P1174: owner reports and bulletins

Powertrain (manufacturer-specific). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P1174 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 P1174, 2 of them since 2015, across 6 different models. The component owners most often filed it under: electronic stability control (esc).

Manufacturer service bulletins that name P1174

3 technical service bulletins and manufacturer communications filed with NHTSA mention P1174, from 3 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • CHEVROLET MALIBU (2006, 2007), bulletin 10161013: This prelimary information informs the dealer of a potential fuel injector concern that could set diagnostic trouble code P1174. The dealer is instructed to test the fuel injectors with the Active Fuel Injector testing t…
  • PONTIAC G6 (2006, 2007), bulletin 10161013: This prelimary information informs the dealer of a potential fuel injector concern that could set diagnostic trouble code P1174. The dealer is instructed to test the fuel injectors with the Active Fuel Injector testing t…
  • SATURN AURA (2007), bulletin 10161013: This prelimary information informs the dealer of a potential fuel injector concern that could set diagnostic trouble code P1174. The dealer is instructed to test the fuel injectors with the Active Fuel Injector testing t…

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.