What P0762 usually means
P0762 is the stuck-on branch of the C-solenoid family. That matters because a stuck-on transmission path does not feel the same as a missing or dead one. The gearbox may hold a gear too long, overlap one shift into the next, or act like the wrong hydraulic state never released after the module changed commands. In practice, the fault can live in a shorted control circuit, a mechanically jammed solenoid, or valve-body wear that keeps pressure applied after the command should be over.