Go to Main Engineering with a senior officer, preferably the First Officer.
Press fingertips onto the identification panel in Main Engineering and wait for the computer to confirm identities. Both officers must do this.
Say, "Initiate auto-destruct sequence." The computer will then state, "Does [name of senior officer] concur." The senior officer must give an affirmative answer and repeat the request before you may continue with the sequence.
Give a time interval for the auto-destruct countdown when the computer prompts you with "Desired time interval."
Wait for computer to confirm that the auto-destruct sequence is initiated with the appropriate time interval before removing your fingertips from the panel.