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Service bulletins for the 2022 Ram 2500

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.

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

About P2459 on the 2022 Ram 2500: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P2459 are shown. Show all

Bulletins, newest first
S26140000022026-04-22. Service bulletin. ENGINE. Diagnostic Trouble Code (DTC) P2459-00 Particulate Filter Regeneration Too Frequent Setting in the Powertrain Control Module (PCM) or Under Fueling or Over Fueling Condition After Fuel Injector(s) Replacement
25-005-24 REV. B2024-10-30. Service bulletin. UNKNOWN OR OTHER. "Diesel Particulate Filter (DPF) Trying To Regen Too Frequent Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P2459 - Diesel Particulate Filter Regeneration Too Frequent. Customers may also experience the following: ● Vehicle has entered engine performance de-rate mode. NOTE: Engine performance de-rate mode will occur when DTC P2459 has been set for a long period. This bulletin involves replacing the DPF if DTC P2459 is set."
25-005-24 REV. A2024-10-30. Service bulletin. UNKNOWN OR OTHER. "Diesel Particulate Filter (DPF) Trying To Regen Too Frequent Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P2459 - Diesel Particulate Filter Regeneration Too Frequent. Customers may also experience the following: ● Vehicle has entered engine performance de-rate mode. NOTE: Engine performance de-rate mode will occur when DTC P2459 has been set for a long period. This bulletin involves replacing the DPF if DTC P2459 is set."
25-005-242024-10-01. Service bulletin. ENGINE. "Diesel Particulate Filter (DPF) Trying To Regen Too Frequent 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): ● P2459 - Diesel Particulate Filter Regeneration Too Frequent. Customers may also experience the following: ● Vehicle has entered engine performance de-rate mode. NOTE: Engine performance de-rate mode will occur when the DTC has been set for a long period. This bulletin involves replaceing the DPF if DTC P2459 is set."

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