* Turn the headlight switch to the "OFF" position: This should completely turn off the headlights, overriding the automatic function. The switch is usually a rotary dial or a rocker switch. Make absolutely sure it's fully in the "off" position, not just dimmed.
* Check for an "Auto" setting: Some vehicles have a specific "Auto" setting on the headlight switch. If you find one, try switching it to "Off" or another setting (like "Park" or a manual position).
* Check the fuse (last resort): If the headlights remain on even with the switch off, there might be a problem with the system. Check your owner's manual for the fuse associated with the headlights and carefully check if it's blown. Don't attempt this unless you are comfortable working with car electrical systems. A blown fuse could indicate a more serious underlying problem.
If none of these steps work, there could be a fault in the car's electrical system or the automatic headlight sensor itself. In this case, a mechanic or qualified automotive technician should be consulted.