P0202: 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 P0202 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

7 complaints filed with NHTSA mention P0202, 6 of them since 2015, across 7 different models. The component owners most often filed it under: fuel/propulsion system.

Manufacturer service bulletins that name P0202

72 technical service bulletins and manufacturer communications filed with NHTSA mention P0202, from 12 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • GMC SIERRA 1500 (2023, 2024), bulletin 11001835: This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Check Engine Lamp illuminated on Driver Information Center (D…
  • CHEVROLET SUBURBAN (2024, 2023), bulletin 11001835: This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Check Engine Lamp illuminated on Driver Information Center (D…
  • CADILLAC ESCALADE ESV (2023, 2024), bulletin 11001835: This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Check Engine Lamp illuminated on Driver Information Center (D…
  • CHEVROLET TAHOE (2023, 2024), bulletin 11002311: This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Check Engine Lamp illuminated on Driver Information Center (D…
  • GMC YUKON (2023, 2024), bulletin 11002311: This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Check Engine Lamp illuminated on Driver Information Center (D…
  • CADILLAC ESCALADE (2023, 2024), bulletin 11002311: This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Check Engine Lamp illuminated on Driver Information Center (D…

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.