following improvements are available. 2015 WK ? Improved upshift timing in eco, base, and hill modes and while using cruise. ? Improved 8-7, 3-2, and 2-1 downshift timing. ? Improved shift timing at higher altitudes. ? Improved torque converter engagement. 2015 DS ? Improved 7th gear upshift timing.
18-019-15 REVA2018-12-10. Service bulletin. SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM; POWER TRAIN. Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one of more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory. ? P204F-00 Reductant System Performance. ? P20E9-00 Reductant Pressure Too High. ? P249C-00 Excessive Time To Enter Closed Loop Reductant Injection Control. ? P2002-00 Diesel Particulate Filter Efficiency Below Threshold. ? P20C2-00 Reductant Heater 3 Control Circuit Performance. ? P2299-00- Brake Pedal Position/Accelerator Pedal Position Incompatible. ? P208B-00 Reductant Pump 1 Control Performance. ? P1288-00 Nox Sensor 1/2 Zero Offset Too High. ? P016A-00 - Excessive Time To Enter Closed Loop Air/Fuel Ratio Control. In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release. ? Enhancements to improve A/C compressor relay duty cycle operation to prevent ignition off battery draw. ? Powertrain system improvements to enable EGR cleaning routine.
21-025-152018-12-10. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Flash: 854RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customer may experience one or more of the following. ? Malfunction Indicator Lamp (MIL) illumination with Diagnostic Trouble Code (DTC) P0734 - Gear 4 Shift Incorrect Ratio set in the TCM memory. ? Bump sensation felt during engine start/stop transition on light throttle acceleration (Engine Stop Start (ESS) equipped vehicles only). ? Less than desired overall downshifts during normal driving. ? Less than desired downshifts during passing maneuvers. ? Less than desired upshift quality in lower gears.
21-037-15 REVA2018-12-03. Service bulletin. POWER TRAIN. Transmission Heater Assembly Reinforcement Plate This bulletin involves verifying the Transmission Heater Assembly build date and if necessary, replacing the Transmission Heater. A small number of customers may notice the presence of transmission fluid in the engine coolant.
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.
18-019-15 REV-B2018-11-26. Service bulletin. POWER TRAIN. Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one of more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory. ? P2196-00 ? O2 Sensor 1/1 Stuck Rich. ? P1E0C-00 ? Empty Fuel Tank. ? P2237-00 ? O2 Sensor 1/1 Pump Cell Current Circuit Open. ? P1297-00 ? EGR Slow Response - Decreasing Flow. ? P0420-00 ? Catalyst Efficiency (Bank 1). ? P24AF-00 ? Particulate Matter Sensor Circuit Performance. ? P26AB ? Engine Coolant Bypass Valve Stuck. ? P204F-00 ? Reductant System Performance. ? P20E9-00 ? Reductant Pressure Too High. ? P249C-00 ? Excessive Time To Enter Closed Loop Reductant Injection Control. ? P2002-00 ? Diesel Particulate Filter Efficiency Below Threshold. ? P20C2-00 ? Reductant Heater 3 Control Circuit Performance. ? P2299-00 ? Brake Pedal Position/Accelerator Pedal Position Incompatible. ? P208B-00 ? Reductant Pump 1 Control Performance. ? P1288-00 ? Nox Sensor 1/2 Zero Offset Too High. ? P016A-00 ? Excessive Time To Enter Closed Loop Air/Fuel Ratio Control. In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release. ? Enhancements to improve A/C compressor relay duty cycle operation to prevent ignition off battery draw. ? Powertrain system improvements to enable EGR cleaning routine.
21-025-15 REV-A2018-11-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. Flash: 854RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following Symptom/Condition(s) and/or a Malfunction Indicator Lamp (MIL) due to an erroneous Diagnostic Trouble Code (DTC): ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio set in the TCM memory. ? Bump sensation felt during engine start/stop transition on light throttle acceleration (Engine Stop Start (ESS) equipped vehicles only). ? Less than desired overall downshifts during normal driving. ? Less than desired downshifts during passing maneuvers. ? Less than desired upshift quality in lower gears.
21-037-152018-11-26. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); POWER TRAIN:AUTOMATIC TRANSMISSION. Transmission Heater Assembly Reinforcement Plate This bulletin involves verifying the Transmission Heater Assembly build date and if necessary, replacing the Transmission Heater. A small number of customers may notice the presence of transmission fluid in the engine coolant.
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.
21-014-152018-09-24. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Flash: 8HP70 Transmission Shift Quality And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software A small number of customers may experience one or more of the following conditions. ? Bump sensation during tip-in acceleration between 5-10 mph (8-16 kph). ? Less than desired transmission performance during Torque Converter Clutch (TCC) lockup. ? Less than desired transmission performance in Tow/Haul mode. ? Less than desired transmission performance during coast down deceleration at higher altitudes. ? Bump sensation during 6-5 downshift. ? Bump sensation during 1-2 upshift.

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