P305F: 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 P305F 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 P305F, 6 of them since 2015, across 2 different models. The component owners most often filed it under: electrical system.

Most-reported models

VehicleComplaintsModel years reported
CHEVROLET MALIBU52014, 2015

Manufacturer service bulletins that name P305F

4 technical service bulletins and manufacturer communications filed with NHTSA mention P305F, from 1 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • CHEVROLET MALIBU (2014, 2015, 2016, 2017), bulletin 10137614: This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Smoke or Burning Odor from Underhood with Malfunction Indicator Lamp Illuminated with DTC P305F or P…
  • CHEVROLET IMPALA (2014, 2015, 2016, 2017), bulletin 10155016: This engineering information PI ends the need for information from the field on vehicles that have the condition of Smoke or Burning Odor from Underhood with Malfunction Indicator Lamp Illuminated with DTC P305F or P058D…

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.