[2012 Legacy auto start-stop not working]

Yeah, there is the button on the dash that turns it "off" though I leave it enabled and it still does not work

[2012 Legacy auto start-stop not working]

G'day all. I have just picked up a 2012 Legacy, which was imported into NZ from Japan just over a year ago. It's in mint condition and I'm enjoying driving it. It has an engine auto stop-start feature, (ie. when you're at traffic lights and stopped it will turn the engine off to save fuel) though it does not seem to be working. I don't have an owner manual for it and all of the ones I have found online are American and don't seem to have the auto stop-start feature. 

 

Does anyone have any thoughts on why it might not be working or troubleshooting tips?

 

Cheers,