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Service bulletins for the 2024 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.

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

About P0299 on the 2024 Ram 2500: what the code means, and the bulletins and recalls about the same components.

By type

By component

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Only bulletins with trouble code: P0299 are shown. Show all

Bulletins, newest first
08-272-26 REV. A2026-07-23. Service bulletin. ELECTRICAL SYSTEM. Air Handling Performance Test (APT) Availability In wiTECH Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0234-00 - Turbocharger Overboost Condition. ● P0299-00 - Turbocharger Underboost. ● P0101-00 - Mass Air Flow Sensor "A" Circuit Performance. ● P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. ● P24A4-00 - Particulate Filter Restriction - Soot Accumulation Too High. ● P2262-00 - Turbocharger Boost Pressure Not Detected - Mechanical. ● P0471-00 - Exhaust Pressure Sensor 1 Performance. ● P1451-00 - Diesel Particulate Filter System Performance. ● P2457-00 - Exhaust Gas Recirculation Cooling System Performance. ● P2263-00 - Turbo Boost System Performance. ● P2459-00 - Diesel Particulate Filter Regeneration Too Frequent. ● P24A2-00 - Diesel Particulate Filter Regeneration Incomplete - Bank 1. ● P0401-00 - EGR System Performance. ● P0402-00 - EGR Flow Excessive Detected.
08-272-262026-07-18. Service bulletin. ELECTRICAL SYSTEM. Air Handling Performance Test (APT) Availability In wiTECH Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0234-00 - Turbocharger Overboost Condition. ● P0299-00 - Turbocharger Underboost. ● P0101-00 - Mass Air Flow Sensor "A" Circuit Performance. ● P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. ● P24A4-00 - Particulate Filter Restriction - Soot Accumulation Too High. ● P2262-00 - Turbocharger Boost Pressure Not Detected - Mechanical. ● P0471-00 - Exhaust Pressure Sensor 1 Performance. ● P1451-00 - Diesel Particulate Filter System Performance. ● P2457-00 - Exhaust Gas Recirculation Cooling System Performance. ● P2263-00 - Turbo Boost System Performance. ● P2459-00 - Diesel Particulate Filter Regeneration Too Frequent. ● P24A2-00 - Diesel Particulate Filter Regeneration Incomplete - Bank 1. ● P0401-00 - EGR System Performance. ● P0402-00 - EGR Flow Excessive Detected.
09-003-262026-03-05. Service bulletin. ENGINE. Cummins 6.7L Air Filter Replacement DTC P0299 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P0299-00 - Turbocharger Underboost. Customers may also comment on the following: ● Low power/acceleration or lag condition. This bulletin involves performing an Air Handling Performance Test (APT) and possibly replacing the air filter.
91006782025-11-05. Service bulletin. ENGINE. 1. General Parts Update The recommended air filter for 2019 Model Year (MY) and newer 6.7L Cummins equipped vehicles has been updated. New Part: 68645327AA (Non-Oiled Air Filter) Replaces: 53034051AA (Oiled Air Filter) - This part is superseded and should no longer be installed. The air filter for all other applications remains unchanged: Continue to use 68517554AA for: All 2018 MY and older 6.7L Cummins equipped vehicles. All 2019 MY and newer vehicles with non-6.7L engines. 2. Special Service Procedure for DTC P0299 Application: 2019-2024 MY HD Trucks with 6.7L Diesel (ETM/ETN) Condition: If DTC P0299 is active and the vehicle is equipped with the previous oiled air filter (PN# 53034051AA). Procedure: Replace the oiled air filter (53034051AA) with the new non-oiled filter (68645327AA). Service Catalog reflects these updated usages.
08-350-252025-10-29. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Air Handling Performance Test (APT) Availability In wiTECH Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0234-00 - Turbocharger Overboost Condition. ● P0299-00 - Turbocharger Underboost. ● P0101-00 - Mass Air Flow Sensor "A" Circuit Performance. ● P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. ● P24A4-00 - Particulate Filter Restriction - Soot Accumulation Too High. ● P2262-00 - Turbocharger Boost Pressure Not Detected - Mechanical. ● P0471-00 - Exhaust Pressure Sensor 1 Performance. ● P1451-00 - Diesel Particulate Filter System Performance. ● P2457-00 - Exhaust Gas Recirculation Cooling System Performance. ● P2263-00 - Turbo Boost System Performance. ● P2459-00 - Diesel Particulate Filter Regeneration Too Frequent. ● P24A2-00 - Diesel Particulate Filter Regeneration Incomplete - Bank 1. ● P0401-00 - EGR System Performance. ● P0402-00 - EGR Flow Excessive Detected
18-001-25 REV. A2025-01-28. Service bulletin. POWER TRAIN. "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit one or more of the following Diagnostic Trouble Codes (DTCs): ● P245D - EGR Cooler Bypass Control Circuit High. ● P02E3 - Diesel Intake Air Flow Control Circuit High. ● P0490 - EGR Control circuit High. ● P229F - Aftertreatment N0X Sensor Circuit Performance - Bank 1 Sensor 2. ● P0299 - Turbocharger Underboost. ● P242F - Diesel Particulate Filter Restriction - Ash Accumulation. ● P0128 - Thermostat Rationality. In addition, the following software enhancements are available: ● Improved troubleshooting and repair accuracy for air handling components. ● Eliminates false faults for air handling actuators. This bulletin involves reprogramming the ECM/PCM with the latest available software"
18-001-252025-01-22. Service bulletin. POWER TRAIN. "Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit one or more of the following Diagnostic Trouble Codes (DTCs): ● P245D - EGR Cooler Bypass Control Circuit High. ● P02E3 - Diesel Intake Air Flow Control Circuit High. ● P0490 - EGR Control circuit High. ● P229F - Aftertreatment N0X Sensor Circuit Performance - Bank 1 Sensor 2. ● P0299 - Turbocharger Underboost. ● P242F - Diesel Particulate Filter Restriction - Ash Accumulation. ● P0128 - Thermostat Rationality. In addition, the following software enhancements are available: ● Improved troubleshooting and repair accuracy for air handling components. ● Eliminates false faults for air handling actuators. This bulletin involves reprogramming the ECM/PCM with the latest available software"

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