Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

P0969

DTC P0969 is a Type C DTCs.
The TCM freezes transmission adaptive functions to the low and reverse clutch and 4-5-6 clutch.

P0970 and P0971

DTC P0970 and P0971 are Type A DTCs.
The TCM limits the transmission to Reverse and 3rd or 5th gear operation.
The TCM turns the high side driver OFF.
The TCM forces TCC OFF.
The TCM freezes transmission adaptive functions.
The TCM commands maximum line pressure.
The TCM enables Torque management.
The TCM inhibits TAP Up/Down function.
The TCM inhibits manual shifting of forward gears.