Conditions for Setting the DTC
WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
B270A 02
M7 Transmission Shift Lock Control Solenoid ActuatorControl Circuit = Short to Ground - For greater than 60 s