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Service bulletins for the 2020 Ram 1500

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.

1228 on file from NHTSA, as of 2026-10-19.

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

Bulletins, newest first
90042672020-07-27. Service bulletin. FUEL SYSTEM, GASOLINE. FUEL, Tank Please be advised, do not replace fuel tanks with a fuel tank that has a different capacity than the vehicle was equipped with from the factory. Please do not attempt to upfit vehicles at the dealer with increased capacity tanks, they are not compatible.
S20090000022020-06-22. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL. Oil Leak From The Front Timing Gear Housing Gasket. (Note: ETL, ETK, ETM, ETN Diesel Engines)
S19250000082020-06-22. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; EQUIPMENT. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
18-039-202020-05-26. Service bulletin. FUEL SYSTEM, GASOLINE. Possible Driveability Issues due to the Winter-Blend Fuel into the Warmer Season
09-005-202020-05-26. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. 3.0L Oil Filter Cartridge Identification Differences And Oil Filter Element Servicing Procedure This bulletin outlines the correct procedure for changing an oil filter on a 3.0L diesel to prevent engine damage. The bulletin also highlights the design differences in the oil filter cartridges used in the GEN-2 and GEN-3 3.0L diesel. As well as potential issues that can arise should the incorrect filter be used in each application.
09-005-202020-05-18. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. 3.0L Oil Filter Cartridge Identification Differences And Oil Filter Element Servicing Procedure This bulletin outlines the correct procedure for changing an oil filter on a 3.0L diesel to prevent engine damage. The bulletin also highlights the design differences in the oil filter cartridges used in the GEN-2 and GEN-3 3.0L diesel. As well as potential issues that can arise should the incorrect filter be used in each application.
S20180000022020-05-18. Service bulletin. FUEL SYSTEM, GASOLINE. Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
D-19-20 Rev. B2020-04-27. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. Fast Feedback Program - 3.0L Diesel Engine and Components - 2020 Ram 1500 (DT) and 2020 Jeep Wrangler (JL) - All Models (Rev. B)
18-089-192019-12-16. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
D-19-222019-12-02. Service bulletin. FUEL SYSTEM, DIESEL. Warranty Bulletin: 2020 Ram 1500 (DT) 3.0L Diesel Gen III Oil Filter Correct Part Usage
90041502019-12-02. Service bulletin. FUEL SYSTEM, GASOLINE; POWER TRAIN. SEAL, Input If looking to replace stubshaft due to ATX fluid leaking, do not replace PTU seals. None of the seals from the PTU side will need to be replaced whenever the ATX stubshaft is replaced, even though V-seal (68408748A$) is in direct contact with the stubshaft, it will not avoid grease/oil leakage from transmission side. PTU V-seals are intended to act as a dust cover for stubshaft - PTU input shaft spline interface. PTU Input shaft seal (68408749A$) is intended to hold PTU oil and debris ingress; it should be replaced only if the fluid leakage is confirmed to be PTU oil and not ATX trans. fluid.
D-19-202019-10-28. Service bulletin. FUEL SYSTEM, DIESEL. Fast Feedback Program - 3.0L Diesel Engine and Components - 2020 Ram 1500 (DT) - All Models
552722019-07-15. Service bulletin. FUEL SYSTEM, GASOLINE. Tube- Fuel Filler
551362019-07-15. Service bulletin. FUEL SYSTEM, GASOLINE. Tube- Fuel Filler

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