Service Light Came On, Headlight Indicator Blinking

[begins]

Hi all,

2007 C5 2.0L Petrol.
My service light was turned on momentarily with the headlight indicator blinking for a few seconds yesterday morning. It has not reoccur since then. The headlight is functioning perfectly too.

Do you guys know what it means?

I realized that if I pressed the button on the wiper stick and if the service light comes on, it means the wiper water tank is going low. This is not found in the owner manual.

So I’m quite sure the service light comes on for a reason.

Kindly advise me and Thank you very much.

[oneday]

does it mean you have a bulb out just a guess

[mooseshaver]

When I had a 2007 C5 it meant a fault with the directional headlamps. Do you have those or xeons?

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When I had a 2007 C5 it meant a fault with the directional headlamps. Do you have those or xeons?

Not sure whether it is a Xeon but I suppose It is a projector headlamp. The vehicle specification simply mentioned Headlamp bulbs is Discharge bulbs.

Thank you.

Regards,

[begins]

does it mean you have a bulb out just a guess

The bulbs are working perfectly fine...very strange. There is no reoccurrence so far.

Thank you.

Regards,