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February 24, 2026 Service bulletin

Cummins 6.7L Air Filter Replacement DTC P0299 Customers must experience a Malfunction Indicator Lamp (MIL)...

Ram technical service bulletin 09-003-26 for 2019-2024 Ram 2500 and 2019-2024 Ram 3500.

Bulletin number
09-003-26
Component
Engine
Summary
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.

Owners of these vehicles have filed 256 complaints in the engine category.

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