Where is the Civic's external circulation?

[AustinRose]

External circulation is the A/C button next to the car icon. When it lights up, it means it's activated. Below are relevant details about the vehicle's external circulation: 1. Introduction: External circulation mode uses a fan to draw outside air into the vehicle, meaning the air passage between the outside and inside is open. The air blown by the fan comes from outside, and even when the fan is off, airflow still enters the vehicle while driving, replenishing fresh air inside. Sometimes you may feel airflow even with the fan off, which occurs when external circulation is set. During urban traffic congestion, the cabin may fill with exhaust fumes due to external circulation usage. 2. Location: The external circulation air intake is located beneath the windshield wiper blades. Activating external circulation allows outside air to enter as cooled or heated air, typically used when outdoor air quality is good. Internal circulation recirculates cabin air for cooling or heating without outside air intake, usually employed when outdoor air quality is poor. However, prolonged use of internal circulation isn't recommended as it prevents air renewal, potentially affecting health.