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Service bulletins for the 2020 Ram 4500

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.

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

By type

By component

By trouble code

Bulletins, newest first
S20080000942022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL. Uconnect Market Place APP Fatal Error Message
S20080000932022-10-17. Service bulletin. LANE DEPARTURE: BLIND SPOT DETECTION. Blind Spot Or Park Assist Warnings, False Activation
S20080000892022-10-17. Service bulletin. ELECTRICAL SYSTEM. SGW (Security Gateway Module) Setting DTC B235A-00 ECU In-Plant- Mode
S20180000082022-10-17. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Engine Surge Feel and/or Diagnostic Trouble Code P0299 ? Turbo Underboost Condition After Updating The Powertrain Control Module (PCM) Software. (ETL, ETM, ETN Engines)
S19080000472022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Volume Uncontrollable Or Stuck On High
S19080001742022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Screen Black At Vehicle Startup After A Sleep Cycle
S20210000032022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. Check Engine Light Is On, Vehicle Speed May Be Limited, Shifting May Be Erratic
Y172022-10-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN. Customer Satisfaction Notification Y17 Transmission Software Update
749122022-10-17. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE. Fast Feedback Program - 6.7L Cummins Engine - 2019 - 2022 HD Ram & Fuel Injection Pump - All Models (Rev. G)
S2108000127RevA2022-10-17. Service bulletin. UNKNOWN OR OTHER. Radio Reboot Continually
S21210000102022-10-17. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Service 4WD Lamp On, 4WD System Does Not Work, 4WD Service Lamp Flashing, Front Axle Disconnect Does Not Engage Or Disengage
S21080001272022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Reboot Continually
S21080001202022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Volume Uncontrollable Or Changing On Its Own
S20180000072022-10-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics
S21080000912022-10-17. Service bulletin. ELECTRICAL SYSTEM. When The PTO Is Engaged, Engine RPM Will Not Exceed 1100 RPM And The Engine Surges. Diagnostic Trouble Codes (DTCs) P061B ? Internal Control Module Torque Performance, And/Or P064B ? PTO Control Module, Set.
S21080000982022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Screen Freeze, Blank Screen And Reset
S21210000092022-10-17. Service bulletin. POWER TRAIN. Rapid Shifts, High RPMs, 40-50 mph (65-80 kph) Max Speed, Inability to Perform Transmission Quick learn.
9004374RevA2022-10-17. Service bulletin. WHEELS. NUT, Wheel Flange Wheel Nut Service Torque should be 175 N-M.
90043742022-10-17. Service bulletin. WHEELS. NUT, Wheel Flange Wheel Nut Service Torque should be 190 N-M.
08072212022-10-17. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. Flash: Driver Door Module (DDM) and Passenger Door Module (PDM) Updates This bulletin involves reprogramming the DDM and PDM with the latest available software. This software is for vehicles on the RRT VIN List is to improve the function and reliability of the power windows operation.
Y172022-10-17. Service bulletin. POWER TRAIN. Customer Satisfaction Notification Y17 Transmission Software Update
749122022-10-17. Service bulletin. FUEL SYSTEM, GASOLINE. Fast Feedback Program - 6.7L Cummins Engine - 2019 - 2022 HD Ram & Fuel Injection Pump - All Models (Rev. G)
S2108000127REVA2022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Reboot Continually
S21210000102022-10-17. Service bulletin. BACK OVER PREVENTION. Service 4WD Lamp On, 4WD System Does Not Work, 4WD Service Lamp Flashing, Front Axle Disconnect Does Not Engage Or Disengage
S21080001272022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Reboot Continually

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