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Service bulletins for the 2026 Ram 3500

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.

240 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
S268A0000052026-02-19. Service bulletin. ELECTRICAL SYSTEM. Front HDMI Port or Front Passenger Display Module (FPDM) Not Projecting Video
S268A0000062026-02-19. Service bulletin. ELECTRICAL SYSTEM. Hands-Free Voice Concerns Including No Voice Pickup, Muffled Audio, Distortion, or Intermittent Microphone Operation
S26230000062026-02-19. Service bulletin. ELECTRICAL SYSTEM. Washer Fluid Warning Lamp Illuminated When Reservoir Is Full
1100812026-02-19. Service bulletin. ELECTRICAL SYSTEM. MODULE - TRAILER BRAKE & TOWING CONTROL
08-056-262026-02-19. Service bulletin. ELECTRICAL SYSTEM. Flash: Brake System Control Module (BSCM) Updates 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): ● C0037-2F - Left Rear Wheel Speed Sensor - Signal Erratic. ● C003A-2F - Right Rear Wheel Speed Sensor - Signal Erratic. Customers may also comment on the following: ● When either or both DTCs are set the ABS light will turn on and vehicle will lose ABS, Trailer Sway Control (TSC) and Electronic Stability Control (ESC) functions. This bulletin involves reprogramming the BSCM module with the latest available software.
1100822026-02-12. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM. MODULE - TRAILER BRAKE & TOWING CONTROL
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.
18-011-262026-02-04. Service bulletin. ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low. ● P0087-00 - Fuel Rail Pressure Too Low. ● P2540-00 - Low Pressure Fuel System Sensor Circuit Range/Performance. ● P2543-00 - Low Pressure Fuel System Sensor Circuit Intermittent. ● P20EE-00 - SCR Nox Catalyst Efficiency Below Threshold - Bank 1 Catalyst 1. ● P203F-00 - Reductant Level Too Low. ● P2698-00 - Exhaust Aftertreatment Fuel Injector "A" Performance. ● P06B9-00 - Cylinder 1 Glow Plug Circuit Performance. ● P06BA-00 - Cylinder 2 Glow Plug Circuit Performance. ● P06BB-00 - Cylinder 3 Glow Plug Circuit Performance. ● P06BC-00 - Cylinder 4 Glow Plug Circuit Performance. ● P06BD-00 - Cylinder 5 Glow Plug Circuit Performance. ● P06BE-00 - Cylinder 6 Glow Plug Circuit Performance. Customers may also comment on one or more of the following: ● Diesel Exhaust Fluid (DEF) level gauge inaccuracy. ● Poor cold start performance. ● Unable to initiate manual Diesel Particulate Filter (DPF) regen through Electronic Vehicle Information Center (EVIC). ● While using the remote Power Take-Off (PTO) feature, the PTO may not engage or resume operation properly, after disengaging: 1. Engine is running with PTO engaged. 2. Operator is using the equipment, for example a bucket attachment. 3. Operator gets in position, then uses remote start/stop button to turn truck off while they perform a task. 4. The task is completed, then operator is ready to move the bucket so they use remote start/stop to start the engine. 5. The engine starts, but PTO does not automatically re-engage so their equipment doesn’t operate. This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.
08-033-262026-02-04. Service bulletin. ELECTRICAL SYSTEM. Flash: Body Control Module (BCM) Updates Customers may comment on the following: ● The AUX switches Fig. 1 do not remember (hold) the last position the switches were in after the ignition is cycled. ● Vehicles equipped with booms may experience operators stuck in booms as the vehicle has shut off during operations, leaving the boom operator with no way to restart the vehicle. This bulletin involves inspecting and reprogramming the BCM with the latest available software. M08 FSAR-TSB-6916 -2-
08-020-262026-02-04. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM. Flash: Central ADAS Decision Module (CADM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set at least one of the following Diagnostic Trouble Codes (DTCs): ● C2203-00 - Current VIN Missing/Mismatch. ● C008E-00 - ECU Internal Performance with Environmental Data Decode Byte: APP_FATAL_ERROR_APP_CONFIGURATION_ERROR_FAULT. Customers may also comment on one or more of the following: ● The Instrument Panel Cluster (IPC) is displaying one or more of the following messages: ○ "ACC/FCW Unavailable Service Required". ○ "ACC/FCW Limited Functionality". ○ "Active Lane Management Limited Functionality." ○ "Active Lane Management Unavailable Service Required". ○ "Automatic Emergency Braking (AEB) Limited Service Required". ○ "AEB Unavailable Service Required". ○ "Blindspot Detection Unavailable Service Required" ○ "Blindspot Detection Limited Functionality" ● Customer states that the ADAS features are disabled. This bulletin involves reprogramming of the CADM with the latest available software and possibly performing a Forward Facing Camera (FFC) Dynamic Service Alignment / Calibration procedure. J08 FSAR-TSB-6773 -2-
08-018-262026-01-28. Service bulletin. ELECTRICAL SYSTEM. Flash: Radio Frequency Hub Module (RFHM) Updates Technician may find the vehicle has set at least one of the following Diagnostic Trouble Codes (DTCs): ● B1A08-00 - RKE Fob 1 Performance. ● B1A09-00 - RKE Fob 2 Performance. Customers may also comment on one or more of the following: ● Lock / unlock from keyfob inoperable. ● Passive entry inoperable. This bulletin involves reprogramming of the RFHM with the latest available software.
S2308000120 REV.E2026-01-21. Service bulletin. ELECTRICAL SYSTEM. Rain Sensing Auto Wipers and Auto on Head Lamps Inoperative. Rain Sensor Internal Failure.
08-012-262026-01-21. Service bulletin. ELECTRICAL SYSTEM. Speaker Diagnostic Procedure Rattle, buzz and squeak coming from specific speakers.
1093562026-01-14. Service bulletin. ELECTRICAL SYSTEM. HEADLAMP – NONE
S258A0000252025-12-23. Service bulletin. ELECTRICAL SYSTEM. Customer states Navigation is inaccurate, showing in wrong city or state.
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.
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
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
S2508000096 REV.A2025-12-03. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Vehicle Ignition Status Will Change From “RUN” to “OFF” After a Specific Number of Minutes Following The Use of The Wired Remote Start Stop (WRSS)
S25240000142025-11-26. Service bulletin. ELECTRICAL SYSTEM; SEATS; STEERING. Heated Seats And Heated Steering Wheel Inoperative
S25230000882025-11-26. Service bulletin. ELECTRICAL SYSTEM. Vehicle Shifter Will Not Shift Out Of Park.
S2308000034 REV.A2025-11-19. Service bulletin. ELECTRICAL SYSTEM. No Wireless Charging Or Slow Wireless Charging
S25080000992025-11-19. Service bulletin. ELECTRICAL SYSTEM. Trailer Light Check Appears on Vehicles Not Equipped With the Option
08-374-252025-11-19. Service bulletin. WHEELS; ELECTRICAL SYSTEM. Max Tow Right and Left Rear Wheel Speed Sensors Inoperable Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● C003A-62 - Right Rear Wheel Speed Sensor - Signal Compare Failure. ● C0037-62 - Left Rear Wheel Speed Sensor - Signal Compare Failure. ● C003A-2F - Right Rear Wheel Speed Sensor - Signal Erratic. ● C0037-2F - Left Rear Wheel Speed Sensor - Signal Erratic. Customers may experience one or more of the following: ● The check engine light illuminates. ● The ABS light illuminates. ● The traction control light illuminates. ● The forward collision warning lamps light illuminates. ● The 4WD unavailable message on the Instrument Panel Cluster (IPC). ● Vehicle might not shift from drive to park or vice versa. The vehicle safe hold systems are in place if the vehicle does not shift to park. ● Vehicle will not shut off. This bulletin involves replacing both rear wheel speed sensors.

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