P0498: 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 P0498 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

4 complaints filed with NHTSA mention P0498, 4 of them since 2015, across 3 different models. The component owners most often filed it under: fuel/propulsion system.

Manufacturer service bulletins that name P0498

4 technical service bulletins and manufacturer communications filed with NHTSA mention P0498, from 4 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • BUICK ENCLAVE (2019), bulletin 10163910: Some customers may note a Check Engine Light related to the evaporative emission canister performance. Technicians may find the following DTCs set: P0442 P0455 P0446 P0449 P0498 This engineering informational bulletin is…
  • CADILLAC XT5 (2019), bulletin 10163910: Some customers may note a Check Engine Light related to the evaporative emission canister performance. Technicians may find the following DTCs set: P0442 P0455 P0446 P0449 P0498 This engineering informational bulletin is…
  • CHEVROLET EQUINOX (2019), bulletin 10163910: Some customers may note a Check Engine Light related to the evaporative emission canister performance. Technicians may find the following DTCs set: P0442 P0455 P0446 P0449 P0498 This engineering informational bulletin is…
  • GMC ACADIA (2019), bulletin 10163910: Some customers may note a Check Engine Light related to the evaporative emission canister performance. Technicians may find the following DTCs set: P0442 P0455 P0446 P0449 P0498 This engineering informational bulletin is…

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.