C0131: owner reports and bulletins

Chassis. We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got C0131 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

6 complaints filed with NHTSA mention C0131, 3 of them since 2015, across 3 different models. The component owners most often filed it under: service brakes.

Most-reported models

VehicleComplaintsModel years reported
CHEVROLET MALIBU42008, 2009, 2010

Manufacturer service bulletins that name C0131

11 technical service bulletins and manufacturer communications filed with NHTSA mention C0131, from 2 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • BUICK ENCORE (2013, 2014, 2015, 2016), bulletin 10251700: This Preliminary Information communication provides information to the technician about vehicles that had the Brake Pressure Modulator Valve now Diagnostic Trouble Code C0131 is set current. Technician should remove Brak…
  • CHEVROLET SONIC (2012, 2013, 2014, 2015), bulletin 10251700: This Preliminary Information communication provides information to the technician about vehicles that had the Brake Pressure Modulator Valve now Diagnostic Trouble Code C0131 is set current. Technician should remove Brak…

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.