C5 ii service light comes on when I spray windshield washer fluid?

[AlvinCitroenC5]

As the topic says, my C5 ii service light comes on when I spray windshield washer fluid. I never notice that until yesterday. Can someone let me know if they experienced the same thing before? Thanks.

[wheeler]

I think it may be telling you the washer fluid is low? Have you tried topping it up? Is there no accompanying warning messages on the central display?

[MGmike]

what wheeler said! There's no other warning just the service light on the MKII.
Add about 5 lts of washer fluid and all will be well again....

[white exec]

XM will do the same - flash a dash warning of Low Level only when the washers are used.