P0850: 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 P0850 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

7 complaints filed with NHTSA mention P0850, 4 of them since 2015, across 5 different models. The component owners most often filed it under: power train.

Most-reported models

VehicleComplaintsModel years reported
NISSAN PATHFINDER32007, 2014

Manufacturer service bulletins that name P0850

2 technical service bulletins and manufacturer communications filed with NHTSA mention P0850, from 2 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • LAND ROVER RANGE ROVER SPORT (2014), bulletin 10101662: "SITUATION: THE TRANSMISSION MAY BE UNABLE TO SHIFT FROM PARK (P) AND A 'GEARBOX FAULT' MESSAGE MAY DISPLAYED IN THE INSTRUMENT CLUSTER. UPON INVESTIGATION, THE FOLLOWING DIAGNOSTIC TROUBLE CODES (DTC) WILL BE STORED: U0…
  • FORD FOCUS (2012, 2013), bulletin 10056788: FORD: SOME VEHICLES ARE EXPERIENCING, WITH OR WITHOUT POWERTRAIN DIAGOSTIC TROUBLE CODES (DTC) P0805, P06B8, P0809, P0850, P087A, P087E, P0884, P283A, P2831, P2836, P2837, P2835, AN INTERMITTENT OR DELAYED ENGAGEMENT, AU…

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.