Stop/Start?

As one of the old systems programmers used to bawl at us when we had a problem; RTFM!

Driving home Tesco yesterday I had a problem, or so I thought.  When I stopped in traffic or at a junction the engine cut out.

As soon as I lifted off thr brake it started again.

We have stop/start on the Nissan but nothing else stops. In the Ducato, everything stops. Even the DAB radio.

I must have pressed the button when I gave the dash a quick polish with a cloth whilst waiting for the car at the pump in front to sort themselves out.

Then I noticed that a green A light looking like the button appeared on the dash.

DOH! Thank you Stan Cross for the RTFM advice.