Vauxhall astra Mreg ,S button?

[davewatch1]

Can anyone help?
What does it mean if the S button starts flashing and the car has little drive in low gear?
I lost my owners book, seem to remember it being something to do with the clutch or transmission, it is an automatic.

 

[stuartinlancashire]

I dunno what it is but this link might help.