Anyone know why its doing that? does it have something to do with traction? its only when I slam on the breaks or accelerate hard in the first couple of gears..

(O) this could mean you're low on brake fluid.

That's the brake pad sign. Your probably at the fine line of your sensors being set off that it'll only do it once in a while, meaning that your sensor is touching the rotor under certain loads. You may need new pads soon.

In just replaced my rear pads and my front pads are still good though. could it be that the sensor is going bad?

fill your fluid, if it goes away, it's the fluid warning light. Then find out why your fluid was low.

What they said lol... ^ ^^