Put the car in Park
Exit the vehicle
Walk away with the key card or phone key
Lock the car using the app, key card, or phone key
Wait a few minutes for the vehicle to power down automatically
To turn off the touchscreen, tap Controls, then Safety, then Power Off
Confirm Power Off on the screen
Do not press the brake or open a door if you want it to stay off
To restart, press the brake pedal or open a door