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Service bulletins for the 2013 Ram 3500

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.

535 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
14001142023-01-17. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. Fuel Gelling in Cold Ambient Temperatures This bulletin involves reconfiguring the Body Control Module (BCM). Some customers may experience a Malfunction Indicator Lamp (MIL) due to fuel related Diagnostic Trouble Code (DTC) and/or may have a hard or no start condition due to fuel gelling in cold ambient temperatures (20°F or -7°C) or below. DTCs, such as P0087, P0191 or P026B (or other DTCs) may have been set.frame mounted fuel filter heater not to function. The condition is due to a configuration setting in the Body Control Module (BCM).
25001162022-11-21. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL. Diagnosing A Urea Module That Is Exposed To Diesel Fuel This bulletin involves discussing what will happen to the rubber material used in the urea pump when exposed to diesel fuel. This unit is sometimes referred to as the Selective Catalyst Reductant (SCR) module or the Adblue Delivery Module (ADM). Units exposed to hydrocarbons have a particular failure mode, the rubber heater unit is crinkled and in some cases the metal heater protrudes through the rubber membrane. The rubber material used in this unit is designed to withstand Diesel Exhaust Fluid (DEF) only. Exposure to fluids that contain hydrocarbons (i.e. diesel fuel) will damage the unit beyond repair. Units returned that exhibit this failure mode will have warranty claims that are rejected. Units that exhibit this failure mode should be considered customer abuse and should not be covered under warranty. Use the Hydroscopic test paper (P/N 223-44-863) available through MoparEssentialTools.com to confirm exposure.
S22140000032022-11-07. Service bulletin. FUEL SYSTEM, DIESEL. Guidelines For The Use Of Alternative Diesel Fuels.
18-038-162022-10-24. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING. P20EE SCR NOX Catalyst Efficiency Below Threshold Bank 1 This bulletin involves verifying the proper operation of the Diesel Exhaust Fluid (DEF) system and, if necessary, replacing the Selective Catalyst Reduction (SCR) Catalyst assembly. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find Diagnostic Trouble Code (DTC) P20EE SCR NOX Catalyst Efficiency Below Threshold Bank 1 set in the Powertrain Control Module (PCM) memory.
18-091-162022-09-26. Service bulletin. FUEL SYSTEM, DIESEL; BACK OVER PREVENTION; EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); POWER TRAIN. Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set. Several software improvements are available for the following conditions. The Following DTC has been changed from a two trip fault to a one trip fault: · U1A24 - Lost Communication With Ammonia Sensor. Prevent or reduce MIL illumination when no defect is present for the following DTCs. These faults have been changed from a one trip fault to a two trip fault: · P0201 - P0206 - Fuel Injector X Circuit/Open. · P049D - EGR Control Position Exceeding Learning Limit. · P0711 - Transmission Temperature Sensor Performance. · P0712 - Transmission Temperature Sensor Low. · P0713 - Transmission Temperature Sensor High. · P0714 - Transmission Temperature Sensor Intermittent. · P0740 - TCC Out Of Range. · P0869 - Line Pressure High. · P0933 - Hydraulic Pressure Sensor Range/Performance. · P0934 - Line Pressure Sensor Circuit Low. · P0935 - Line Pressure Sensor Circuit High. · P1775 - Solenoid Switch Valve Latched In TCC Position. · P1776 - Solenoid Switch Valve Latched In LR Position. · U0100 - Lost Communication With ECM/PCM. · U0002 - CAN C Bus Off performance - Bus Off. · **P2281 - Air Leak Between MAF And Throttle Body. · P218F - Reductant No Flow Detected. · P242F - Diesel Particulate Filter Restriction - Ash Accumulation. · P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. · P202E - Diesel Exhaust Fluid) Reductant Injector Performance. · P209F - Diesel Exhaust Fluid) Reductant Tank Heater Control Circuit Performance. · P218F - Reductant No Flow Detected.** · P205E - (Diesel Exhaust Fluid) Reductant Tank Temperatur
1803014REVB2022-09-26. Service bulletin. POWER TRAIN; SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; BACK OVER PREVENTION; FUEL SYSTEM, DIESEL. Flash: 6.7L Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo Diesel.Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect is Present For The Following Diagnostic Trouble Codes (DTCs). These Faults Have Been Changed From P0201 - P0206 - Fuel Injector X Circuit/Open. P049D - EGR Control Position Exceeding Learning Limit. P0711 - Transmission Temperature Sensor Performance. P0712 - Transmission Temperature Sensor Low. P0713 - Transmission Temperature Sensor High. P0714 - Transmission Temperature Sensor Intermittent. P0740 - TCC Out Of Range. P0869 - Line Pressure High. P0933 - Hydraulic Pressure Sensor Range/Performance. P0934 - Line Pressure Sensor Circuit Low. P0935 - Line Pressure Sensor Circuit High. P1775 - Solenoid Switch Valve Latched In TCC Position. P1776 - Solenoid Switch Valve Latched In LR Position. U0100 - Lost Communication With ECM/PCM. U0002 - CAN C Bus Off performance - Bus Off. U110E - Lost Ambient Temperature Message.The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault: U1A24 - Lost Communication With Ammonia Sensor.Improvements To Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect Is Present For: U3017 - Control Module Timer/Clock Performance. P026B - Injection Timing Performance. P0128 - Thermostat Rationality. In cold ambient temperatures. P0087 - Fuel Rail Pressure Too Low. P2281 - Air Leak Between MAF and Throttle Body. U1421 - Implausible Ignition Key Off Time Received. P026A - Charge Air Cooler Efficiency Below Threshold. P04DB - Crankcase Ventilation System Disconnected. P0544 - Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1. P0562 - Battery Voltage Low. P0604 - Internal Control Module RAM Error. P1451 - Diesel Particulate Filter
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.
21017192022-09-15. Service bulletin. FUEL SYSTEM, GASOLINE; AIR BAGS; POWER TRAIN; ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; BACK OVER PREVENTION. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the followingDTC has been set:U1111-00 - Lost Odometer Message(DD, DF, and DP with Diesel Engine Only). In addition, the customer may notice one or more of the following conditions: The customer may notice a harsh 2-3 and/or 3-4 shift(2017 MY D2 with ETK 6.7L Diesel and DF2 Transmission Only). 1-2 hard shift. 3-4 flare issue fix. Trans quick learn fix(Gas Engine Only). Transmission oil temperature light illumination during high engine and tow loads. Less than desired towing performance while using cruise control. Harsh engagement while shifting from neutral to drive, neutral to reverse,or park to reverse with vehicle still in motion (rolling garage shift). Engine flare during 2-1 tip in downshift. Less than desired shift quality during 6-5 and 5-4 coasting downshifts. Delayed downshifts in Tow/Haul mode while driving down grades. Less than desired transmission shift performance when transitioning froma low traction to high traction surfaces i.e. ice covered road to clear pavement. Less than desired shift points during light pedal and Wide Open Throttle(WOT) operation or while in Tow/Haul and engine brake modes. 1-2 upshift shudder correction(Diesel engine and DF2 Transmission Only). A harsh 1-2 upshift(DF2 Transmission Only). Excessive gear shifting(DF2 Transmission Only). Harsh 2-1 downshift(DF2 Transmission Only). Delayed engagement when shifting from neutral to drive, neutral to reverse,or park to reverse (garage shifts)(DF2 Transmission Only). Audible squawk noise on 4-3 downshift(DF2 Transmission Only). Poor vehicle acceleration in first gear with vehicle fully loaded(DF2 Transmission Only). MIL illumination with no defect found forDTC P253D - PTO Sense Circuit High(DF2 Transmission Only).
18-030-142022-08-29. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Flash: Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo Diesel. Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Transmission Faults. These Faults Are Currently Tripped As A One Trip Fault And Should Have Been A Two Trip Fault: ? P0201 - P0206 - FUEL INJECTOR X CIRCUIT/OPEN ? P049D - EGR CONTROL POSITION EXCEEDED LEARNING LIMIT ? P0711 - TRANSMISSION TEMPERATURE SENSOR PERFORMANCE ? P0712 - TRANSMISSION TEMPERATURE SENSOR LOW ? P0713 - TRANSMISSION TEMPERATURE SENSOR HIGH ? P0714 - TRANSMISSION TEMPERATURE SENSOR INTERMITTENT ? P0740 - TCC OUT OF RANGE ? P0869 - LINE PRESSURE HIGH ? P0933 - HYDRAULIC PRESSURE SENSOR RANGE/PERFORMANCE ? P0934 - LINE PRESSURE SENSOR CIRCUIT LOW ? P0935 - LINE PRESSURE SENSOR CIRCUIT HIGH ? P1775 - SOLENOID SWITCH VALVE LATCHED IN TCC POSITION ? P1776 - SOLENOID SWITCH VALVE LATCHED IN LR POSITION ? U0100 - LOST COMMUNICATION WITH ECM/PCM ? U0002 - CAN C BUS OFF PERFORMANCE - BUS OFF ? U110E - LOST AMBIENT TEMPERATURE MESSAGE Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: ? P026A - CHARGE AIR COOLER EFFICIENCY BELOW THRESHOLD ? P04DB - CRANKCASE VENTILATION SYSTEM DISCONNECTED ? P0544 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT - BANK 1 SENSOR 1 ? P0562 - BATTERY VOLTAGE LOW ? P0604 - INTERNAL CONTROL MODULE RAM ERROR ? P1451 - DIESEL PARTICULATE FILTER SYSTEM PERFORMANCE ? P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1 (Additional software enhancements to prevent false MIL) ? P202E - (DIESEL EXHAUST FLUID) REDUCTANT INJECTOR PERFORMANCE ? P2201 - AFTERTREATMENT NOx SENSOR CIRCUIT PERFORMANCE - BANK 1 SENSOR 1 ? P2281 - AIR LEAK BETWEEN MAF AND THROTTLE BODY ? P24A5 - EGR COO
18-073-212022-08-22. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. Diesel Injector Freezing This bulletin involves installing a insulator over the Diesel Exhaust Fluid (DEF) injector. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P218F - Reductant No Flow Detected. P202E - (Diesel Exhaust Fluid) Reductant Injector Performance. The customer will not notice any drivability issues associated with these DTCs. These DTCs may set when the vehicles is parked for a long time and the ambient temperatures are below -11 °C (12 °F).
18-062-142022-08-22. Service bulletin. SERVICE BRAKES, HYDRAULIC; POWER TRAIN; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L Turbo Diesel. These improvements are separated into the following categories.Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Diagnostic Trouble Codes (DTCs). These DTCs Are Currently Set As A One Trip Fault And Should Be A Two Trip Fault: P0201 - P0206 - Fuel Injector X Circuit/Open. U110E - Lost Ambient Temperature Message. P049D - EGR Control Position Exceeded Learning Limit.These DTCs Are Currently Set As A Two Trip Fault And Should Have Been A One Trip Fault: U12A4 - LOST COMMUNICATION WITH AMMONIA SENSOR Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil) Illumination For: P2281 - Air Leak Between MAF and Throttle Body. U3017 - Control Module Timer/Clock Performance. U1421 - Implausible Ignition Key Off Time Received. P0128 - Thermostat Rationality. In cold ambient temperatures. P0087 - Fuel Rail Pressure Too Low. P0544 - Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P061A - Level 2 Torque Performance. P0234 - Turbocharger Over boost condition. P026A - Charge Air Cooler Efficiency Below Threshold. P0299 - Manifold Pressure Sensor Out of Range Low. P0544 - Exhaust Gas Temperature (EGT) Sensor Circuit - Bank 1 Sensor 1. P0562 - Battery Voltage Low. P20EE - SCR NOX Catalyst Efficiency Below Threshold - Bank 1. P2201 - Aftertreatment NOX Sensor Circuit Performance - Bank 1 Sensor 1. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P2459 - Diesel Particulate Filter Regeneration Too Frequent. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High.
18-010-142022-08-22. Service bulletin. POWER TRAIN; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. Flash: Doser Control Unit (DCU), Heater Thaw Time Improvements And MIL Illumination This bulletin involves selectively erasing and reprogramming the Doser Control Unit (DCU) with new software. Software improvements are available for the Diesel Exhaust Fluid (DEF) DCU on vehicles equipped with a Cummins 6.7L turbo Diesel. The software contains improvements for the following: Increase in DEF thaw time when ambient and DEF tank temperatures are below -14°C. (7°F.). P208D - (DIESEL EXHAUST FLUID) REDUCTANT PUMP CONTROL CIRCUIT HIGH P202E - (DIESEL EXHAUST FLUID) REDUCTANT INJECTOR PERFORMANCE
18038162022-08-22. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. This bulletin involves verifying the proper operation of the Diesel Exhaust Fluid (DEF) system and,
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
18-078-152022-08-08. Service bulletin. BACK OVER PREVENTION; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L Turbo Diesel. These improvements are separated into the following categories. WARNING:There will be a choice between 2 calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration. Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Diagnostic Trouble Codes (DTCs). These DTCs Are Currently Set As A One Trip Fault And Should Be A Two Trip Fault: ? P0201 - P0206 - Fuel Injector X Circuit/Open. ? P049D - EGR Control Position Exceeded Learning Limit. These DTCs Are Currently Set As A Two Trip Fault And Should Have Been A One Trip Fault: ? U12A4 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil) Illumination For: ? P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). ? U110E - Lost Ambient Temperature Message. ? P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. ? P2281 - Air Leak Between MAF and Throttle Body. ? U3017 - Control Module Timer/Clock Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P0128 - Thermostat Rationality. In cold ambient temperatures. ? P0087 - Fuel Rail Pressure Too Low. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P061A - Level 2 Torque Performance. ? P0234 - Turbocharger Overboost condition. ? P026A - Charge Air Cooler Efficiency Below Threshold. ? P0299 - Manifold Pressure Sensor Out of Range Low. ? P0544 - Exhaust Gas Temperature (EGT
90037792022-07-25. Service bulletin. FUEL SYSTEM, OTHER:FUEL FILTER; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Diesel Particulate Filter (DPF) Assembly For Cummins equipped vehicles ONLY: If a customer comes in with a check engine light for P2002 which has led to replacing the DPF, please contact Dean Armstrong at cell (248) 202-8148. Cummins engineering is currently investigating the root cause to this condition. If you do not receive an answer or call back within 15 minutes, proceed with the repair.
18-078-152022-07-25. Service bulletin. FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC. Flash: 6.7L Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L Turbo Diesel. These improvements are separated into the following categories. WARNING:There will be a choice between 2 calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration. Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Diagnostic Trouble Codes (DTCs). These DTCs Are Currently Set As A One Trip Fault And Should Be A Two Trip Fault: ? P0201 - P0206 - Fuel Injector X Circuit/Open. ? P049D - EGR Control Position Exceeded Learning Limit. These DTCs Are Currently Set As A Two Trip Fault And Should Have Been A One Trip Fault: ? U12A4 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil) Illumination For: ? P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). ? U110E - Lost Ambient Temperature Message. ? P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. ? P2281 - Air Leak Between MAF and Throttle Body. ? U3017 - Control Module Timer/Clock Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P0128 - Thermostat Rationality. In cold ambient temperatures. ? P0087 - Fuel Rail Pressure Too Low. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P061A - Level 2 Torque Performance. ? P0234 - Turbocharger Overboost condition. ? P026A - Charge Air Cooler Efficiency Below Threshold. ? P0299 - Manifold Pressure Sensor Out of Range Low. ? P0544 - Exhaust Gas Temperature (EGT
N190404132022-07-18. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL. Some of the above vehicles equipped with a 6.7L diesel engine may experience a condition where the Noise, Vibration, and Harshness (NVH) engine cover insulates the area on the passenger side of the engine. This could cause engine components under the NVH cover to overheat and possibly ignite.
18038162022-07-05. Service bulletin. FUEL SYSTEM, DIESEL. This bulletin involves verifying the proper operation of the Diesel Exhaust Fluid (DEF) system and,
18-018-13 REV. A2021-03-22. Service bulletin. POWER TRAIN; SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION; EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL; ELECTRICAL SYSTEM. Flash: Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo Diesel. Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Transmission Faults. These Faults Are Currently Tripped As A One Trip Fault And Should Have Been A Two Trip Fault: ? P0711 - TRANSMISSION TEMPERATURE SENSOR PERFORMANCE ? P0712 - TRANSMISSION TEMPERATURE SENSOR LOW ? P0713 - TRANSMISSION TEMPERATURE SENSOR HIGH ? P0714 - TRANSMISSION TEMPERATURE SENSOR INTERMITTENT ? P0740 - TCC OUT OF RANGE ? P0869 - LINE PRESSURE HIGH ? P0933 - HYDRAULIC PRESSURE SENSOR RANGE/PERFORMANCE ? P0934 - LINE PRESSURE SENSOR CIRCUIT LOW ? P0935 - LINE PRESSURE SENSOR CIRCUIT HIGH ? P1775 - SOLENOID SWITCH VALVE LATCHED IN TCC POSITION ? P1776 - SOLENOID SWITCH VALVE LATCHED IN LR POSITION ? U0100 - LOST COMMUNICATION WITH ECM/PCM ? U0002 - CAN C BUS OFF PERFORMANCE - BUS OFF Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: ? P026A - CHARGE AIR COOLER EFFICIENCY BELOW THRESHOLD ? P0544 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT - BANK 1 SENSOR 1 ? P0562 - BATTERY VOLTAGE LOW ? P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1 ? P2201 - AFTERTREATMENT NOx SENSOR CIRCUIT PERFORMANCE - BANK 1 SENSOR 1 ? P2281 - AIR LEAK BETWEEN MAF AND THROTTLE BODY ? P24A5 - EGR COOLER BYPASS BANK 1 CONTROL STUCK ? P2459 - DIESEL PARTICULATE FILTER REGENERATION TOO FREQUENT ? P249E - CLOSED LOOP SCR REDUCTANT INJECTION CONTROL AT LIMIT - FLOW TOO HIGH Other Updates: ? With the ignition in the ?Run? position, engine not running, a small number of customers may experience a message in the Vehicle Information Center that states ?Service Exhaust System - see dealer? erroneously. ? Add engine run time t
N190404132021-03-15. Service bulletin. EQUIPMENT; FUEL SYSTEM, DIESEL. Some of the above vehicles equipped with a 6.7L diesel engine may experience a condition where the Noise, Vibration, and Harshness (NVH) engine cover insulates the area on the passenger side of the engine. This could cause engine components under the NVH cover to overheat and possibly ignite.
S20080001442020-10-26. Service bulletin. FUEL SYSTEM, GASOLINE. External Fuel Pump Relay Kit Now Available
90042992020-10-26. Service bulletin. FUEL SYSTEM, GASOLINE. Intelligent Power Distribution Center If the PDC requires replacement due to a failed internal fuel pump relay, the relay can now be serviced as a separate component. Please use relay replacement KIT part number: 68510768A$.
18-039-202020-05-26. Service bulletin. FUEL SYSTEM, GASOLINE. Possible Driveability Issues due to the Winter-Blend Fuel into the Warmer Season

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