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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.

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

Bulletins, newest first
S20080001862020-12-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Engine Control Module (ECM) Flash Failure, Diagnostic Trouble Code (DTC) U1601 ? ECU Application Software Code 1 Missing Or Corrupted
S20080001722020-12-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Screen Flickering When Using Apple CarPlay Or Android Auto.
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.
S1923000047 Rev.2020-11-30. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE. P1D73 AGS (Active Grille Shutter Performance), Malfunction Indicator Lamp (MIL) Illuminated
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.
S20250000072020-10-26. Service bulletin. ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P218F ? Reductant No Flow Detected set.
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.
S20080001302020-09-28. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Radio UConnect GPS Based Trip Computer Missing
S20080001142020-09-28. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. SXM Is Inoperative, Button Grayed Out Or Stuck In Loading Screen
S20080001132020-09-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle
90042762020-09-28. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; ENGINE. PUMP, Fuel Injection This part requires a unique calibration to be programmed into the Engine Control Module (ECM). Failure to program the ECM with the correct calibration after installation of this pump will create an undesireable noise characteristic from the pump. Please be sure to follow all normally published Service Bulletins, and Service Information for the latest installation instructions, and programming steps.
S20080000942020-08-24. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Uconnect Market Place APP Fatal Error Message
S20080000102020-08-24. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
08-061-202020-07-27. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE; ELECTRICAL SYSTEM:SOFTWARE. Flash: Anti-lock Brake System (ABS) Enhancements This bulletin involves reprogramming the ABS module with the latest software available. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set:C006A-49 - Multi-Axis Acceleration Sensor - Internal Electronic Failure.
D-19-02 Rev. E2020-07-27. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. Fast Feedback Program - 6.7L Cummins Engine - 2019 & 2020 HD Ram & 6.7L Cummins Diesel Engine Control Module (ECM) - 2018 Ram- All Models (Rev. E)
S20080000942020-07-27. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Uconnect Market Place APP Fatal Error Message
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
S19080000972020-07-27. Service bulletin. ELECTRICAL SYSTEM. Radio Screen Black Or Blank
S19050000082020-07-27. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL. ABS Active DTC C006A-49 Multi-axis Acceleration Sensor-Internal Electronic Failure
S20210000032020-07-27. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Check Engine Light Is On, Vehicle Speed May Be Limited, Shifting May Be Erratic
09-003-20 REV. C2020-06-22. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Inspect Throttle Body Assembly This bulletin involves inspecting the Julian date on the throttle body and possibly replacing it. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set:P2100 - Electronic Throttle Control Motor Circuit/Open - Bank 1. The customer may also describe the vehicle is in limp home mode.
S20080000732020-06-22. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. VP4 Panasonic Radio USB Software Update Error Codes And Guidelines For Recovery
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.

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