! inside triangle idiot light

What does the yellow triangle with an ! inside it lit up on my dash mean?

And look, theres the perfect post Icon for what I'm looking for

I've seen it light up on my dash...
It's not a bad thing; it's the ASR (Anti-Slip Regulation) kicking in. If you've been driving on slippery surfaces (if you live in any of the states hit with the snow storms these past couple of days), then your car is just telling you that it's doing what it should be.
I'm not mecahnically inclined, but I think it works like this: In conjunction with your ABS (anti-lock braking system) the ASR receives a signal when a wheel begins moving faster than the other (aka slipping) and then provides more torque to the other, thus stabilizing the vehicle. It essentially prevents slipping on icy or wet roads.

***Please note that I have NO mechanical experience whatsoever and my post may not be 100 percent accurate. I've offered my opinion only as a way to help. I suggest you seek professional help for any reccurring problems, as it is the best way to ensure your problem is corrected in a timely manner and avoid further damage.