automatic pilot

Noun

• a navigational device that automatically keeps ships or planes or spacecraft on a steady course

• a cognitive state in which you act without self-awareness
  • she went about her chores on automatic pilot
    
  • too much of the writing seems to have been done on automatic pilot
    
  • she talked and he dozed and my mind went on autopilot
    

Related words

• Synonyms: 
  autopilot , robot pilot