My bulb warning light is on. I changed the front driver side turn signal bulb in the bumper. The warning light went off, but it is on again now. It indicates there is a bulb out, and I have not been able to find out what's causing it. All the bulbs are working on my driver's side, but the warning light is still on and my driver's side turn lights are flashing fast. I'm I missing something, a hidden bulb somewhere???

 

Check the fuses associated with the light itself. I know that my 1989 BMW 535i used to do the ultra fast turn signal when a bulb was out/when a fuse was out.

That's just my guess though.

 

There are 2 bulbs in the front bumper indicators, so make sure you check both. Assuming you've done that, follow the wiring as far back from the lamp as you can as previous 'fixes' can manifest themselves in this way. Rarely have I heard of problems with the light module so check the easy stuff first. Be good to know what you find as I have a double speed flash on the left side but I think that is due to a poor job in fitting x308 bumpers.

 

well, I have noticed when driving, the warning light sometimes goes out and on. Appears that there is a short somewhere.

 

Or, a bad ground.