I didn't realise that there was a warning light for a duff bulb because the light never comes on when I turn the ignition on. However, I went out last night and had the warning light on for leg one (no lights on) of my journey. It was also on for half of leg two (no lights on), then went out on it's own, and didn't come on for leg three (headlights on). We checked all round the car when I got home and all lights are working fine. I've been out today and it hasn't come on again (sidelights were on).
I presume the car DOES have the bulb warning (because it came on!) but the lights are all in working order and the warning light is no longer on. Could it be something simple like a bulb come loose seeing as it went out on it's own halfway through a journey?
And could the warning light come on even though I didn't have any lights on at the time?