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Service bulletins for the 2025 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.

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

By type

By component

By trouble code

Bulletins, newest first
S25080000392025-05-19. Service bulletin. ELECTRICAL SYSTEM. Universal Garage Door Opener (UGDO) Inoperative, LED Indicator Lamps Not Illuminating
S2323000002 REV.A2025-05-19. Service bulletin. ELECTRICAL SYSTEM. "Washer Light On And Will Not Turn Off After Adding Washer Solvent."
S25250000022025-05-19. Service bulletin. UNKNOWN OR OTHER. Diesel Exhaust Fluid (DEF) Gauge Fluctuates Or Is Erratic. Diagnostic Trouble Code (DTC) P203F – Reductant Level Too Low.
S2308000120 REV.D2025-05-19. Service bulletin. ELECTRICAL SYSTEM. Rain Sensing Auto Wipers and Auto on Head Lamps Inoperative
S25080000362025-05-16. Service bulletin. ELECTRICAL SYSTEM. The Occupant Restraint Controller (ORC) Will Set The B2204-00 DTC In Unknown Status (pending), For B2204-00 ECU Configuration Mismatch
1046852025-05-16. Service bulletin. FUEL/PROPULSION SYSTEM. FILTER - FUEL
91005792025-05-14. Service bulletin. SERVICE BRAKES. Parking Brake Pad When replacing the park brake pedal pad, please use the correct labor operation code. Some technicians have been using the brake pedal pad labor code which is not the same as the parking brake pedal pad. The correct labor operation code should be for parking brake pedal pad replacement is 05-05-06-01.
S25230000202025-05-14. Service bulletin. ELECTRICAL SYSTEM. Diagnostic Trouble Code (DTC) U300A-29
S25230000442025-05-14. Service bulletin. STRUCTURE:BODY. Whistling Noise From Left Side Exterior Mirror Area While Driving.
1037742025-05-01. Service bulletin. ELECTRICAL SYSTEM. LAMP - DOME
1044072025-05-01. Service bulletin. ELECTRICAL SYSTEM. RECEIVER - WIRELESS CONTROL MODULE
S2308000120 REV.C2025-04-30. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. Rain Sensing Auto Wipers and Auto on Head Lamps Inoperative
08-119-252025-04-23. Service bulletin. ELECTRICAL SYSTEM. "Flash: Security Gateway Module(SGW Update) Customers may experience the following: ● Map data not working properly. This bulletin involves updating the SGW with the latest available software."
S2508000017 REV.A2025-04-23. Service bulletin. ELECTRICAL SYSTEM. Radio Frequency Hub (RFH) Module has an Active Diagnostic Trouble Code (DTC) B22A9-00 ECU Internal Performance.
S25180000022025-04-22. Service bulletin. UNKNOWN OR OTHER; ENGINE. Wait To Start/Delayed Engine Crank Feature Inoperative When Cold.
91005482025-04-17. Service bulletin. SEATS. "ADJUSTER Seat DJ D2 DP 1st Row Power Seat Fore/Aft Adjuster Inspection TSB is also released for this concern. SYMPTOM/CONDITION: Fore-aft function does NOT work when actuating the seat switch. DIAGNOSIS: 1) Put seat in position for inspection. 2) Disconnect seat wire harness motor connector from the fore-aft motor on the seat adjuster, wait 10 seconds, and reconnect. 3) Verify function of the fore/aft adjuster. Step 1. Open 2nd row door and function rear seat cushions up to stowed position. Step 2. Adjust the driver front seat to the full up position. Use switches on the side shield to move power seat fully up. Step 3. Remove the 4 bolts that hold the seat to the truck floor and discard. The bolts have lock patch that is not reusable. Step 4. Lay the seat down so its laying on its back so the underside of the seat is easily accessible. Step 5. Remove the fore/aft wire harness motor connector from the fore/aft motor (back right of the seat adjuster). Push on the tab to remove the motor wire harness connector from the motor. Leave disconnected for 10 seconds. Step 6. Reconnect the fore/aft wire harness motor connector to the fore/aft motor. Push / Pull / Push the connector with fingers to ensure the wire harness connector is fully seated to the fore/aft motor connector. Step 7. Before assembling the seat back to the truck floor, cycle the seat to check that the motor is working properly by pressing the fore/aft switch. If fore/aft motor does not function, please refer to Replacement Procedure below. Step 8. If the seat is working properly, carefully reassemble the seat back to the truck floor using the four new bolts. Use a torque wrench to verify 47 Nm. Step 9. *Note: Checking the passenger seat will be the same procedure as the driver seat. REPLACEMENT PROCEDURE Only for seats rejected after inspection. Replace Power Seat Adjuster per MOPAR service part replacement instructions. MOPAR Part Numbers: 68455847AA, 68455848AA, 68455849AA"
S25230000272025-04-11. Service bulletin. STRUCTURE:BODY. Driver And Or Passenger Window Inoperative.
S25230000232025-04-07. Service bulletin. ELECTRICAL SYSTEM. Trailer Tow Lights Inoperative. Diagnostic Trouble Codes (DTCs) B166E-13 B17AD-13 May Be Set.
S25080000252025-04-04. Service bulletin. ELECTRICAL SYSTEM. Instrument Panel Cluster (IPC) and Radio Compass Display has Dashes (--)
S25230000242025-04-04. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Rear Defogger Solder Terminals Detached.
91005372025-04-01. Service bulletin. ELECTRICAL SYSTEM. "Body control module Customer may experience the compass on Radio ""ETM/LTM"" and IPC to display ""--"". Technician will also experience this as well as BCM DTC U147C-00 ""Implausible data received from ETM"" as active until the customer/technician drives the vehicle around Steps to revive: - 1.Drive vehicle around until the compass direction appears in IPC and ETM/LTM. 2.also a reset to the radio may recover the issue until the next sleep cycle."
91005252025-03-26. Service bulletin. ELECTRICAL SYSTEM. "Base led headlamp RT 25 MY HDCC Ignition DTC (U300A-29 Ignition Switch - Signal Invalid) in stored state for SLML and SLMR. All headlamps on the Heavy Duty with SW 24.43.00(Premium) or 24.44.00(Base) will show a U300A-29 -> Ignition Switch-Signal Invalid as a stored DTC. If you experience this condition, please clear the DTCs on SLML and SLMR once and restart the truck and check if the DTC is in active state 10 seconds after the engine is turned ON, check the hardware ignition line and repair as required. If the DTC reappears as stored DTC (See Figure 1), no repair is required. The headlamps are good. The DTCs will appear every time the Ignition is cycled, and should be ignored."
91005302025-03-24. Service bulletin. ELECTRICAL SYSTEM. "Receiver Hub Please refer SOL ""S2508000017"" published in February 2025. DO NOT REPLACE RFHM module PN 68671484AD due to active RFH ECU internal performance DTC B22A9-00. Please refer SOL information below. Symptom/Vehicle Issue: Radio Frequency Hub (RFH) Module has an Active Diagnostic Trouble Code (DTC) B22A9- 00 ECU Internal Performance Technician Observation: RFH Module is setting an active DTC B22A9-00 Electronic Control Unit (ECU) Internal Performance with no customer complaints. Please do not replace RFH module if all the following conditions are TRUE 1-3. 1. Vehicle has RFH PN # 68671484AD 2. Active RFH DTC B22A9-00 ECU internal performance. 3. No functional issues observed or reported, DTC cannot be cleared. DO NOT REPLACE THE RFH IF THER ARE NO FUNCTIONAL ISSUES. Note:" Below are the functional tests that can be validated for complaints as needed. i. Remote Keyless entry (RKE) ii. Passive Entry (If equipped, sales code
S2423000027 REV.C2025-03-13. Service bulletin. ELECTRICAL SYSTEM. Horn Sound Is Weak, Off Tone, Inoperative, Or Intermittent.
S2409000002 REV.A2025-03-13. Service bulletin. ENGINE. Perceived Oil Leak From The Rear Of The Engine

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