P2A00: 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 P2A00 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

5 complaints filed with NHTSA mention P2A00, 3 of them since 2015, across 5 different models. The component owners most often filed it under: engine.

Manufacturer service bulletins that name P2A00

27 technical service bulletins and manufacturer communications filed with NHTSA mention P2A00, from 8 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • 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…
  • GMC YUKON XL 1500 (2023, 2022, 2024), 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…
  • CADILLAC ESCALADE (2022, 2023, 2024), 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…
  • GMC SIERRA 1500 (2022, 2023, 2024), bulletin 11007118: 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…
  • CHEVROLET SUBURBAN 1500 (2022, 2023, 2024), bulletin 11007118: 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…
  • FORD F-250 SD (2022), bulletin 10202863: Some 2022 F-Super Duty vehicles equipped with a 6.7L engine and built on or before 05-Oct-2021 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P054E, P054F, P02ED, P2A00 An…

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.