i didn't explain the question well.
on the driver's view, on the rev indicator there is a LED light that lights red when its time to shift to a higher gear. next to that i saw a similar yellow LED light that blinked. it was not a flag or a light on the rear of the car
aaah, I see what you mean now, that's the Indicator light, simply means it's on. the third one (I think, someone else will definately know) is the handbrake light, but I'm not 100% certain with that one, I know it's another red light though :P
Because I just tried answering to a person. I just wasn't sure about if it worked, and I couldn't really test it, and I don't want to use unlocks... So I suggested my reasoning, and if it wasn't right, somebody else would have corrected me (like they did), or otherwise the person who wanted to know, would test it and tell me it wouldn't work.
Don't attack people for trying to help, but accidently answer wrong. That's the problem..