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Service bulletins for the 2026 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.

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

By type

By component

By trouble code

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

Bulletins, newest first
9100833 REV12026-07-18. Service bulletin. FUEL/PROPULSION SYSTEM. Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and drivability issues, the technician should disconnect the electrical connector at the pump and perform a visual inspection of the connector for and bent, spread, or pushed out terminals. Repair any issues found. Reconnect the plug and perform a push pull push to ensure the connector is fully installed. Then perform 3 keys cycles and listen to hear if the fuel pump is operational. If the fuel pump is heard that indicates that everything is operating correctly. If the pump is heard replacement is not necessary, any replacement will function in the same way.
91008332026-07-02. Service bulletin. FUEL/PROPULSION SYSTEM. Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and drivability issues, the technician should disconnect the electrical connector at the pump and perform a visual inspection of the connector for and bent, spread, or pushed out terminals. Repair any issues found. Reconnect the plug and perform a push pull push to ensure the connector is fully installed. Then perform 3 keys cycles and listen to hear if the fuel pump is operational. If the fuel pump is heard that indicates that everything is operating correctly. If the pump is heard replacement is not necessary, any replacement will function in the same way.
1128672026-07-02. Service bulletin. FUEL/PROPULSION SYSTEM. INJECTOR - FUEL
S2508000109 REV.A2026-04-22. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Instrument Cluster Fuel and Coolant Temperature Gauge Do Not Reset To The Home Position And Show Incorrect Values
S25080001092026-04-15. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. Instrument Cluster Fuel and Coolant Temperature Gauge Do Not Reset To The Home Position And Show Incorrect Values
S2514000002 REV.A2026-04-10. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM. P2540 Diagnostic Trouble Code (DTC) and Longer Than Expected, Extended Crank Time After Fuel Level Run Too Low or After Fuel Filter/System Servicing
S2525000002 REV.A2026-02-19. Service bulletin. FUEL/PROPULSION SYSTEM. Diesel Exhaust Fluid (DEF) Gauge Fluctuates Or Is Erratic. Diagnostic Trouble Code (DTC) P203F – Reductant Level Too Low.
S25080000812025-09-17. Service bulletin. FUEL/PROPULSION SYSTEM. Water in Fuel (WIF) Warning Lamp on After Draining Fuel Filter Module

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