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Service bulletins for the 2016 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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
05013152022-08-22. Service bulletin. PARKING BRAKE:ELECTRICAL:CONTROL MODULE:SOFTWARE; SEAT BELTS; ELECTRICAL SYSTEM. Anti Lock Brake (ABS) Module System Enhancements.
18-015-17 REV. A2022-08-08. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; BACK OVER PREVENTION; SERVICE BRAKES, HYDRAULIC. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The following Diagnostic Trouble Codes (DTCs) have been changed from a one trip fault to a two trip fault: P0421 - Catalyst 1 Efficiency Below Threshold Bank 1. P2280 - Air Flow Restriction / Leak Between Air Cleaner And MAF. P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low. P208D - (Diesel Exhaust Fluid) Reductant Pump Control Circuit High.A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find the following DTCs set in the PCM memory: P1451 - Diesel Particulate Filter System Performance. P229E - NOx Sensor Circuit - Bank 1 Sensor 2. P0128 - Thermostat Rationality Improvements. P2281 - Air Leak Between MAF and Throttle Body. P218F - Reductant No Flow Detected. P0218 - Transmission High Temperature Operation Activated (68RFE Only). P0868 - Line Pressure Low, MIL Action (68RFE Only). U110E - Lost Ambient Temperature Message. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in).In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release: Improvement to correct engine feels like low or reduced power. Engine Noise Improvements. Engine Hesitation Improvement. Improved Engine Fuel Economy. Reduction in engine noise during regeneration at idle. 68RFE Transmission Overall Shift Quality Improvements. Test results fix for partial range misfire (68RFE Only). Ambient Air Temperature Improvements. Stationary Desoot with wiTECH Fix. OBD Misfire Monitoring Improvement (68RFE Only).
90030592022-08-08. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Park Assist Sensor 1) Active or Stored DTC of Signal Shape / Waveform Failure fault: B128E-25, B128F-25, B1290-25, B1291-25, B1292-25, B1293-25, B1295-25, B1296-25, B1297-25, and/or B1298-25, check for snow/mud/ice/obstruction and clean the Sensors, both front and back (behind bumper) of sensor. The snow/mud/ice can be behind the bumper, sensor retainer and/or the sensor which may cause customers to think they have an issue since they cleaned the front of the sensor/bumper, but not behind where dirt/mud/ice snow can accumulate. Once the Bumper and Sensors are completely cleaned and clear of snow, mud, ice, and/or obstruction, the sensors must activate in order for the faults to go STORED. After cleaning the Bumper and Sensors, turn off the engine, wait 10 seconds, turn on the engine and then place the vehicle in REVERSE so that the sensors activate. The faults will go STORED. 2) Active or Stored DTC code of Short to Ground fault: B128E-11, B128F-11, B1290-11, B1291-11, B1292-11, B1293-11, B1294-11, B1295-11, B1296-11, and/or B1298-11, or if you have an active or stored DTC code of Performance or Incorrect Operation fault: B128E-92, B128F-92, B1290-92, B1291-92, B1293-92, B1294-92, B1295-92, B1296-92, B1297-92, and/or B1298-92, then check the wiring behind the sensor. Specifically, ensure that the connector behind the park assist sensor is fully mounted. Ensure also, there is no dirt, corrosion, or damage in this connector behind the park assist sensor as this will also cause a Short to Ground fault. With potential wiring issues addressed, the sensors must activate in order for the faults to go STORED. After all sensors are properly connected (you will likely hear a click once the connector is fully seated on the sensor), turn off the engine, wait 10 seconds, turn on the engine and then place the vehicle in REVERSE so that the sensors activate. The faults will go STORED.
18-092-172022-08-08. Service bulletin. SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM; POWER TRAIN; EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); FUEL SYSTEM, GASOLINE. Flash: 6.7L Diagnostic and System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The following Diagnostic Trouble Codes (DTCs) have been changed from a one trip fault to a two trip fault:P2280 - Air Flow Restriction / Leak Between Air Cleaner and MAF. P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low. P208D - (Diesel Exhaust Fluid) Reductant Pump Control Circuit High. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find the following DTCs set in the PCM memory:P218F - Reductant No Flow Detected(automatic transmission only). P202E - (Diesel Exhaust Fluid) Reductant Injector Performance(automatic transmission only). U0001-00 - CAN C BUS(automatic transmission only). P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1(automatic transmission only). P24A5 - EGR Cooler Bypass Bank 1 Control Stuck(automatic transmission only). P207F - Reductant Quality Performance. P218F - Reductant No Flow Detected. U110E - Lost Ambient Temperature Message. The following improvements/enhancements are also included in this software release:Fuel pressure override test improvement for wiTECH(automatic transmission only). AC pressure sensor error threshold change(automatic transmission only). No crank, No start fix(automatic transmission only). Ambient Air Temperature Improvements. Stationary de-soot with WiTECH fix.
90035852022-08-08. Service bulletin. ELECTRICAL SYSTEM. Intake Grid Heater, Grid Heater Relay 2012 - 2016 6.7L Cummins engines with Intake Heater issues or DTC P2609 and P0542, please replace the Intake Heater Grid and Relay as a set. 68210071A$ (heater grid) and 05187880A$ (relay). Inspect electrical cable between the heater grid and relay for signs of possible overheating. Replace cable as necessary.
18-092-172022-07-25. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN; POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT. Flash: 6.7L Diagnostic and System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The following Diagnostic Trouble Codes (DTCs) have been changed from a one trip fault to a two trip fault:P2280 - Air Flow Restriction / Leak Between Air Cleaner and MAF. P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low. P208D - (Diesel Exhaust Fluid) Reductant Pump Control Circuit High. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find the following DTCs set in the PCM memory:P218F - Reductant No Flow Detected(automatic transmission only). P202E - (Diesel Exhaust Fluid) Reductant Injector Performance(automatic transmission only). U0001-00 - CAN C BUS(automatic transmission only). P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1(automatic transmission only). P24A5 - EGR Cooler Bypass Bank 1 Control Stuck(automatic transmission only). P207F - Reductant Quality Performance. P218F - Reductant No Flow Detected. U110E - Lost Ambient Temperature Message. The following improvements/enhancements are also included in this software release:Fuel pressure override test improvement for wiTECH(automatic transmission only). AC pressure sensor error threshold change(automatic transmission only). No crank, No start fix(automatic transmission only). Ambient Air Temperature Improvements. Stationary de-soot with WiTECH fix.
90035852022-07-25. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE; ELECTRICAL SYSTEM. Intake Grid Heater, Grid Heater Relay 2012 - 2016 6.7L Cummins engines with Intake Heater issues or DTC P2609 and P0542, please replace the Intake Heater Grid and Relay as a set. 68210071A$ (heater grid) and 05187880A$ (relay). Inspect electrical cable between the heater grid and relay for signs of possible overheating. Replace cable as necessary.
18-072-152022-07-25. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/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 the following Diagnostic Trouble Codes (DTCs) set in the PCM memory. ? U110E-Lost Ambient Temperature Message ? P205E-(Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in) In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release. ? 68RFE Transmission Overall Shift Quality Improvements ? OBD Misfire Monitoring Improvement (68RFE Trans Only)
18080152022-07-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest
18027162022-07-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Diagnostic And System Improvements.
1802716 REV A2022-07-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Diagnostic And System Improvements.
90044702022-06-27. Service bulletin. ELECTRICAL SYSTEM:WIRING; TRAILER HITCHES. CONNECTOR/WIRING, Trailer Tow If the connector or wiring is physically damaged, burned, melted or corroded, prior to replacing the part, please contact FCA Redacted Content If no response in 15 minutes, proceed with repair. Please send pictures of the failed part to FCA Redacted Content
68054772A2021-05-03. Service bulletin. ELECTRICAL SYSTEM. Cable assembly. Power sliding backlite.
S1908000028 Rev.2020-12-28. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. (Rev. A) Power Inverter Load Ratings
S1908000028 Rev.2020-12-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. (Rev. A) Power Inverter Load Ratings
08-094-202020-11-30. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); EQUIPMENT. Flash: Drivetrain Control Module (DTCM) Update This bulletin involves reprogramming the DTCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set::If the customer has any concerns with the transfer case or if the tech performs any repairs on the transfer case, the software must be updated.C140E - Transfer Case Motor Blocked. If DTC C140E is present, follow normal diagnostic procedures before updating the DTCM.In addition the customer may describe the following:The ?Service 4WD? message/fault is displayed in the Instrument Panel Cluster (IPC). Transfer case shift fork tabs broken during range shift. Noisy (clunking/ratcheting) transfer case range shifts. Failure to complete transfer case range shifts. The following software enhancement is available:This update will help reduce premature transfer case failure.
18-027-16 REV. B2020-10-26. Service bulletin. POWER TRAIN; FUEL SYSTEM, DIESEL; ENGINE; ELECTRICAL SYSTEM:SOFTWARE. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The following DTCs have been changed from a one trip fault to a two trip fault: · P0421 - Catalyst 1 Efficiency Below Threshold Bank 1. · P2280 - Air Flow Restriction / Leak Between Air Cleaner And MAF. · P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low. · P208D - (Diesel Exhaust Fluid) Reductant Pump Control Circuit High. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find the following DTCs set in the PCM memory: · **P0128 - Thermostat Rationality Improvements.** · P2281 - Air Leak Between MAF and Throttle Body. · P218F - Reductant No Flow Detected. · P0218 - Transmission High Temperature Operation Activated (68RFE Only). · P0868 - Line Pressure Low, MIL Action (68RFE Only). · U110E - Lost Ambient Temperature Message. · P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release: · **Engine Noise Improvements. · Engine Hesitation Improvement. · Improved Engine Fuel Economy.** · Reduction in engine noise during regeneration at idle. · 68RFE Transmission Overall Shift Quality Improvements. · Test results fix for partial range misfire (68RFE Only). · Ambient Air Temperature Improvements. · Stationary Desoot with wiTECH Fix. · OBD Misfire Monitoring Improvement (68RFE Only).
68054772A$2020-10-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. CABLE ASSY, Power Sliding Backlite For MY16 DS, DJ, DD, DP, D2 trucks. Prior to replacing a Power Sliding Backlight Cable Assembly, please contact Marc Galli by cell phone at (248) 941-8402 as he would like to gather information. In addition, if the dealership is within the Metro Detroit Area, Marc would like to analyze the vehicle in person prior to it being repaired. If Marc cannot be contacted within 15 minutes, please provide pictures of the inside lower rail of the glass to confirm (2 passenger side and 1 driver side) cable clips are fully seated as well as pictures of the (2) regulator motor cable spring plungers to confirm they are also seated. Then proceed with the repair. Please email pictures to Marc at marc.galli@fcagroup.com.
S20080001132020-09-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle
S20080000932020-07-27. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING; ELECTRICAL SYSTEM:ADAS:BLINDSPOT:WARNING:LAMP. Blind Spot Or Park Assist Warnings, False Activation
03-001-202020-06-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; SUSPENSION. Rear Axle Vibration, Shudder Or Chatter This bulletin involves changing the rear axle lube to possibly address a chatter, shudder or vibration. The customer may describe the following: A chatter, shudder, or vibration from the rear axle during turns. This may happen more as the vehicle ages, especially if the vehicle is used extensively for towing or hauling heavy loads. The cause of the concern may be due to degradation of the rear axle fluid. It is very important to follow the routine maintenance schedules on these vehicles when it comes to changing the rear axlefluid if the vehicle is used primarily for towing or hauling heavy loads. If you experience a vehicle with the above condition, please perform the proper maintenance procedures for the rear axle and replace the fluid first before replacing any hardware components.This service bulletin is only applicable to vehicles that have no history of an axle fluid replacement. If the vehicle usage includes police, taxi, fleet, off-road or frequent trailer towing, regular axle fluid changes are required every2 years or 20,000 miles (whichever comes first) per the Maintenance Schedule in the vehicle Owner's Manual.
08-049-202020-05-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Charging System, Battery Diagnostic Tools and Warranty This information only bulletin discusses using the correct test equipment for testing batteries and charging systems, and also warranty reimbursement when battery replacements are necessary.
S20210000022020-05-26. Service bulletin. ELECTRICAL SYSTEM. Valve Body Pressure Testing Plug Inspection
90042512020-05-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. RFE Valvebody Plug Installation OEM RFE valve bodies require seven (7) 06030035 plugs installed and torqued to 45 in-lb (5Nm). Notify independant repair facilities when they order valve body.
S15080004802020-04-27. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Speed Control Operates Intermittently

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