Why have my cornering lights stopped working?

My Vauxhall Insignia cornering lights have stopped working. Do they work on a fuse? Can you help me please?

I have noticed many different makes of cars that seem to have a defect when they turn at right angles?

I have noticed many different makes of cars that seem to have a defect when they turn at right angles or go round a roundabout, in their lights. Specifically the spot lights. I have noticed many times...