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Service bulletins for the 2020 Ram 2500

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
688512020-11-30. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Safety Recall W44 Bed Step Updated Dealer Instructions
S1918000003 Rev.2020-11-30. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; ENGINE. Revision A: Intermittent Engine Buck, Surge, or Misfire.
S20100000012020-11-30. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Customer complaint of air bag lamp on. B0029-11-RIGHT CURTAIN DEPLOYMENT SQUIB 1-CIRCUIT SHORT TO GROUND
S20080001512020-11-30. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR. Outside Air Temperature Displayed On Cluster Or Radio Are Inaccurate
08-088-202020-10-26. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Squeak, Rattle, Or Metallic Tapping Sound From Under The Instrument Panel This bulletin involves Inspecting and replacing the AMP bracket fastener. The customer may describe one or both of the following:A bolt may have been found in the driver foot well. A squeak, rattle or metallic tapping sound from under the instrumentpanel (this is due to amp bracket being loose and hitting against the IP Cross Car Beam). They may mention noise worsens during whentraveling on rough/bumpy roads.
08-048-20 REV. A2020-10-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. UAX, UCX, UAV and UCV Radio Over the Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated to 34.2. Customers may experience one or more of the following:Uconnect App inoperative(DT Vehicles Only). Voice Recognition (VR) inoperative(DT Vehicles Only). Radio resets (DT Vehicles Only). Radio locks up, freezes or resets. Bluetooth device is slow to pair, or does not pair. GPS unable to load and find locations. Loss of saved radio presets. Display screen is back with no backlighting. No audio output coming from the radio. Cannot control audio volume. Rear view camera display will not turn off.
S2024000003 Rev.2020-10-26. Service bulletin. STRUCTURE; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. (Revision B) Customer Indicates A Whistle Noise Is Coming From The Dash During Certain Driving Conditions And HVAC Settings
S20140000022020-10-26. Service bulletin. FUEL/PROPULSION SYSTEM. Metal Or Other Debris Contamination In The High Pressure Fuel System. Parts Ordering, And Repair Process Information.
S2008000120 Rev.2020-10-26. Service bulletin. ELECTRICAL SYSTEM. (Revision A) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0461 ? Fuel Level Sensor 1 Performance Set
S20080001442020-10-26. Service bulletin. FUEL SYSTEM, GASOLINE. External Fuel Pump Relay Kit Now Available
S20080001412020-10-26. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Navigation Shows Incorrect Location
S20230000382020-10-26. Service bulletin. STRUCTURE. Rattle, Clunk, Chuckle Noise From C Pillar Of Crew And Mega Cab
S20080001402020-10-26. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; SERVICE BRAKES, HYDRAULIC. Antilock Brake System (ABS) Lamp On, Rear Wheel Sensor DTC?s Present
S1908000022 Rev.2020-10-26. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). (Revision A) Navigation Search Feature Does Not Work
S20250000072020-10-26. Service bulletin. ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P218F ? Reductant No Flow Detected set.
S2018000007 Rev.2020-10-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE. (Revision A) Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics
S2024000003 Rev.2020-10-26. Service bulletin. STRUCTURE. (Revision A) Customer Indicates A Whistle Noise From Dash During Certain Driving Parameters.
90042982020-10-26. Service bulletin. ENGINE; EQUIPMENT. Intake Manifold, Intake Manifold Gaskets, Intake Manifold Bolts If the intake manifold is being removed for service and the vehicle build date is between 02/24/20 to 08/07/20, please inspect the intake manifold for cracks around the intake manifold mounting bolt holes. If cracks are found please replace the intake manifold and intake manifold mounting bolts with P/N 06510314AA or later, torquing the bolts to specification when installing. If no cracks are found around the mounting holes, the intake manifold is OK to re-install during re-assembly using NEW mounting bolts p/n 06510314AA or later and torquing to specification.
18-060-202020-09-28. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; ENGINE. 6.7L Cummins Engine High Pressure Fuel Injection Pump Identification Differences This bulletin provides information regarding the identification differences in the high pressure fuel injection pumps between the new style Symetrical Cam design pump and the old syle Asymetrical Cam design used on the 6.7L Cummins in the 2019 and 2020 HD Trucks. The following information is intended to eliminate confusion and possible noise complaints shortly after pump replacement or ECM reprogramming.
08-073-202020-09-28. Service bulletin. ELECTRICAL SYSTEM; SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM. Flash: Air Suspension Control Module (ASCM) Updates This bulletin involves reprogramming the ASCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: U0132 - Loss of Communication with Air Suspension Control Module. C15E1-97 - Left Rear Air Spring Intake - Component or System Operation Obstructedor Blocked. C220C-48 - Active Suspension Module Internal-Supervision Software Failure(2019 MY Only). C211B-92 - Ignition Run/Start Input-Performance Or Incorrect Operation(2019 MY Only). C156C-7A - Ride Height System Air Leak-Fluid Leak Or Seal Failure(2019 MY Only). In addition the customer may describe: Air spring deflated or ruptured. Right/left rear suspensions sits lower than the other side. During key ?On? or while driving, the ?service air suspension?light illuminates. Chime and "Service Air Suspension Immediately" message appeared in the clusterfor 5 seconds. Air suspension system is inoperable. Excessive operation or noise from air suspension system when vehicle is stationary(2019 MY Only). "Air Suspension Disabled" message when attempting Bed Lowering Mode (BLM)(2019 MY Only). Excessive compressor valve cycling following a cold start(2019 MY with Diesel engine only). Erroneous "Bed Low Achieved" message through the Instrument Panel Cluster (IPC), when requesting lowering, even though the truck didn'tphysically lower. Ride height changes/valve actuations without operator request on rough roads.
18-048-20 REV. A2020-09-28. Service bulletin. FUEL SYSTEM, DIESEL; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; ENGINE. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. 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:P1D7300 - AGS Performance. P0299-00 - Turbocharger Underboost. P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. P1451-00 - Diesel Particulate Filter System Performance. P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation. P24A5-00 - EGR Cooler Bypass Bank 1 Control Stuck(Sales Code ETM). P20EE-00 - NOx Catalyst Efficiency Below Threshold(Sales Code ETM). P0420-00 - Catalyst System Efficiency Below Threshold Bank 1(Sales Code ETM). P2002-00 - Diesel Particulate Filter Efficiency Below Threshold(Sales Code ETM). P0191-00 - Fuel Rail Pressure Sensor Circuit Performance(Sales Code ETM). P0461-00 - Fuel Level Sensor 1 Performance(Sales Code ETM). P0401-00 - EGR System Performance(Sales Code ETM). P208B-00 - Reductant Pump 1 Control Performance(Sales Code ETM). The customer may also notice one or more of the following:Engine surge felt while driving(Sales Code ETM). Idle Fluctuation. The following improvements are also included in this update:wiTECH ?Fuel Injector Cutoff Test? fix. wiTECH Mass Air Flow (MAF) Sensor data display additional fix. Enabling wiTECH Particulate Matter (PM) Sensor Regeneration Test in PCM ?Misc Functions?. Engine Warmup Protection Improvement to help promote better oil delivery to engine bearings during cold starts. Hydrocarbon Desorption (HCD) Mode operational improvement. HCD mode resumes after key cycle. Engine stumble improvement, during engine warm up(Sales Code ETM). Smoke improvement during highway driving and lower altitudes (sea level)(Sales Code ETM).
W18 Combo2020-09-28. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:MECHANICAL; STRUCTURE:FRAME AND MEMBERS. Customer Satisfaction Notification W18 Front Tow Hooks
W39 Combo2020-09-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE:FRAME AND MEMBERS. Customer Satisfaction Notification W39 Bed Step
W51 Combo2020-09-28. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; STEERING. Customer Satisfaction Notification W51 Steering Gear
S20080001302020-09-28. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Radio UConnect GPS Based Trip Computer Missing

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