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Service bulletins for the 2023 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.

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

By type

By component

By trouble code

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

Bulletins, newest first
18-023-262026-03-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0128-00 - Thermostat Rationality. ● P24A4-00 - Particulate Filter Restriction - Soot Accumulation Too High. ● P208B-00 - Reductant Pump 1 Control Performance.** Customers may experience one or more of the following: ● Lower than expected fuel economy when vehicle is lightly loaded, operating in stop and go traffic and at lower speeds. ● Long cranking / extended starting times. **Other software enhancement included with this update: ● "Air Handling Performance Test" is now available to help troubleshoot air handling DTCs.** This bulletin involves reprogramming the PCM with the latest available software.
S1408000384 REV.I2026-02-19. Service bulletin. ELECTRICAL SYSTEM. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On
S26230000062026-02-19. Service bulletin. ELECTRICAL SYSTEM. Washer Fluid Warning Lamp Illuminated When Reservoir Is Full
S2308000120 REV.F2026-02-12. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. Rain Sensing Auto Wipers and Auto on Head Lamps Inoperative. Rain Sensor Internal Failure.
S2308000120 REV.E2026-01-21. Service bulletin. ELECTRICAL SYSTEM. Rain Sensing Auto Wipers and Auto on Head Lamps Inoperative. Rain Sensor Internal Failure.
08-394-25 REV. A2025-12-17. Service bulletin. ELECTRICAL SYSTEM. Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● B1E21-96 - Backup Battery Component Internal Failure.
08-383-25 REV. A2025-12-17. Service bulletin. ELECTRICAL SYSTEM. Telematics Box Module (TBM) Software Updating from 5.39 to 5.65 *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● B2206-00 - Current VIN Missing / Mismatch.** Customers may experience the following: ● **SOS Unavailable message pops up on radio during a remote start event due to TBM DTC B2206-00. This bulletin involves reprogramming the TBM with the latest available software.Telematics Box Module (TBM) Software Updating from 5.39 to 5.65 *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● B2206-00 - Current VIN Missing / Mismatch.** Customers may experience the following: ● **SOS Unavailable message pops up on radio during a remote start event due to TBM DTC B2206-00. This bulletin involves reprogramming the TBM with the latest available software.
91007342025-12-17. Service bulletin. ELECTRICAL SYSTEM. If the DTC B1E21-96: Backup Battery-Component Internal Failure is active and customer states Popup message will show at the radio: "Battery of Uconnect Box requires service. SOS call and related functions may be unavailable. Please visit an authorized dealer." PLEASE do not Replace the TBM module, only replace TBM Internal Battery (inside Telematics Box Module) and order PN68493347
91007352025-12-17. Service bulletin. ELECTRICAL SYSTEM. Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders: Warranty, Mopar, Customer pay and Service contract. Order"68" part number for New unsold units only
S258A0000212025-12-11. Service bulletin. ELECTRICAL SYSTEM. Diagnostic Trouble Code (DTC) B15A1-00 Media Port Connection 1 Connection Found Set.
08-394-252025-12-11. Service bulletin. ELECTRICAL SYSTEM. Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present echnicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● B1E21-96 - Backup Battery Component Internal Failure
S25240000142025-11-26. Service bulletin. ELECTRICAL SYSTEM; SEATS; STEERING. Heated Seats And Heated Steering Wheel Inoperative
08-383-252025-11-26. Service bulletin. ELECTRICAL SYSTEM. Telematics Box Module (TBM) Firmware Over The Air (FOTA) Software Updating from 5.39 to 5.65 Customers may experience the following: ● No connectivity. This bulletin involves flashing the TBM to the latest software level in the case that the FOTA did not function.
S2308000034 REV.A2025-11-19. Service bulletin. ELECTRICAL SYSTEM. No Wireless Charging Or Slow Wireless Charging
S25080001002025-11-13. Service bulletin. ELECTRICAL SYSTEM. Intermittent Uconnect Box Requires Service Message. TBM Setting Stored Or Pending DTCs B22A9, B1560, B1561, B1562
1062412025-08-06. Service bulletin. ELECTRICAL SYSTEM. LAMP - DOME
S258A0000172025-08-06. Service bulletin. ELECTRICAL SYSTEM. Door speaker Inoperative or No Sound
S2422000001 REV.D2025-07-31. Service bulletin. ELECTRICAL SYSTEM. Tire Pressure Monitor (TPM) Service Information. TPM Lamp On.
S25230000622025-07-02. Service bulletin. ELECTRICAL SYSTEM. Bumper Mounted 7 Pin Trailer Tow Connector
1049742025-06-26. Service bulletin. ELECTRICAL SYSTEM. LAMP - DOME
OTHERDOC_1322025-06-17. Over-the-air update. ELECTRICAL SYSTEM. "Global Telematics Box Module Over The Air Update from 5.39.1 to 5.65 TBM2.0 Software Version (FOTA) Customers may experience one or more of the following: - Error display of ""Uconnect Box Requires Service/Wifi Unavailable"" popups; [ TBM DTC B22A9-96 Internal Performance Failure ]. - Error display of ""Uconnect Box Requires Service"" pop-ups; [ TBM DTCs B1560, B1561, B1562 - Antenna loose connection ]."
08-182-252025-06-10. Service bulletin. ELECTRICAL SYSTEM; SEATS. "Power Seat Not Adjusting Customers may experience one or more of the following: ● Driver and/or passenger seat moves backwards but not forward. ● Driver and/or passenger seat inoperative. This bulletin involves replacing the front power seat adjusters."
91005922025-05-29. Service bulletin. ELECTRICAL SYSTEM. LAMP Courtesy/Ambient Courtesy / Ambient Lamp: Light guide not fully seated into the retainer during IP sub-assembly due to inconsistent operator installation effort, leading to latent BSR issue that manifests under customer usage conditions. Solution: remove and reinstall light guide to be fully seated in the bracket retainer.
91005742025-05-29. Service bulletin. ELECTRICAL SYSTEM. Radio: Capture software version from radio. Record or document software version prior to troubleshooting, as soon as any infotainment issue has been found or reported. Also always document in claim. Steps to capture Radio version number: 1. Go to "Vehicle" 2. Go to "Settings" 3. Go to "System Information" 4. Find the radio version from "Version information" Example software version: U37.2, U39.4, etc.
S25080000392025-05-19. Service bulletin. ELECTRICAL SYSTEM. Universal Garage Door Opener (UGDO) Inoperative, LED Indicator Lamps Not Illuminating

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