P2459: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P2459 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

8 complaints filed with NHTSA mention P2459, 8 of them since 2015, across 5 different models. The component owners most often filed it under: engine.

Most-reported models

VehicleComplaintsModel years reported
RAM 350032022, 2024

Manufacturer service bulletins that name P2459

95 technical service bulletins and manufacturer communications filed with NHTSA mention P2459, from 8 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • VOLVO VOLVO TRUCK, bulletin 10215344: Volvo Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Frequent Regeneration Requests - US14+OBD15 And US14+OBD16 Emissions
  • CHEVROLET SILVERADO 3500 (2017, 2018, 2019, 2020), bulletin 11009430: This technical bulletin provides a procedure to correct the condition of Malfunction Indicator Lamp Illuminated with DTCs P2463 P2459 P11FB P11D3.
  • CHEVROLET SILVERADO 2500 (2024), bulletin 10247528: This service bulletin provides a procedure to correct the condition of Malfunction Indicator Lamp Illuminated with DTCs P0402, P062D, P144E, P242B, P2459, and/or P2635Set.
  • GMC SIERRA 3500 (2024), bulletin 10247528: This service bulletin provides a procedure to correct the condition of Malfunction Indicator Lamp Illuminated with DTCs P0402, P062D, P144E, P242B, P2459, and/or P2635Set.
  • GMC SIERRA 2500 (2024), bulletin 11001768: This service bulletin refers the technician to Recall N242438501, and if closed, refer to SI to correct the condition of Malfunction Indicator Lamp Illuminated with DTCs P0402, P062D, P144E, P242B, P2459, and/or P2635 Se…
  • CHEVROLET SUBURBAN (2022, 2024, 2023), bulletin 11001785: This technical bulletin provides a procedure to test the intake manifold for any possible leaks that may cause the customers concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P0172, P026D, P2459, and/or P2A…

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.