Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P2769 and P2770 are Type B DTCs.
The TCM inhibits TCC engagement.
The TCM commands maximum line pressure.
The TCM inhibits 4th gear if in hot mode.
The TCM freezes transmission adaptive functions.