Honda Civic 2019-2024 Sedan Using Automatic Heating Car Owner Manuals

Using Automatic Heating

The automatic heating system maintains the interior temperature you select. It automatically adjusts the mix of heated or cooled air to reach your preferred temperature quickly. Use the system when the engine is running.

1. Press the AUTO button.
2. Adjust the interior temperature using the temperature control dial.
3. Press the On/Off button to cancel.

If any buttons are pressed while in AUTO mode, the function of the pressed button takes priority. The AUTO indicator will turn off, but other system functions continue automatically. The fan may not start immediately to prevent cold air from blowing in. Setting the temperature to the lower or upper limit displays Lo or Hi.

Controls

• (On/Off) Button
• (Recirculation) Button
• Floor and defroster vents
• Floor vents
• Dashboard and floor vents
• Dashboard vents
• AUTO Button
• (Fresh Air) Button
• Temperature Control Dial
• Fan Control Dial

Switching Between Recirculation and Fresh Air Modes

Press the Recirculation or Fresh Air button depending on environmental conditions:

• Recirculation mode: Recirculates air from the vehicle’s interior.
• Fresh air mode: Maintains outside ventilation. Keep in fresh air mode in normal situations.

Pressing the Windshield Defroster button automatically switches to fresh air mode. Press again to return to previous settings.

Defrosting the Windshield and Windows

1. Press the Defrost button.
2. Press the Floor/Defroster button if needed.

After defrosting, switch to fresh air mode. Using recirculation may fog up windows from humidity. Do not set the temperature near Lo or Hi. Adjust side vents if side windows fog up.

Synchronization Mode*

Set driver and passenger side temperatures synchronously using the SYNC button:

1. Press the SYNC button to activate synchronization mode.
2. Adjust the driver’s side temperature using the control dial.

Press SYNC again to return to dual mode, allowing separate temperature control for driver and passenger.

• SYNC Button
• Driver’s Side Temperature Control Dial
• Passenger’s Side Temperature Control Dial