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Service bulletins for the 2020 Ram 5500

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.

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

By type

By component

By trouble code

Only bulletins with component: Lighting are shown. Show all

Bulletins, newest first
18008242024-03-18. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT; PARKING BRAKE; BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; POWER TRAIN; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0506-00 - Idle Control System RPM - Lower Than Expected.P0607-00 - ECU Internal Performance. P20E8-00 - Reductant Pressure Too Low. P0301-00 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P0299-00 - Turbocharger Underboost. P1D73-00 - AGS Performance. P0626 - Generator Field Control Circuit High. P218F - Reductant No Flow Detected. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P0191 - Fuel Rail Pressure Sensor Circuit Performance. P0461 - Fuel Level Sensor 1 Performance. P0401 - EGR System Performance. P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. P061A - Level 2 Torque Performance. P061B - Internal Control Module Torque Calculation Performance. P061E - Internal Control Module Brake Signal Performance. P062C - ETC Level 2 MPH Performance. P0106 - Manifold Absolute Pressure Sensor Performance (In extreme cold ambient temperatures). P0116 - Engine Coolant Temperature Sensor Performance. P0420 - Catalyst System Efficiency Bank 1. P1507 - Crankcase Filter Restriction. P203F - Reductant Level Too Low. P226C - Turbocharger Boost Control ?A? Slow Response (In extreme cold ambient temperatures). P2579 - Turbocharger Speed Sensor Circuit. U0101 - Lost Communication with TCM. U02A3 - Lost of Communication with PM Sensor. U3017 - Control Module Timer/Clock Performance. Customers may also experience one or more of the following Power
18068232023-07-31. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN; EXTERIOR LIGHTING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Powertrain Control Module (PCM) Updates 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: ? P1404 - EGR Position Sensor Rationality Closed. ? P2457 - Exhaust Gas Recirculation Cooling System Performance. NOTE: P1404 - EGR Position Sensor Rationality Closed DTC can be erroneously set when P2457 -Exhaust Gas Recirculation Cooling System Performance DTC is set. In addition, the customer may notice one or more of the following conditions: ? **Power Take Off (PTO) disable to high engine oil temperature (DD DP with DF3 Only).** ? In PTO mode, transmission gear engagement is abrupt and idle speed is high when transitioning From Park To Drive/Reverse Gear. This bulletin involves reprogramming the PCM with the latest available software.
S21180000122023-01-17. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0607 ? ECU Internal Performance, Set.
S20250000072023-01-17. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P218F ? Reductant No Flow Detected set.
18088222022-12-19. Service bulletin. BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; POWER TRAIN; ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs have been set: P1404 - EGR Position Sensor Rationality Closed. P2457 - Exhaust Gas Recirculation Cooling System Performance. P1404 - EGR Position Sensor Rationality Closed DTC can be erroneously set when P2457 - Exhaust Gas Recirculation Cooling System Performance DTC is set.In addition, customers may experience one or more of the following concerns: In Power Take-Off (PTO) mode, transmission gear engagement is abruptand idle speed is high when transitioning From Park To Drive/Reverse Gear.
22001222022-12-19. Service bulletin. BACK OVER PREVENTION; LANE DEPARTURE; SERVICE BRAKES, HYDRAULIC; EXTERIOR LIGHTING. TPMS Does Not Read Tire Pressure For The Rear Tires This bulletin involves adding a sales code and performing a restore vehicle configuration. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find thefollowing Diagnostic Trouble Code (DTC) has been set: C15CE-31 - Tire Pressure Sensor 7-No Signal. Customers may also comment on the following: Instrument Panel Cluster (IPC) warning is illuminated for the tire pressure sensors.
S21180000122022-09-26. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0607 ? ECU Internal Performance, Set.
S20250000072022-09-26. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P218F ? Reductant No Flow Detected set.
S1625000007RevA2022-09-26. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P207F ? Reductant Quality Performance Set.

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