Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. 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.