P3497: 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 P3497 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

22 complaints filed with NHTSA mention P3497, 19 of them since 2015, across 6 different models. The component owners most often filed it under: engine.

Most-reported models

VehicleComplaintsModel years reported
HONDA ODYSSEY102008, 2009, 2010, 2012, 2016
HONDA PILOT32009, 2011
HONDA ACCORD CROSSTOUR32010
HONDA CROSSTOUR32010

Manufacturer service bulletins that name P3497

1 technical service bulletins and manufacturer communications filed with NHTSA mention P3497, from 1 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • HONDA ODYSSEY (2013), bulletin 10128532: Service bulletin - The MIL comes on with one or more misfire DTC(s) P0301 thru P0304 (Number 1-4 cylinder misfire detected). DTC P3400 (rocker arm oil pressure switch B) and/or P3497 (rocker arm oil pressure switch C) ma…

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.