The shift by wire system uses a push button GSM to interface with the PCM to select gear positions.
The steering wheel includes paddle switches allowing the driver to manually shift the transmission when D is selected on the GSM.
The transmission can not be shifted out of P unless the brake pedal is applied.
A transmission park manual release cable allows the transmission to be shifted out of P manually.
Each door has a backup power system which allows the door to function if your vehicle has no power. The system has a limited number of operations before the power is depleted and turns off. When the system turns off, the door remains open and unlatched and does not close.
If your vehicle has no power and the backup power system is turned off, you can close and secure your vehicle by manually resetting each door latch using a key in the position shown.