Final answer:
The ignition switch of an automatic transmission vehicle requires the transmission to be in Park (P) or Neutral (N) to operate, preventing accidents from unintentional vehicle movement.
Step-by-step explanation:
The ignition switch of a vehicle with an automatic transmission will not operate unless the transmission is in a specific position. For the safety of the operator and to prevent the vehicle from moving unexpectedly, the transmission must be in the Park (P) or Neutral (N) position.
This safety feature is known as a neutral safety switch or park safety switch. It is designed to prevent the engine from being started if the transmission is in a gear that could cause the vehicle to move immediately when started, which could lead to accidents or injury.