P0050: 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 P0050 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

No consumer complaints filed with NHTSA mention P0050. That usually means it's rare, or owners don't quote the code when they file.

Manufacturer service bulletins that name P0050

5 technical service bulletins and manufacturer communications filed with NHTSA mention P0050, from 5 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • NISSAN MURANO (2020), bulletin 10177219: MIL ON WITH DTC P0053, P0059, P0030 AND/OR P0050 STORED IF YOU CONFIRM The MIL is ON with one or more of the following A/F SENSOR 1 HEATER DTCs stored: P0053 P0059 P0030 P0050 ACTION 1. Confirm the current ECM part numbe…
  • LAND ROVER RANGE ROVER (2016), bulletin 10105881: "ISSUE: THE CUSTOMER MAY OBSERVE A MIL IN THE INSTRUMENT CLUSTER RELATING TO THE ENGINE SYSTEM (CHECK ENGINE LIGHT) AND ONE OR MORE CODES STORED IN THE PCM RELATING TO HEATED OXYGEN SENSOR (HO2S) IN THE EXHAUST SYSTEM. T…
  • GMC ACADIA (2013, 2014, 2015), bulletin 10135332: This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find a Diagnostic Trouble Codes P0030, P0031,…
  • BUICK ENCLAVE (2013, 2014, 2015), bulletin 10135332: This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find a Diagnostic Trouble Codes P0030, P0031,…
  • CHEVROLET TRAVERSE (2013, 2014, 2015), bulletin 10135332: This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find a Diagnostic Trouble Codes P0030, P0031,…

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.