noun
Refers to an automatic control system in aircraft, ships, or vehicles. Also used metaphorically for doing something on 'autopilot' without conscious thought.
飛行機はオートパイロットで巡航していた。
The plane was cruising on autopilot.
毎日の通勤はもうオートパイロットでやっている
My daily commute feels like I'm doing it on autopilot now.