Actions Taken When the DTC Sets

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

DTCs listed in the DTC Descriptor Category = Type A DTC

Autostart/Autostop = Disabled - If equipped
Grade braking = Disabled
Manual Shift Control = Disabled
Neutral Idle Mode = Disabled
Powertrain braking = Disabled
Manual Shift Control = Disabled
TCC Control = Disabled
Transmission Adaptive Pressure Control = Freeze current adapt values
{P0776} Transmission gear allowed = Reverse or Gear 6
{P0777} Transmission gear allowed = Reverse or Gear 2