Conditions for Setting the DTC: P2762
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The TCM detects an internal electrical performance malfunction of the TCC pressure control solenoid circuit and the actual TCC pressure does not equal the commanded TCC pressure for 300 milliseconds.