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Service bulletins for the 2019 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
S23230000022023-02-13. Service bulletin. EQUIPMENT:ELECTRICAL. Washer Light On And Will Not Turn Off After Adding Washer Solvent.
21020222023-01-23. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Transmission Control Module (TCM) Updates
08214222023-01-23. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; ELECTRICAL SYSTEM. Radio Over The Air Updates to JR34.3/JR34.4 and JR34.41
08095222023-01-17. Service bulletin. ELECTRICAL SYSTEM. UAX And UCX KR20.12 To PR40.1 Software Version Updates
21020222023-01-17. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. The customer may notice one or more of the following: When decelerating from a 1 to 2 gear shift, the vehicle may have a harshshift. From a 1 to 2 gear change there may be a perceived bump feeling, whilehaving a light pedal(Sales Codes ETL and ETN Only). A harsh shift from a 2 to 3 gear shift while at almost or wide openthrottle. A harsh shift from a 3 to 4 shift and heavy on the pedal, lifting offthe pedal, then back on the pedal again. While coasting down a grade, an abrupt deceleration may be felt. A clunk heard when shifting from park to reverse or drive. Cold engine flare during a shift. A delay when coasting down, vehicle is in a downshift at low speedsand then trying to accelerate. (The vehicle will have a hesitation as the vehicle tries to change gears to accommodate the new pedaldemand). Excessive shifting(DD and DP Only). Engine flare caused by the transmission releasing the clutch too early duringa 1 to 2 shift. Poor shift quality. Shift or gear hunting. A harsh 2-1 shift. Hesitation in up-shifts and/or down-shifts. Shudder and/or clunk when shifting into gear. The following software enhancements are available:Stored faults can only be cleared by a diagnostic scan tool, this softwarewill allow the TCM to self clear. 2-1 coast down-shift improvements. 1-2/2-3/3-4/4-5 and 5-6 shift improvements.
08119212023-01-17. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; 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:DT with UAX and UCX - 34.31. All other vehicles and radio combinations - 34.2. The national launch for the FOTA will begin July 21, 2021. Customers may experience one or more of the following: SOS, Automatic SOS (ASOS) , assist calls not showing correct location(DT Vehicles with UAX and UCX Only). GPS inaccuracies(DT Vehicles with UAX or UCX Only). Uconnect radio apps are inoperable(DT Vehicles with UAX or UCX Only). SXM® button are greyed out(DT Vehicles with UAX or UCX Only). Intermittently, SXM loading screen is stuck(DT Vehicles with UAX or UCX Only). 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.
S20180000072023-01-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics
S21090000062023-01-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS. Oil Leak From The Oil Pan Gasket.
S21180000122023-01-17. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0607 ? ECU Internal Performance, Set.
S21080000912023-01-17. Service bulletin. ELECTRICAL SYSTEM. When The PTO Is Engaged, The Engine RPM Will Surge And Cannot Increase above 1100 RPM. Diagnostic Trouble Codes (DTCs) P061B ? Internal Control Module Torque Performance, And/Or P064B ? PTO Control Module, Set.
S21230000552023-01-17. Service bulletin. ENGINE; SERVICE BRAKES. HD Truck Brake Pedal Feel On Gas Engine Equipped
S20250000072023-01-17. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P218F ? Reductant No Flow Detected set.
S21080001702023-01-17. Service bulletin. PARKING BRAKE. Head unit button stuck DTC code B14DA-2A
S21080001692023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Display Abnormality
S17230000012023-01-17. Service bulletin. VISIBILITY. Left Hand Drivers Side Mirror Takes Longer to Defrost Or Clear Than Right Side Passenger
S21080001632023-01-17. Service bulletin. ELECTRICAL SYSTEM. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
S21090000042023-01-17. Service bulletin. ENGINE AND ENGINE COOLING. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
S21210000102023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL; POWER TRAIN. Service 4WD Lamp On, 4WD System Does Not Work, 4WD Service Lamp Flashing, Front Axle Disconnect Does Not Engage Or Disengage
749122023-01-17. Service bulletin. FUEL SYSTEM, GASOLINE. Fast Feedback Program - 6.7L Cummins Engine - 2019 - 2022 HD Ram & Fuel Injection Pump - All Models (Rev. G)
S2108000127-12023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Reboot Continually
S21210000102023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL. Service 4WD Lamp On, 4WD System Does Not Work, 4WD Service Lamp Flashing, Front Axle Disconnect Does Not Engage Or Disengage
S21080001272023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Reboot Continually
S21080001262023-01-17. Service bulletin. ELECTRICAL SYSTEM. Camera Image Flickering While Activating Side Steps Or Changing Passenger Seat Position
S21080001202023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL. Radio Volume Uncontrollable Or Changing On Its Own
S20180000072023-01-17. Service bulletin. ENGINE AND ENGINE COOLING. Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics

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