[quote=itstony]i guess its different for a 00' x5? since i have to press dsc to have light activated on my screen.[/quo\te]
NOPE,

If you push the button, and the light comes ON, the system is OFF!!

If you do nothing and the light flashes, then it is having to compensate for conditions.

If you push and HOLD the button, then the light goes OUT, the system is on half way, Brakes but no throttle.