P2535: 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 P2535 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 P2535, 6 of them since 2015, across 4 different models. The component owners most often filed it under: power train.

Most-reported models

VehicleComplaintsModel years reported
FORD F-15032015, 2019, 2020

Manufacturer service bulletins that name P2535

2 technical service bulletins and manufacturer communications filed with NHTSA mention P2535, from 1 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • RAM 1500 (2021), bulletin 10190705: Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigati…

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.