Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0965, P0966, and P0967 are Type A DTCs. Refer to Diagnostic Trouble Code (DTC) Type Definitions and Diagnostic Trouble Code (DTC) List/Type .
The TCM defaults the transmission to a limited shift pattern utilizing 2 forward gears and reverse based on the fault detected.
The TCM commands maximum line pressure.
The TCM freezes transmission adaptive functions.