Why does the Citroen Xsara headlight warning light flash?

The Citroën Xsara headlight warning light flashes to alert the driver when the headlights are turned on, typically indicating that the lights are activated. This feature serves as a reminder to ensure that the headlights are functioning properly and to prevent battery drain when the vehicle is off. If the light continues to flash or remains on while the headlights are off, it may indicate an issue with the headlight system that requires attention.