P1722: 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 P1722 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 P1722, 4 of them since 2015, across 4 different models. The component owners most often filed it under: power train.

Most-reported models

VehicleComplaintsModel years reported
NISSAN SENTRA32012

Manufacturer service bulletins that name P1722

1 technical service bulletins and manufacturer communications filed with NHTSA mention P1722, from 1 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • INFINITI QX50 (2019), bulletin 10185379: PERMANENT DTC SET IN TCM AND WILL NOT ERASE IF YOU CONFIRM One or more of the following DTCs are stored in the permanent DTC screen (Figure 1): P0715, P0716, P0718, P0730, P0791, P0793, P0794, P1722, P1742, P1745, P17F0,…

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.